Vulnerability-Lookup

ubuntu-cve-2018-5382

Vulnerability from osv_ubuntu

Published

2018-04-16 14:29

Modified

2025-07-16 04:53

Summary

Details

The default BKS keystore use an HMAC that is only 16 bits long, which can allow an attacker to compromise the integrity of a BKS keystore. Bouncy Castle release 1.47 changes the BKS format to a format which uses a 160 bit HMAC instead. This applies to any BKS keystore generated prior to BC 1.47. For situations where people need to create the files for legacy reasons a specific keystore type "BKS-V1" was introduced in 1.49. It should be noted that the use of "BKS-V1" is discouraged by the library authors and should only be used where it is otherwise safe to do so, as in where the use of a 16 bit checksum for the file integrity check is not going to cause a security issue in itself.

Severity

4.4 (Medium)


                    
                      CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

9.8 (Critical)


                    
                      CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2018-5382	REPORT
	https://insights.sei.cmu.edu/cert/2018/03/the-cur…	REPORT
	https://www.kb.cert.org/vuls/id/306792	REPORT
	https://www.cve.org/CVERecord?id=CVE-2018-5382	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libbcmail-java",
            "binary_version": "1.49+dfsg-2"
          },
          {
            "binary_name": "libbcmail-java-doc",
            "binary_version": "1.49+dfsg-2"
          },
          {
            "binary_name": "libbcpg-java",
            "binary_version": "1.49+dfsg-2"
          },
          {
            "binary_name": "libbcpg-java-doc",
            "binary_version": "1.49+dfsg-2"
          },
          {
            "binary_name": "libbcpkix-java",
            "binary_version": "1.49+dfsg-2"
          },
          {
            "binary_name": "libbcpkix-java-doc",
            "binary_version": "1.49+dfsg-2"
          },
          {
            "binary_name": "libbcprov-java",
            "binary_version": "1.49+dfsg-2"
          },
          {
            "binary_name": "libbcprov-java-doc",
            "binary_version": "1.49+dfsg-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "bouncycastle",
        "purl": "pkg:deb/ubuntu/bouncycastle@1.49+dfsg-2?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.49+dfsg-2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.48+dfsg-2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libbcmail-java",
            "binary_version": "1.51-4ubuntu1"
          },
          {
            "binary_name": "libbcmail-java-doc",
            "binary_version": "1.51-4ubuntu1"
          },
          {
            "binary_name": "libbcpg-java",
            "binary_version": "1.51-4ubuntu1"
          },
          {
            "binary_name": "libbcpg-java-doc",
            "binary_version": "1.51-4ubuntu1"
          },
          {
            "binary_name": "libbcpkix-java",
            "binary_version": "1.51-4ubuntu1"
          },
          {
            "binary_name": "libbcpkix-java-doc",
            "binary_version": "1.51-4ubuntu1"
          },
          {
            "binary_name": "libbcprov-java",
            "binary_version": "1.51-4ubuntu1"
          },
          {
            "binary_name": "libbcprov-java-doc",
            "binary_version": "1.51-4ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "bouncycastle",
        "purl": "pkg:deb/ubuntu/bouncycastle@1.51-4ubuntu1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.51-4ubuntu1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.49+dfsg-3ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "The default BKS keystore use an HMAC that is only 16 bits long, which can allow an attacker to compromise the integrity of a BKS keystore. Bouncy Castle release 1.47 changes the BKS format to a format which uses a 160 bit HMAC instead. This applies to any BKS keystore generated prior to BC 1.47. For situations where people need to create the files for legacy reasons a specific keystore type \"BKS-V1\" was introduced in 1.49. It should be noted that the use of \"BKS-V1\" is discouraged by the library authors and should only be used where it is otherwise safe to do so, as in where the use of a 16 bit checksum for the file integrity check is not going to cause a security issue in itself.",
  "id": "UBUNTU-CVE-2018-5382",
  "modified": "2025-07-16T04:53:31Z",
  "published": "2018-04-16T14:29:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-5382"
    },
    {
      "type": "REPORT",
      "url": "https://insights.sei.cmu.edu/cert/2018/03/the-curious-case-of-the-bouncy-castle-bks-passwords.html"
    },
    {
      "type": "REPORT",
      "url": "https://www.kb.cert.org/vuls/id/306792"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2018-5382"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2018-5382"
  ],
  "withdrawn": "2025-07-18T16:44:28Z"
}

CVE-2018-5382 (GCVE-0-2018-5382)

Vulnerability from cvelistv5 – Published: 2018-04-16 13:00 – Updated: 2024-09-16 16:27

Title

Bouncy Castle BKS-V1 keystore files vulnerable to trivial hash collisions

Summary

Severity

No CVSS data available.

CWE

CWE-327 - Use of a Broken or Risky Cryptographic Algorithm

Assigner

certcc

References

5 references

URL	Tags
http://www.securityfocus.com/bid/103453	vdb-entryx_refsource_BID
https://access.redhat.com/errata/RHSA-2018:2927	vendor-advisoryx_refsource_REDHAT
https://www.kb.cert.org/vuls/id/306792	third-party-advisoryx_refsource_CERT-VN
https://www.bouncycastle.org/releasenotes.html	x_refsource_MISC
https://www.oracle.com/security-alerts/cpuoct2020.html	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Legion of the Bouncy Castle	Bouncy Castle	Affected: all , < 1.47 (custom)

Date Public

2012-03-20 00:00

Show details on NVD website

JSON

To clipboard

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          {
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            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
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            "url": "http://www.securityfocus.com/bid/103453"
          },
          {
            "name": "RHSA-2018:2927",
            "tags": [
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              "x_refsource_REDHAT",
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            ],
            "url": "https://access.redhat.com/errata/RHSA-2018:2927"
          },
          {
            "name": "VU#306792",
            "tags": [
              "third-party-advisory",
              "x_refsource_CERT-VN",
              "x_transferred"
            ],
            "url": "https://www.kb.cert.org/vuls/id/306792"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.bouncycastle.org/releasenotes.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.oracle.com/security-alerts/cpuoct2020.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Bouncy Castle",
          "vendor": "Legion of the Bouncy Castle",
          "versions": [
            {
              "lessThan": "1.47",
              "status": "affected",
              "version": "all",
              "versionType": "custom"
            }
          ]
        }
      ],
      "datePublic": "2012-03-20T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "The default BKS keystore use an HMAC that is only 16 bits long, which can allow an attacker to compromise the integrity of a BKS keystore. Bouncy Castle release 1.47 changes the BKS format to a format which uses a 160 bit HMAC instead. This applies to any BKS keystore generated prior to BC 1.47. For situations where people need to create the files for legacy reasons a specific keystore type \"BKS-V1\" was introduced in 1.49. It should be noted that the use of \"BKS-V1\" is discouraged by the library authors and should only be used where it is otherwise safe to do so, as in where the use of a 16 bit checksum for the file integrity check is not going to cause a security issue in itself."
        }
      ],
      "problemTypes": [
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              "description": "CWE-327: Use of a Broken or Risky Cryptographic Algorithm",
              "lang": "en",
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            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-04-02T18:52:28.000Z",
        "orgId": "37e5125f-f79b-445b-8fad-9564f167944b",
        "shortName": "certcc"
      },
      "references": [
        {
          "name": "103453",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/103453"
        },
        {
          "name": "RHSA-2018:2927",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2018:2927"
        },
        {
          "name": "VU#306792",
          "tags": [
            "third-party-advisory",
            "x_refsource_CERT-VN"
          ],
          "url": "https://www.kb.cert.org/vuls/id/306792"
        },
        {
          "tags": [
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          ],
          "url": "https://www.bouncycastle.org/releasenotes.html"
        },
        {
          "tags": [
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          ],
          "url": "https://www.oracle.com/security-alerts/cpuoct2020.html"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Bouncy Castle BKS-V1 keystore files vulnerable to trivial hash collisions",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cert@cert.org",
          "DATE_PUBLIC": "2012-03-20T00:00:00.000Z",
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          "STATE": "PUBLIC",
          "TITLE": "Bouncy Castle BKS-V1 keystore files vulnerable to trivial hash collisions"
        },
        "affects": {
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            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Bouncy Castle",
                      "version": {
                        "version_data": [
                          {
                            "affected": "\u003c",
                            "version_affected": "\u003c",
                            "version_name": "all",
                            "version_value": "1.47"
                          }
                        ]
                      }
                    }
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                },
                "vendor_name": "Legion of the Bouncy Castle"
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        },
        "references": {
          "reference_data": [
            {
              "name": "103453",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/103453"
            },
            {
              "name": "RHSA-2018:2927",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2018:2927"
            },
            {
              "name": "VU#306792",
              "refsource": "CERT-VN",
              "url": "https://www.kb.cert.org/vuls/id/306792"
            },
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              "refsource": "MISC",
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    "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b",
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    "datePublished": "2018-04-16T13:00:00.000Z",
    "dateReserved": "2018-01-12T00:00:00.000Z",
    "dateUpdated": "2024-09-16T16:27:56.228Z",
    "state": "PUBLISHED"
  },
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}

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.

Action not permitted

ubuntu-cve-2018-5382

Vulnerability from osv_ubuntu

CVE-2018-5382 (GCVE-0-2018-5382)

Tags

Sightings

Nomenclature