Description
A flaw was found in Glib's content type parsing logic. This buffer underflow vulnerability occurs because the length of a header line is stored in a signed integer, which can lead to integer wraparound for very large inputs. This results in pointer underflow and out-of-bounds memory access. Exploitation requires a local user to install or process a specially crafted treemagic file, which can lead to local denial of service or application instability.
Problem types
Product status
Timeline
| 2026-01-27: | Reported to Red Hat. |
| 2026-01-27: | Made public. |
Credits
Red Hat would like to thank treeplus for reporting this issue.
References
access.redhat.com/security/cve/CVE-2026-1485
bugzilla.redhat.com/show_bug.cgi?id=2433325 (RHBZ#2433325)