CVE-2023-4385

low-risk

Published 2023-08-16

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.

Do I need to act?

0.01% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 5.5/10 Medium

LOCAL / LOW complexity

Affected Products (1)

Linux Kernel

Affected Vendors

Linux

References (6)

Third Party Advisory https://access.redhat.com/security/cve/CVE-2023-4385

Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=2219272

Patch https://github.com/torvalds/linux/commit/0d4837fdb796f99369cf7691d33de1b856bcaf1...

Third Party Advisory https://access.redhat.com/security/cve/CVE-2023-4385

Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=2219272

Patch https://github.com/torvalds/linux/commit/0d4837fdb796f99369cf7691d33de1b856bcaf1...

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low-risk

Severity 18/34 · Moderate

Exploitability 0/34 · Minimal

Exposure 5/34 · Minimal