# CVE-2018-1311: libxerces-c3.2: The Apache Xerces-C 3.0.0 to 3.2.3 XML parser contains a use-after-free error triggered during the scanning of extern...

CVE-2018-1311 is fixed in 2 products on 1 platform, first by libxerces-c-samples 3.2.2+debian-1ubuntu0.1, released December 18, 2019. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2018-1311
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0950
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 18, 2019

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libxerces-c-samples Ubuntu 18.04.6 LTS (bionic) | 3.2.0+debian-2ubuntu0.1~esm2 | [libxerces-c-samples 3.2.0+debian-2ubuntu0.1~esm2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libxerces-c-samples-3.2.0-debian-2ubuntu0.1-esm2.md) | Feb 28, 2024 |
| Linux | libxerces-c-samples Ubuntu 20.04 LTS (focal) | 3.2.2+debian-1ubuntu0.1 | [libxerces-c-samples 3.2.2+debian-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libxerces-c-samples-3.2.2-debian-1ubuntu0.1.md) | Dec 18, 2019 |
| Linux | libxerces-c-samples Ubuntu 22.04.1 LTS (jammy) | 3.2.3+debian-3ubuntu0.1~esm1 | [libxerces-c-samples 3.2.3+debian-3ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libxerces-c-samples-3.2.3-debian-3ubuntu0.1-esm1.md) | Feb 28, 2024 |
| Linux | libxerces-c3.2 Ubuntu 18.04.6 LTS (bionic) | 3.2.0+debian-2ubuntu0.1~esm2 | [libxerces-c3.2 3.2.0+debian-2ubuntu0.1~esm2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libxerces-c3.2-3.2.0-debian-2ubuntu0.1-esm2.md) | Feb 28, 2024 |
| Linux | libxerces-c3.2 Ubuntu 20.04 LTS (focal) | 3.2.2+debian-1ubuntu0.1 | [libxerces-c3.2 3.2.2+debian-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libxerces-c3.2-3.2.2-debian-1ubuntu0.1.md) | Dec 18, 2019 |
| Linux | libxerces-c3.2 Ubuntu 22.04.1 LTS (jammy) | 3.2.3+debian-3ubuntu0.1~esm1 | [libxerces-c3.2 3.2.3+debian-3ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libxerces-c3.2-3.2.3-debian-3ubuntu0.1-esm1.md) | Feb 28, 2024 |

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