Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
None
Privileges Required
High
Attack Vector
Local
0

CVE-2023-3212

Disclosure Date: June 23, 2023 •
CVE-2023-3212 CVSS v3 Base Score: 4.4
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

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.

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CVSS V3 Severity and Metrics
Base Score:
4.4 Medium
Impact Score:
3.6
Exploitability Score:
0.8
Vector:
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
High
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
None
Integrity (I):
None
Availability (A):
High

General Information

Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
Linux kernel (gfs2 file system) Fixed in kernel 6.4-rc2
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown

Vendors

  • debian,
  • fedoraproject,
  • linux,
  • netapp,
  • redhat

Products

  • debian linux 10.0,
  • debian linux 11.0,
  • debian linux 12.0,
  • enterprise linux 8.0,
  • enterprise linux 9.0,
  • fedora 38,
  • h300s firmware -,
  • h410c firmware -,
  • h410s firmware -,
  • h500s firmware -,
  • h700s firmware -,
  • linux kernel,
  • linux kernel 6.4
Technical Analysis