Description (CNA)
A flaw was found in libxml2. A local user or an attacker providing a specially crafted XML catalog can trigger a NULL pointer dereference during XML catalog parsing. This occurs when a `nextCatalog` element lacks its mandatory `catalog` attribute, leading to the application crashing and causing a Denial of Service (DoS).
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Red Hat / Red Hat Hardened Images | unaffected 2.15.3-0.1.3.hum1 before * |
| Red Hat / Red Hat Enterprise Linux 10 | unaffected |
| Red Hat / Red Hat Enterprise Linux 10 | affected |
| Red Hat / Red Hat Enterprise Linux 6 | unknown |
| Red Hat / Red Hat Enterprise Linux 7 | unknown |
| Red Hat / Red Hat Enterprise Linux 8 | affected |
| Red Hat / Red Hat Enterprise Linux 8 | affected |
| Red Hat / Red Hat Enterprise Linux 8 | affected |
| Red Hat / Red Hat Enterprise Linux 9 | unaffected |
| Red Hat / Red Hat Enterprise Linux 9 | affected |
| Red Hat / Red Hat Hardened Images | unaffected |
| Red Hat / Red Hat OpenShift Container Platform 4 | affected |
| Red Hat / Red Hat OpenShift Container Platform 4 | affected |
| Red Hat / Red Hat OpenShift Container Platform 4 | affected |
CWE
CWE-476
References
- https://access.redhat.com/errata/RHSA-2026:57604
- https://access.redhat.com/security/cve/CVE-2026-76781
- https://bugzilla.redhat.com/show_bug.cgi?id=2519776
- https://gitlab.gnome.org/GNOME/libxml2/-/commit/c6324894
- https://gitlab.gnome.org/GNOME/libxml2/-/merge_requests/442
ADP enrichment
No English description supplied.
No references supplied.