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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2023-4244

Use-after-free in Linux kernel's netfilter: nf_tables component

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Status
Published
Published
Updated
Assigning organization
Google

Description

A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. Due to a race condition between nf_tables netlink control plane transaction and nft_set element garbage collection, it is possible to underflow the reference counter causing a use-after-free vulnerability. We recommend upgrading past commit 3e91b0ebd994635df2346353322ac51ce84ce6d8.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Kernel

Default version status: unaffected

  • 0.0 to < 4.19.316affected
  • 4.20 to < 5.4.262affected
  • 5.5 to < 5.10.198affected
  • 5.11 to < 5.15.134affected
  • 5.16 to < 6.1.56affected
  • 6.2 to < 6.4.11affected

References