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Vulnerability record · CVE-2018-1311 · published 18 December 2019

CVE-2018-1311: Apache xerces-c\+\+ use after free vulnerability

Apache · Xerces C\+\+

The Apache Xerces-C 3.0.0 to 3.2.3 XML parser contains a use-after-free error triggered during the scanning of external DTDs. This flaw has not been addressed in the maintained version of the library and has no current mitigation other than to disable DTD processing. This can be accomplished via the DOM using a standard parser feature, or via SAX using the XERCES_DISABLE_DTD environment variable.

8.1 CVSS 3.1 High EPSS 9.5% · top 4.7% CWE-416 · Use after free
8.1CVSS 3.1 base score, v2 6.8
9.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
10Affected product versions listed by NVD
29References
17 Jun 2026Last modified by NVD

Description

The Apache Xerces-C 3.0.0 to 3.2.3 XML parser contains a use-after-free error triggered during the scanning of external DTDs. This flaw has not been addressed in the maintained version of the library and has no current mitigation other than to disable DTD processing. This can be accomplished via the DOM using a standard parser feature, or via SAX using the XERCES_DISABLE_DTD environment variable.

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

Affected products

10 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.openwall.com/lists/oss-security/2024/02/16/1 Mailing ListThird Party Advisory
https://access.redhat.com/errata/RHSA-2020:0702 Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0704 Third Party Advisory
https://lists.apache.org/thread.html/r48ea463fde218b1e4cc1a1d05770a0cea34de0600b4355315a49226b%40%3Cc-dev.xerces.apache. Vendor Advisory
https://lists.apache.org/thread.html/r90ec105571622a7dc3a43b846c12732d2e563561dfb2f72941625f35%40%3Cc-users.xerces.apach Issue Tracking
https://lists.apache.org/thread.html/rabbcc0249de1dda70cda96fd9bcff78217be7a57d96e7dcc8cd96646%40%3Cc-users.xerces.apach Issue Tracking
https://lists.apache.org/thread.html/rfeb8abe36bcca91eb603deef49fbbe46870918830a66328a780b8625%40%3Cc-users.xerces.apach Issue Tracking
https://lists.debian.org/debian-lts-announce/2020/12/msg00025.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2023/12/msg00027.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7A6WWL4SWKAVYK6VK5YN7KZ Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AJYZUBGPVWJ7LEHRCMB5XVA Mailing ListThird Party Advisory
https://marc.info/?l=xerces-c-users&m=157653840106914&w=2 Mailing ListThird Party Advisory
https://www.debian.org/security/2020/dsa-4814 Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2022.html PatchThird Party Advisory
http://www.openwall.com/lists/oss-security/2024/02/16/1 Mailing ListThird Party Advisory
https://access.redhat.com/errata/RHSA-2020:0702 Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0704 Third Party Advisory
https://lists.apache.org/thread.html/r48ea463fde218b1e4cc1a1d05770a0cea34de0600b4355315a49226b%40%3Cc-dev.xerces.apache. Vendor Advisory
https://lists.apache.org/thread.html/r90ec105571622a7dc3a43b846c12732d2e563561dfb2f72941625f35%40%3Cc-users.xerces.apach Issue Tracking
https://lists.apache.org/thread.html/rabbcc0249de1dda70cda96fd9bcff78217be7a57d96e7dcc8cd96646%40%3Cc-users.xerces.apach Issue Tracking
https://lists.apache.org/thread.html/rfeb8abe36bcca91eb603deef49fbbe46870918830a66328a780b8625%40%3Cc-users.xerces.apach Issue Tracking
https://lists.debian.org/debian-lts-announce/2020/12/msg00025.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2023/12/msg00027.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7A6WWL4SWKAVYK6VK5YN7KZ Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AJYZUBGPVWJ7LEHRCMB5XVA Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/[email protected]/message/AJYZUBGPVWJ7LEHRCMB5XVADQ
https://marc.info/?l=xerces-c-users&m=157653840106914&w=2 Mailing ListThird Party Advisory
https://www.debian.org/security/2020/dsa-4814 Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2022.html PatchThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2018-1311), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.