Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Not supplied / Not supplied | affected 0 through 11.9.0 |
| Red Hat / Red Hat Enterprise Linux 10 | unaffected 0:11.10.0-12.el10_2 before * |
| Red Hat / Red Hat Enterprise Linux 9 | unaffected 0:11.10.0-12.el9_8 before * |
| Red Hat / Red Hat Enterprise Linux 6 | unknown |
| Red Hat / Red Hat Enterprise Linux 7 | unknown |
| Red Hat / Red Hat Enterprise Linux 8 | affected |
CWE
CWE-770
References
- https://access.redhat.com/errata/RHSA-2026:18326
- https://access.redhat.com/errata/RHSA-2026:18748
- https://access.redhat.com/security/cve/CVE-2025-12748
- https://bugzilla.redhat.com/show_bug.cgi?id=2413801
ADP enrichment
No English description supplied.
No references supplied.