CVE-2019-15903 (GCVE-0-2019-15903)

Vulnerability from cvelistv5 – Published: 2019-09-04 05:59 – Updated: 2026-10-14 06:50
VLAI
Summary
In libexpat before 2.2.8, crafted XML input could fool the parser into changing from DTD parsing to document parsing too early; a consecutive call to XML_GetCurrentLineNumber (or XML_GetCurrentColumnNumber) then resulted in a heap-based buffer over-read.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-05-30 19:27 UTC
CWE
Assigner
mitre CNA under the mitre root
CNA scorecard E 29/100 over 2267 records in the last 180 days details
References
URL Tags
https://usn.ubuntu.com/4132-1/ vendor-advisoryx_refsource_UBUNTU
https://seclists.org/bugtraq/2019/Sep/30 mailing-listx_refsource_BUGTRAQ
https://usn.ubuntu.com/4132-2/ vendor-advisoryx_refsource_UBUNTU
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://www.debian.org/security/2019/dsa-4530 vendor-advisoryx_refsource_DEBIAN
https://seclists.org/bugtraq/2019/Sep/37 mailing-listx_refsource_BUGTRAQ
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://seclists.org/bugtraq/2019/Oct/29 mailing-listx_refsource_BUGTRAQ
https://usn.ubuntu.com/4165-1/ vendor-advisoryx_refsource_UBUNTU
https://www.debian.org/security/2019/dsa-4549 vendor-advisoryx_refsource_DEBIAN
https://access.redhat.com/errata/RHSA-2019:3210 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:3237 vendor-advisoryx_refsource_REDHAT
https://seclists.org/bugtraq/2019/Nov/1 mailing-listx_refsource_BUGTRAQ
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://access.redhat.com/errata/RHSA-2019:3756 vendor-advisoryx_refsource_REDHAT
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://lists.debian.org/debian-lts-announce/2019… mailing-listx_refsource_MLIST
https://seclists.org/bugtraq/2019/Nov/24 mailing-listx_refsource_BUGTRAQ
https://www.debian.org/security/2019/dsa-4571 vendor-advisoryx_refsource_DEBIAN
https://lists.debian.org/debian-lts-announce/2019… mailing-listx_refsource_MLIST
https://security.gentoo.org/glsa/201911-08 vendor-advisoryx_refsource_GENTOO
https://usn.ubuntu.com/4202-1/ vendor-advisoryx_refsource_UBUNTU
https://seclists.org/bugtraq/2019/Dec/17 mailing-listx_refsource_BUGTRAQ
https://seclists.org/bugtraq/2019/Dec/21 mailing-listx_refsource_BUGTRAQ
https://seclists.org/bugtraq/2019/Dec/23 mailing-listx_refsource_BUGTRAQ
http://seclists.org/fulldisclosure/2019/Dec/23 mailing-listx_refsource_FULLDISC
http://seclists.org/fulldisclosure/2019/Dec/26 mailing-listx_refsource_FULLDISC
http://seclists.org/fulldisclosure/2019/Dec/30 mailing-listx_refsource_FULLDISC
http://seclists.org/fulldisclosure/2019/Dec/27 mailing-listx_refsource_FULLDISC
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://usn.ubuntu.com/4335-1/ vendor-advisoryx_refsource_UBUNTU
https://www.oracle.com/security-alerts/cpuapr2020.html x_refsource_MISC
https://www.oracle.com/security-alerts/cpuoct2020.html x_refsource_MISC
https://github.com/libexpat/libexpat/issues/317 x_refsource_MISC
https://github.com/libexpat/libexpat/pull/318 x_refsource_MISC
https://github.com/libexpat/libexpat/commit/c20b7… x_refsource_MISC
https://github.com/libexpat/libexpat/issues/342 x_refsource_CONFIRM
http://packetstormsecurity.com/files/154503/Slack… x_refsource_MISC
https://security.netapp.com/advisory/ntap-2019092… x_refsource_CONFIRM
http://packetstormsecurity.com/files/154927/Slack… x_refsource_MISC
http://packetstormsecurity.com/files/154947/Slack… x_refsource_MISC
https://support.apple.com/kb/HT210788 x_refsource_CONFIRM
https://support.apple.com/kb/HT210790 x_refsource_CONFIRM
https://support.apple.com/kb/HT210785 x_refsource_CONFIRM
https://support.apple.com/kb/HT210789 x_refsource_CONFIRM
https://support.apple.com/kb/HT210793 x_refsource_CONFIRM
https://support.apple.com/kb/HT210795 x_refsource_CONFIRM
https://support.apple.com/kb/HT210794 x_refsource_CONFIRM
https://www.tenable.com/security/tns-2021-11 x_refsource_CONFIRM
https://cert-portal.siemens.com/productcert/html/…
Impacted products
Vendor Product Version CPE status
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.0 , < V3.1.5 (custom)
guessed Create a notification for this product.
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP Affected: V3.1.0 , < V3.1.5 (custom)
guessed Create a notification for this product.
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.0 , < V3.1.5 (custom)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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        "title": "CVE Program Container"
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              "availabilityImpact": "HIGH",
              "baseScore": 6.5,
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                  "name": "http://packetstormsecurity.com/files/154927/Slackware-Security-Advisory-python-Updates.html",
                  "refsource": "MISC",
                  "url": "http://packetstormsecurity.com/files/154927/Slackware-Security-Advisory-python-Updates.html"
                },
                {
                  "name": "http://packetstormsecurity.com/files/154947/Slackware-Security-Advisory-mozilla-firefox-Updates.html",
                  "refsource": "MISC",
                  "url": "http://packetstormsecurity.com/files/154947/Slackware-Security-Advisory-mozilla-firefox-Updates.html"
                },
                {
                  "name": "https://support.apple.com/kb/HT210788",
                  "refsource": "CONFIRM",
                  "url": "https://support.apple.com/kb/HT210788"
                },
                {
                  "name": "https://support.apple.com/kb/HT210790",
                  "refsource": "CONFIRM",
                  "url": "https://support.apple.com/kb/HT210790"
                },
                {
                  "name": "https://support.apple.com/kb/HT210785",
                  "refsource": "CONFIRM",
                  "url": "https://support.apple.com/kb/HT210785"
                },
                {
                  "name": "https://support.apple.com/kb/HT210789",
                  "refsource": "CONFIRM",
                  "url": "https://support.apple.com/kb/HT210789"
                },
                {
                  "name": "https://support.apple.com/kb/HT210793",
                  "refsource": "CONFIRM",
                  "url": "https://support.apple.com/kb/HT210793"
                },
                {
                  "name": "https://support.apple.com/kb/HT210795",
                  "refsource": "CONFIRM",
                  "url": "https://support.apple.com/kb/HT210795"
                },
                {
                  "name": "https://support.apple.com/kb/HT210794",
                  "refsource": "CONFIRM",
                  "url": "https://support.apple.com/kb/HT210794"
                },
                {
                  "name": "https://www.tenable.com/security/tns-2021-11",
                  "refsource": "CONFIRM",
                  "url": "https://www.tenable.com/security/tns-2021-11"
                }
              ]
            }
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "assignerShortName": "mitre",
        "cveId": "CVE-2019-15903",
        "datePublished": "2019-09-04T05:59:16.000Z",
        "dateReserved": "2019-09-04T00:00:00.000Z",
        "dateUpdated": "2026-10-14T06:50:10.037Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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

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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.
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    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.