CVE-2019-19956
Published: December 24, 2019Last modified: July 22, 2025
Description
xmlParseBalancedChunkMemoryRecover in parser.c in libxml2 before 2.9.10 has a memory leak related to newDoc->oldNs.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack Vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | libxml2 | Not affected (2.10.4-r0) |
| Stream | libxml2 | Not affected (2.11.5-r0) | |
| Hardened Containers | 23 LTS | libxml2 | Not affected (2.10.4-r0) |
| Stream | libxml2 | Not affected (2.11.5-r0) |
References
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00047.html
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00005.html
- https://cert-portal.siemens.com/productcert/pdf/ssa-292794.pdf
- https://gitlab.gnome.org/GNOME/libxml2/commit/5a02583c7e683896d84878bd90641d8d9b0d0549
- https://lists.debian.org/debian-lts-announce/2019/12/msg00032.html
- https://lists.debian.org/debian-lts-announce/2020/09/msg00009.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5R55ZR52RMBX24TQTWHCIWKJVRV6YAWI/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JDPF3AAVKUAKDYFMFKSIQSVVS3EEFPQH/
- https://security.netapp.com/advisory/ntap-20200114-0002/
- https://us-cert.cisa.gov/ics/advisories/icsa-21-103-08
- https://usn.ubuntu.com/4274-1/
- https://www.oracle.com/security-alerts/cpujul2020.html