VDB

DEBIAN-CVE-2025-21826

DEBIAN-CVE-2025-21826 PUBLISHED CVSS 5.5 MEDIUM

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: reject mismatching sum of field_len with set key length The field length description provides the length of each separated key field in the concatenation, each field gets rounded up to 32-bits to calculate the pipapo rule width from pipapo_init(). The set key length provides the total size of the key aligned to 32-bits. Register-based arithmetics still allows for combining mismatching set key length and field length description, eg. set key length 10 and field description [ 5, 4 ] leading to pipapo width of 12.

Risk Scores

CVSS 3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Products

VendorProductVersions
Debian:14linux0, 0
Debian:13linux0, 0
Debian:12linux6.1.64-1, 6.1.66-1, 6.1.67-1
Debian:11linux5.10.216-1, 5.10.218-1, 5.10.221-1
Debian:11linux-6.16.1.106-3~deb11u1, 6.1.106-3~deb11u3, 6.1.112-1~deb11u1

Timeline

  • Mar 6, 2025 CVE Published
  • Apr 28, 2026 CVE Updated
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