CVE-2019-18634 (GCVE-0-2019-18634)

Vulnerability from cvelistv5 – Published: 2020-01-29 17:23 – Updated: 2024-08-05 01:54
VLAI
Summary
In Sudo before 1.8.26, if pwfeedback is enabled in /etc/sudoers, users can trigger a stack-based buffer overflow in the privileged sudo process. (pwfeedback is a default setting in Linux Mint and elementary OS; however, it is NOT the default for upstream and many other packages, and would exist only if enabled by an administrator.) The attacker needs to deliver a long string to the stdin of getln() in tgetpass.c.
Severity
No CVSS data available.
CWE
  • n/a
Assigner
References
URL Tags
https://support.apple.com/kb/HT210919 x_refsource_CONFIRM
https://seclists.org/bugtraq/2020/Jan/44 mailing-listx_refsource_BUGTRAQ
https://www.sudo.ws/security.html x_refsource_MISC
https://www.sudo.ws/alerts/pwfeedback.html x_refsource_CONFIRM
http://www.openwall.com/lists/oss-security/2020/01/30/6 mailing-listx_refsource_MLIST
http://www.openwall.com/lists/oss-security/2020/01/31/1 mailing-listx_refsource_MLIST
http://seclists.org/fulldisclosure/2020/Jan/40 mailing-listx_refsource_FULLDISC
https://www.debian.org/security/2020/dsa-4614 vendor-advisoryx_refsource_DEBIAN
https://lists.debian.org/debian-lts-announce/2020… mailing-listx_refsource_MLIST
https://seclists.org/bugtraq/2020/Feb/3 mailing-listx_refsource_BUGTRAQ
https://seclists.org/bugtraq/2020/Feb/2 mailing-listx_refsource_BUGTRAQ
http://packetstormsecurity.com/files/156174/Slack… x_refsource_MISC
http://packetstormsecurity.com/files/156189/Sudo-… x_refsource_MISC
http://www.openwall.com/lists/oss-security/2020/02/05/2 mailing-listx_refsource_MLIST
http://www.openwall.com/lists/oss-security/2020/02/05/5 mailing-listx_refsource_MLIST
https://usn.ubuntu.com/4263-1/ vendor-advisoryx_refsource_UBUNTU
https://security.netapp.com/advisory/ntap-2020021… x_refsource_CONFIRM
https://usn.ubuntu.com/4263-2/ vendor-advisoryx_refsource_UBUNTU
https://access.redhat.com/errata/RHSA-2020:0487 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2020:0509 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2020:0540 vendor-advisoryx_refsource_REDHAT
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://access.redhat.com/errata/RHSA-2020:0726 vendor-advisoryx_refsource_REDHAT
https://security.gentoo.org/glsa/202003-12 vendor-advisoryx_refsource_GENTOO
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T01:54:14.581Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://support.apple.com/kb/HT210919"
          },
          {
            "name": "20200129 APPLE-SA-2020-1-28-2 macOS Catalina 10.15.3, Security Update 2020-001 Mojave, Security Update 2020-001 High Sierra",
            "tags": [
              "mailing-list",
              "x_refsource_BUGTRAQ",
              "x_transferred"
            ],
            "url": "https://seclists.org/bugtraq/2020/Jan/44"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.sudo.ws/security.html"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.sudo.ws/alerts/pwfeedback.html"
          },
          {
            "name": "[oss-security] 20200130 CVE-2019-18634: buffer overflow in sudo when pwfeedback is enabled",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2020/01/30/6"
          },
          {
            "name": "[oss-security] 20200131 Re: CVE-2019-18634: buffer overflow in sudo when pwfeedback is enabled",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2020/01/31/1"
          },
          {
            "name": "20200131 APPLE-SA-2020-1-28-2 macOS Catalina 10.15.3, Security Update 2020-001 Mojave, Security Update 2020-001 High Sierra",
            "tags": [
              "mailing-list",
              "x_refsource_FULLDISC",
              "x_transferred"
            ],
            "url": "http://seclists.org/fulldisclosure/2020/Jan/40"
          },
          {
            "name": "DSA-4614",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2020/dsa-4614"
          },
          {
            "name": "[debian-lts-announce] 20200201 [SECURITY] [DLA 2094-1] sudo security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2020/02/msg00002.html"
          },
          {
            "name": "20200203 [slackware-security] sudo (SSA:2020-031-01)",
            "tags": [
              "mailing-list",
              "x_refsource_BUGTRAQ",
              "x_transferred"
            ],
            "url": "https://seclists.org/bugtraq/2020/Feb/3"
          },
          {
            "name": "20200203 [SECURITY] [DSA 4614-1] sudo security update",
            "tags": [
              "mailing-list",
              "x_refsource_BUGTRAQ",
              "x_transferred"
            ],
            "url": "https://seclists.org/bugtraq/2020/Feb/2"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/156174/Slackware-Security-Advisory-sudo-Updates.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/156189/Sudo-1.8.25p-Buffer-Overflow.html"
          },
          {
            "name": "[oss-security] 20200205 Re: CVE-2019-18634: buffer overflow in sudo when pwfeedback is enabled",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2020/02/05/2"
          },
          {
            "name": "[oss-security] 20200205 Re: CVE-2019-18634: buffer overflow in sudo when pwfeedback is enabled",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2020/02/05/5"
          },
          {
            "name": "USN-4263-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/4263-1/"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20200210-0001/"
          },
          {
            "name": "USN-4263-2",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/4263-2/"
          },
          {
            "name": "RHSA-2020:0487",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2020:0487"
          },
          {
            "name": "RHSA-2020:0509",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2020:0509"
          },
          {
            "name": "RHSA-2020:0540",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2020:0540"
          },
          {
            "name": "openSUSE-SU-2020:0244",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00029.html"
          },
          {
            "name": "FEDORA-2020-8b563bc5f4",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IY6DZ7WMDKU4ZDML6MJLDAPG42B5WVUC/"
          },
          {
            "name": "RHSA-2020:0726",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2020:0726"
          },
          {
            "name": "GLSA-202003-12",
            "tags": [
              "vendor-advisory",
              "x_refsource_GENTOO",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202003-12"
          },
          {
            "name": "FEDORA-2020-7c1b270959",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I6TKF36KOQUVJNBHSVJFA7BU3CCEYD2F/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In Sudo before 1.8.26, if pwfeedback is enabled in /etc/sudoers, users can trigger a stack-based buffer overflow in the privileged sudo process. (pwfeedback is a default setting in Linux Mint and elementary OS; however, it is NOT the default for upstream and many other packages, and would exist only if enabled by an administrator.) The attacker needs to deliver a long string to the stdin of getln() in tgetpass.c."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-03-16T23:06:02.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://support.apple.com/kb/HT210919"
        },
        {
          "name": "20200129 APPLE-SA-2020-1-28-2 macOS Catalina 10.15.3, Security Update 2020-001 Mojave, Security Update 2020-001 High Sierra",
          "tags": [
            "mailing-list",
            "x_refsource_BUGTRAQ"
          ],
          "url": "https://seclists.org/bugtraq/2020/Jan/44"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.sudo.ws/security.html"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.sudo.ws/alerts/pwfeedback.html"
        },
        {
          "name": "[oss-security] 20200130 CVE-2019-18634: buffer overflow in sudo when pwfeedback is enabled",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2020/01/30/6"
        },
        {
          "name": "[oss-security] 20200131 Re: CVE-2019-18634: buffer overflow in sudo when pwfeedback is enabled",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2020/01/31/1"
        },
        {
          "name": "20200131 APPLE-SA-2020-1-28-2 macOS Catalina 10.15.3, Security Update 2020-001 Mojave, Security Update 2020-001 High Sierra",
          "tags": [
            "mailing-list",
            "x_refsource_FULLDISC"
          ],
          "url": "http://seclists.org/fulldisclosure/2020/Jan/40"
        },
        {
          "name": "DSA-4614",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "https://www.debian.org/security/2020/dsa-4614"
        },
        {
          "name": "[debian-lts-announce] 20200201 [SECURITY] [DLA 2094-1] sudo security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2020/02/msg00002.html"
        },
        {
          "name": "20200203 [slackware-security] sudo (SSA:2020-031-01)",
          "tags": [
            "mailing-list",
            "x_refsource_BUGTRAQ"
          ],
          "url": "https://seclists.org/bugtraq/2020/Feb/3"
        },
        {
          "name": "20200203 [SECURITY] [DSA 4614-1] sudo security update",
          "tags": [
            "mailing-list",
            "x_refsource_BUGTRAQ"
          ],
          "url": "https://seclists.org/bugtraq/2020/Feb/2"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://packetstormsecurity.com/files/156174/Slackware-Security-Advisory-sudo-Updates.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://packetstormsecurity.com/files/156189/Sudo-1.8.25p-Buffer-Overflow.html"
        },
        {
          "name": "[oss-security] 20200205 Re: CVE-2019-18634: buffer overflow in sudo when pwfeedback is enabled",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2020/02/05/2"
        },
        {
          "name": "[oss-security] 20200205 Re: CVE-2019-18634: buffer overflow in sudo when pwfeedback is enabled",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2020/02/05/5"
        },
        {
          "name": "USN-4263-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/4263-1/"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20200210-0001/"
        },
        {
          "name": "USN-4263-2",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/4263-2/"
        },
        {
          "name": "RHSA-2020:0487",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2020:0487"
        },
        {
          "name": "RHSA-2020:0509",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2020:0509"
        },
        {
          "name": "RHSA-2020:0540",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2020:0540"
        },
        {
          "name": "openSUSE-SU-2020:0244",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00029.html"
        },
        {
          "name": "FEDORA-2020-8b563bc5f4",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IY6DZ7WMDKU4ZDML6MJLDAPG42B5WVUC/"
        },
        {
          "name": "RHSA-2020:0726",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2020:0726"
        },
        {
          "name": "GLSA-202003-12",
          "tags": [
            "vendor-advisory",
            "x_refsource_GENTOO"
          ],
          "url": "https://security.gentoo.org/glsa/202003-12"
        },
        {
          "name": "FEDORA-2020-7c1b270959",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I6TKF36KOQUVJNBHSVJFA7BU3CCEYD2F/"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2019-18634",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "In Sudo before 1.8.26, if pwfeedback is enabled in /etc/sudoers, users can trigger a stack-based buffer overflow in the privileged sudo process. (pwfeedback is a default setting in Linux Mint and elementary OS; however, it is NOT the default for upstream and many other packages, and would exist only if enabled by an administrator.) The attacker needs to deliver a long string to the stdin of getln() in tgetpass.c."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://support.apple.com/kb/HT210919",
              "refsource": "CONFIRM",
              "url": "https://support.apple.com/kb/HT210919"
            },
            {
              "name": "20200129 APPLE-SA-2020-1-28-2 macOS Catalina 10.15.3, Security Update 2020-001 Mojave, Security Update 2020-001 High Sierra",
              "refsource": "BUGTRAQ",
              "url": "https://seclists.org/bugtraq/2020/Jan/44"
            },
            {
              "name": "https://www.sudo.ws/security.html",
              "refsource": "MISC",
              "url": "https://www.sudo.ws/security.html"
            },
            {
              "name": "https://www.sudo.ws/alerts/pwfeedback.html",
              "refsource": "CONFIRM",
              "url": "https://www.sudo.ws/alerts/pwfeedback.html"
            },
            {
              "name": "[oss-security] 20200130 CVE-2019-18634: buffer overflow in sudo when pwfeedback is enabled",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2020/01/30/6"
            },
            {
              "name": "[oss-security] 20200131 Re: CVE-2019-18634: buffer overflow in sudo when pwfeedback is enabled",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2020/01/31/1"
            },
            {
              "name": "20200131 APPLE-SA-2020-1-28-2 macOS Catalina 10.15.3, Security Update 2020-001 Mojave, Security Update 2020-001 High Sierra",
              "refsource": "FULLDISC",
              "url": "http://seclists.org/fulldisclosure/2020/Jan/40"
            },
            {
              "name": "DSA-4614",
              "refsource": "DEBIAN",
              "url": "https://www.debian.org/security/2020/dsa-4614"
            },
            {
              "name": "[debian-lts-announce] 20200201 [SECURITY] [DLA 2094-1] sudo security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2020/02/msg00002.html"
            },
            {
              "name": "20200203 [slackware-security] sudo (SSA:2020-031-01)",
              "refsource": "BUGTRAQ",
              "url": "https://seclists.org/bugtraq/2020/Feb/3"
            },
            {
              "name": "20200203 [SECURITY] [DSA 4614-1] sudo security update",
              "refsource": "BUGTRAQ",
              "url": "https://seclists.org/bugtraq/2020/Feb/2"
            },
            {
              "name": "http://packetstormsecurity.com/files/156174/Slackware-Security-Advisory-sudo-Updates.html",
              "refsource": "MISC",
              "url": "http://packetstormsecurity.com/files/156174/Slackware-Security-Advisory-sudo-Updates.html"
            },
            {
              "name": "http://packetstormsecurity.com/files/156189/Sudo-1.8.25p-Buffer-Overflow.html",
              "refsource": "MISC",
              "url": "http://packetstormsecurity.com/files/156189/Sudo-1.8.25p-Buffer-Overflow.html"
            },
            {
              "name": "[oss-security] 20200205 Re: CVE-2019-18634: buffer overflow in sudo when pwfeedback is enabled",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2020/02/05/2"
            },
            {
              "name": "[oss-security] 20200205 Re: CVE-2019-18634: buffer overflow in sudo when pwfeedback is enabled",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2020/02/05/5"
            },
            {
              "name": "USN-4263-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/4263-1/"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20200210-0001/",
              "refsource": "CONFIRM",
              "url": "https://security.netapp.com/advisory/ntap-20200210-0001/"
            },
            {
              "name": "USN-4263-2",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/4263-2/"
            },
            {
              "name": "RHSA-2020:0487",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2020:0487"
            },
            {
              "name": "RHSA-2020:0509",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2020:0509"
            },
            {
              "name": "RHSA-2020:0540",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2020:0540"
            },
            {
              "name": "openSUSE-SU-2020:0244",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00029.html"
            },
            {
              "name": "FEDORA-2020-8b563bc5f4",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IY6DZ7WMDKU4ZDML6MJLDAPG42B5WVUC/"
            },
            {
              "name": "RHSA-2020:0726",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2020:0726"
            },
            {
              "name": "GLSA-202003-12",
              "refsource": "GENTOO",
              "url": "https://security.gentoo.org/glsa/202003-12"
            },
            {
              "name": "FEDORA-2020-7c1b270959",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/I6TKF36KOQUVJNBHSVJFA7BU3CCEYD2F/"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2019-18634",
    "datePublished": "2020-01-29T17:23:26.000Z",
    "dateReserved": "2019-10-30T00:00:00.000Z",
    "dateUpdated": "2024-08-05T01:54:14.581Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2019-18634",
      "date": "2026-05-29",
      "epss": "0.88008",
      "percentile": "0.99497"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2019-18634\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2020-01-29T18:15:12.247\",\"lastModified\":\"2024-11-21T04:33:25.447\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In Sudo before 1.8.26, if pwfeedback is enabled in /etc/sudoers, users can trigger a stack-based buffer overflow in the privileged sudo process. (pwfeedback is a default setting in Linux Mint and elementary OS; however, it is NOT the default for upstream and many other packages, and would exist only if enabled by an administrator.) The attacker needs to deliver a long string to the stdin of getln() in tgetpass.c.\"},{\"lang\":\"es\",\"value\":\"En Sudo anterior a la versi\u00f3n 1.8.26, si pwfeedback est\u00e1 habilitado en / etc / sudoers, los usuarios pueden desencadenar un desbordamiento de b\u00fafer basado en pila en el proceso de sudo privilegiado. (pwfeedback es una configuraci\u00f3n predeterminada en Linux Mint y sistema operativo elemental; sin embargo, NO es el valor predeterminado para paquetes ascendentes y muchos otros, y existir\u00eda solo si lo habilita un administrador). El atacante debe entregar una cadena larga al stdin de getln () en tgetpass.c.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:L/Au:N/C:P/I:P/A:P\",\"baseScore\":4.6,\"accessVector\":\"LOCAL\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":3.9,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-787\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:sudo_project:sudo:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.7.1\",\"versionEndExcluding\":\"1.8.26\",\"matchCriteriaId\":\"D4B7DF92-891F-4E55-BE5D-759D8E68D501\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DEECE5FC-CACF-4496-A3E7-164736409252\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"07B237A9-69A3-4A9C-9DA0-4E06BD37AE73\"}]}]}],\"references\":[{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00029.html\",\"source\":\"cve@mitre.org\"},{\"url\":\"http://packetstormsecurity.com/files/156174/Slackware-Security-Advisory-sudo-Updates.html\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"http://packetstormsecurity.com/files/156189/Sudo-1.8.25p-Buffer-Overflow.html\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"http://seclists.org/fulldisclosure/2020/Jan/40\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2020/01/30/6\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2020/01/31/1\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2020/02/05/2\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2020/02/05/5\",\"source\":\"cve@mitre.org\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://access.redhat.com/errata/RHSA-2020:0487\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2020:0509\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2020:0540\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2020:0726\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://lists.debian.org/debian-lts-announce/2020/02/msg00002.html\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I6TKF36KOQUVJNBHSVJFA7BU3CCEYD2F/\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IY6DZ7WMDKU4ZDML6MJLDAPG42B5WVUC/\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://seclists.org/bugtraq/2020/Feb/2\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://seclists.org/bugtraq/2020/Feb/3\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://seclists.org/bugtraq/2020/Jan/44\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://security.gentoo.org/glsa/202003-12\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://security.netapp.com/advisory/ntap-20200210-0001/\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://support.apple.com/kb/HT210919\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://usn.ubuntu.com/4263-1/\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://usn.ubuntu.com/4263-2/\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://www.debian.org/security/2020/dsa-4614\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.sudo.ws/alerts/pwfeedback.html\",\"source\":\"cve@mitre.org\",\"tags\":[\"Exploit\",\"Vendor Advisory\"]},{\"url\":\"https://www.sudo.ws/security.html\",\"source\":\"cve@mitre.org\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00029.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://packetstormsecurity.com/files/156174/Slackware-Security-Advisory-sudo-Updates.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"http://packetstormsecurity.com/files/156189/Sudo-1.8.25p-Buffer-Overflow.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"http://seclists.org/fulldisclosure/2020/Jan/40\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2020/01/30/6\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2020/01/31/1\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2020/02/05/2\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2020/02/05/5\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://access.redhat.com/errata/RHSA-2020:0487\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2020:0509\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2020:0540\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2020:0726\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.debian.org/debian-lts-announce/2020/02/msg00002.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I6TKF36KOQUVJNBHSVJFA7BU3CCEYD2F/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IY6DZ7WMDKU4ZDML6MJLDAPG42B5WVUC/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://seclists.org/bugtraq/2020/Feb/2\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://seclists.org/bugtraq/2020/Feb/3\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://seclists.org/bugtraq/2020/Jan/44\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://security.gentoo.org/glsa/202003-12\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://security.netapp.com/advisory/ntap-20200210-0001/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://support.apple.com/kb/HT210919\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://usn.ubuntu.com/4263-1/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://usn.ubuntu.com/4263-2/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://www.debian.org/security/2020/dsa-4614\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.sudo.ws/alerts/pwfeedback.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Vendor Advisory\"]},{\"url\":\"https://www.sudo.ws/security.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.