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1 vulnerability by identd-ng

CVE-2026-43916 (GCVE-0-2026-43916)

Vulnerability from cvelistv5 – Published: 2026-05-12 13:31 – Updated: 2026-05-13 14:38
VLAI
Title
pam_authnft: Heap buffer overflow in NETLINK_SOCK_DIAG reply walker
Summary
pam_authnft is a PAM session module binding nftables firewall rules to authenticated sessions via cgroupv2 inodes. Prior to 0.2.0-alpha, a heap buffer over-read in peer_lookup_tcp (src/peer_lookup.c:134, prior to the fix) allowed a crafted NETLINK_SOCK_DIAG reply to slip past the message-size check, then dereference past the end of the allocation. This vulnerability is fixed in 0.2.0-alpha.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-125 - Out-of-bounds Read
  • CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
References
Impacted products
Vendor Product Version
identd-ng pam_authnft Affected: < 0.2.0-alpha
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