CVE-2023-3212
MEDIUMCVSS 4.4/10EPSS 0.26%
Last modified
CVE-2023-3212 is a medium-severity vulnerability rated 4.4/10 on the CVSS scale. 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. EPSS estimates a 0.26% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Linux | Linux Kernel | < 6.4 | — |
| Linux | Linux Kernel | 6.4 | Rc1 |
| Fedoraproject | Fedora | 38 | — |
| Redhat | Enterprise Linux | 8.0 | — |
| Redhat | Enterprise Linux | 9.0 | — |
| Debian | Debian Linux | 10.0 | — |
| Debian | Debian Linux | 11.0 | — |
| Debian | Debian Linux | 12.0 | — |
| Netapp | H300s Firmware | All versions | — |
| Netapp | H500s Firmware | All versions | — |
| Netapp | H700s Firmware | All versions | — |
| Netapp | H410s Firmware | All versions | — |
| Netapp | H410c Firmware | All versions | — |
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2214348Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230929-0005/Third Party Advisory
- https://www.debian.org/security/2023/dsa-5448Third Party Advisory
- https://www.debian.org/security/2023/dsa-5480Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2214348Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230929-0005/Third Party Advisory
- https://www.debian.org/security/2023/dsa-5448Third Party Advisory
- https://www.debian.org/security/2023/dsa-5480Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2023-3212?
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.
How severe is CVE-2023-3212?
CVE-2023-3212 has a CVSS score of 4.4/10 (MEDIUM severity). The EPSS model estimates a 0.26% probability of exploitation in the next 30 days.
How do I fix CVE-2023-3212?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2023-3212?
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