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A use-after-free vulnerability was found in the Linux kernel's netfilter subsystem in net/netfilter/nf_tables_api.c. Mishandled error handling with NFT_MSG_NEWRULE makes it possible to use a danglin…

High CVSS 7.8
CVECVE-2023-3390
First seen2026-07-22 12:30 UTC
Disclosed2023-06-28 21:15 UTC
Last updated2026-07-22 12:30 UTC
Channel statusauto

Summary

A use-after-free vulnerability was found in the Linux kernel's netfilter subsystem in net/netfilter/nf_tables_api.c. Mishandled error handling with NFT_MSG_NEWRULE makes it possible to use a dangling pointer in the same transaction causing a use-after-free vulnerability. This flaw allows a local attacker with user access to cause a privilege escalation issue. We recommend upgrading past commit 1240eb93f0616b21c675416516ff3d74798fdc97

In-depth triage · Auto channel

No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).

Affected products

  • :
  • :
Lint boundary warnings (4)

The following non-blocking warnings were raised during the lint phase of this triage (e.g. reference URLs not yet on the allowlist). They do not affect entry usability and are disclosed for transparency (see DR-002).

  • REF_URL_NOT_ALLOWLISTED url not in allowlist: https://kernel.dance/1240eb93f0616b21c675416516ff3d74798fdc97
  • REF_URL_NOT_ALLOWLISTED url not in allowlist: https://packetstorm.news/tos/aHR0cHM6Ly9wYWNrZXRzdG9ybS5uZXdzL2ZpbGVzLzE3NDU3Ny9LZXJuZWwtTGl2ZS1QYXRjaC1TZWN1cml0eS1Ob3RpY2UtTFNOLTAwOTctMS5odG1sIDE3ODQ3MjE0NzIgODFlMjk3ZjBmM2FiMTIwOTI5Nzg0ZmRlNGM2NWNjNjBhMThhMzBiOGE5NjQ0YzQ0NTFhMzJlZjhiNTk1ZTk2Yg==
  • REF_URL_NOT_ALLOWLISTED url not in allowlist: http://packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSN-0097-1.html
  • REF_URL_NOT_ALLOWLISTED url not in allowlist: https://kernel.dance/1240eb93f0616b21c675416516ff3d74798fdc97

Sources

  • NVD DATABASE

Original Links

Timeline

  1. nvd_ingest NVD