MEDIUM
CVE-2023-3212
CWE-476Published: June 23, 2023· Updated: Jun 17, 2026
4.4
CVSS v3.1
Official 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.
Technical Analysis
CVE-2023-3212 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in availability disruption (denial of service), with a CVSS base score of 4.4.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.High
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Affected Vendors & Products
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (14)
→
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
Quick Facts
CVE IDCVE-2023-3212
CVSS Score4.4 / 10
SeverityMEDIUM
WeaknessCWE-476
CISA KEVNo
Affected5 vendor(s)
PublishedJun 23, 2023
Related CVEs (CWE-476)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-3212 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.