CVE-2023-28327

5.5 mediumEPSS 0.2%

Medium (5.5). EPSS 0.2% chance of exploitation in the next 30 days.

A NULL pointer dereference flaw was found in the UNIX protocol in net/unix/diag.c In unix_diag_get_exact in the Linux Kernel. The newly allocated skb does not have sk, leading to a NULL pointer. This flaw allows a local user to crash or potentially cause a denial of service.

Severity

CVSS 3.1

5.5 medium

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

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 8% of CVEs (scores of 2026-10-31)
CWE: CWE-476
Published: 2023-04-19
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

linux:linux_kernel
redhat:enterprise_linux

References

https://bugzilla.redhat.com/show_bug.cgi?id=2177382
https://bugzilla.redhat.com/show_bug.cgi?id=2177382

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