VDB
DEBIAN-CVE-2026-23403
DEBIAN-CVE-2026-23403
PUBLISHED
CVSS 5.5 MEDIUM
In the Linux kernel, the following vulnerability has been resolved: apparmor: fix memory leak in verify_header The function sets `*ns = NULL` on every call, leaking the namespace string allocated in previous iterations when multiple profiles are unpacked. This also breaks namespace consistency checking since *ns is always NULL when the comparison is made. Remove the incorrect assignment. The caller (aa_unpack) initializes *ns to NULL once before the loop, which is sufficient.
Risk Scores
CVSS v3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | linux | 0, 6.12.38-1, 6.12.41-1 |
| Debian:11 | linux | 5.10.92-2, 5.10.103-1, 0 |
| Debian:13 | linux | 6.12.43-1, 6.12.43-1, 6.12.48-1 |
| Debian:12 | linux | 6.1.85-1, 6.1.90-1, 6.1.90-1~bpo11+1 |
Timeline
- Apr 1, 2026 CVE Published
- Apr 28, 2026 CVE Updated