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CVE-2023-42754

5.5 medium Modified
NVD · CVE.org

A NULL pointer dereference flaw was found in the Linux kernel ipv4 stack. The socket buffer (skb) was assumed to be associated with a device before calling __ip_options_compile, which is not always the case if the skb is re-routed by ipvs. This issue may allow a local user with CAP_NET_ADMIN privileges to crash the system.

Fix

Patch, vendor advisory and mitigation references on NVD 6

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 5.5 · linux, redhat, fedoraprojectNVD modified 2026-10-15 00:16

Affected (CPE criteria) 8

  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.6:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.6:rc2:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
  • cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
  • cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
  • cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*

References 19