# CVE-2019-19956: libxml2: The libxml2 library is a development toolbox providing the implementation of various XML standards.  Security Fix(es)...

CVE-2019-19956 is fixed in 5 products on 1 platform, first by libxml2 2.9.4+dfsg1-6.1ubuntu1.3, released January 21, 2020. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2019-19956
- Priority: High
- CVSS: 7.5 (Moderate)
- EPSS: 0.0563
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 24, 2019

## Description

The libxml2 library is a development toolbox providing the implementation of various XML standards.  Security Fix(es):  * libxml2: memory leak in xmlParseBalancedChunkMemoryRecover in parser.c (CVE-2019-19956)  * libxml2: memory leak in xmlSchemaPreRun in xmlschemas.c (CVE-2019-20388)  * libxml2: infinite loop in xmlStringLenDecodeEntities in some end-of-file situations (CVE-2020-7595)  For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.  Additional Changes:  For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.3 Release Notes linked from the References section.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libxml2 RHEL 8 | 0:2.9.7-8.el8 | [RHSA-2020:4479](https://patchblox.com/security/data/fix/linux/rhsa-2020-4479.md) | Nov 4, 2020 |
| Linux | libxml2 Ubuntu 18.04.6 LTS (bionic) | 2.9.4+dfsg1-6.1ubuntu1.3 | [libxml2 2.9.4+dfsg1-6.1ubuntu1.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libxml2-2.9.4-dfsg1-6.1ubuntu1.3.md) | Jan 21, 2020 |
| Linux | libxml2 ol 8 | 0:2.9.7-8.0.1.el8 | [ELSA-2020-4479](https://patchblox.com/security/data/fix/linux/elsa-2020-4479.md) | Nov 10, 2020 |
| Linux | libxml2-devel RHEL 8 | 0:2.9.7-8.el8 | [RHSA-2020:4479](https://patchblox.com/security/data/fix/linux/rhsa-2020-4479.md) | Nov 4, 2020 |
| Linux | libxml2-devel ol 8 | 0:2.9.7-8.0.1.el8 | [ELSA-2020-4479](https://patchblox.com/security/data/fix/linux/elsa-2020-4479.md) | Nov 10, 2020 |
| Linux | libxml2-utils Ubuntu 18.04.6 LTS (bionic) | 2.9.4+dfsg1-6.1ubuntu1.3 | [libxml2-utils 2.9.4+dfsg1-6.1ubuntu1.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libxml2-utils-2.9.4-dfsg1-6.1ubuntu1.3.md) | Jan 21, 2020 |
| Linux | python-libxml2 Ubuntu 18.04.6 LTS (bionic) | 2.9.4+dfsg1-6.1ubuntu1.3 | [python-libxml2 2.9.4+dfsg1-6.1ubuntu1.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-python-libxml2-2.9.4-dfsg1-6.1ubuntu1.3.md) | Jan 21, 2020 |
| Linux | python3-libxml2 RHEL 8 | 0:2.9.7-8.el8 | [RHSA-2020:4479](https://patchblox.com/security/data/fix/linux/rhsa-2020-4479.md) | Nov 4, 2020 |
| Linux | python3-libxml2 Ubuntu 18.04.6 LTS (bionic) | 2.9.4+dfsg1-6.1ubuntu1.3 | [python3-libxml2 2.9.4+dfsg1-6.1ubuntu1.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-python3-libxml2-2.9.4-dfsg1-6.1ubuntu1.3.md) | Jan 21, 2020 |
| Linux | python3-libxml2 ol 8 | 0:2.9.7-8.0.1.el8 | [ELSA-2020-4479](https://patchblox.com/security/data/fix/linux/elsa-2020-4479.md) | Nov 10, 2020 |

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