CVE-2023-3212
MEDIUM severity · CVSS 4.4 · CWE-476
4.4CVSS MEDIUM
Summary
A NULL pointer dereference issue was found in the gfs2 file system in the Linux kernel. It occurs on corrupt gfs2 file systems when the evict code tries to reference the journal descriptor structure after it has been freed and set to NULL. A privileged local user could use this flaw to cause a kernel panic.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredHigh
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Affected products we track (4)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://bugzilla.redhat.com/show_bug.cgi?id=2214348 ↗
Additional information
- NVD record
- https://bugzilla.redhat.com/show_bug.cgi?id=2214348Patch
- https://github.com/torvalds/linux/commit/504a10d9e46bc37b23d0a1ae2f28973c8516e636Patch
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.htmlAdvisory
- https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
- https://security.netapp.com/advisory/ntap-20230929-0005/Advisory
- https://www.debian.org/security/2023/dsa-5448Advisory
- https://www.debian.org/security/2023/dsa-5480Advisory