Allocation of Resources Without Limits or Throttling Affecting libvirt-libs package, versions <11.0.0-150700.4.13.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.19% (9th percentile)

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  • Snyk IDSNYK-SLES157-LIBVIRTLIBS-15076432
  • published24 Jan 2026
  • disclosed23 Jan 2026

Introduced: 23 Jan 2026

CVE-2025-12748  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade SLES:15.7 libvirt-libs to version 11.0.0-150700.4.13.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libvirt-libs package and not the libvirt-libs package as distributed by SLES. See How to fix? for SLES:15.7 relevant fixed versions and status.

A flaw was discovered in libvirt in the XML file processing. More specifically, the parsing of user provided XML files was performed before the ACL checks. A malicious user with limited permissions could exploit this flaw by submitting a specially crafted XML file, causing libvirt to allocate too much memory on the host. The excessive memory consumption could lead to a libvirt process crash on the host, resulting in a denial-of-service condition.

CVSS Base Scores

version 3.1