CVE-2023-4385

Kernel: jfs: null pointer dereference in dbfree()

CVSS 5.5 MEDIUMEPSS 0.2%CWE-476

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.5EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

16 Aug 2023Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

A NULL pointer dereference flaw was found in dbFree in fs/jfs/jfs_dmap.c in the journaling file system (JFS) in the Linux Kernel. This issue may allow a local attacker to crash the system due to a missing sanity check.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

Red Hat · Red Hat Enterprise Linux 6 Red Hat · Red Hat Enterprise Linux 7 Red Hat · Red Hat Enterprise Linux 8 Red Hat · Red Hat Enterprise Linux 9

References

https://access.redhat.com/security/cve/CVE-2023-4385 https://bugzilla.redhat.com/show_bug.cgi?id=2219272 https://github.com/torvalds/linux/commit/0d4837fdb796f99369cf7691d33de1b856bcaf1f