Skip to content
Fencer Vulns
critical 9.8

CVE-2024-57947 in the critical feed json

netfilter: nf_set_pipapo: fix initial map fill

published 2025-01-23 21 mo ago modified 2026-08-05 3 mo ago also EUVD-2024-53850

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 38%
public exploits
0
none known

Summary

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nf_set_pipapo: fix initial map fill

The initial buffer has to be inited to all-ones, but it must restrict it to the size of the first field, not the total field size.

After each round in the map search step, the result and the fill map are swapped, so if we have a set where f->bsize of the first element is smaller than m->bsize_max, those one-bits are leaked into future rounds result map.

This makes pipapo find an incorrect matching results for sets where first field size is not the largest.

Followup patch adds a test case to nft_concat_range.sh selftest script.

Thanks to Stefano Brivio for pointing out that we need to zero out the remainder explicitly, only correcting memset() argument isn't enough.

Patch / fix

  • Linux Linux 5.10.247, 5.15.165, 6.1.103, 6.6.44, 6.10.3, 6.11
  • linux Debian 12 6.1.106-1
  • linux Debian 14, Debian 13 6.10.3-1

debian advisories DEBIAN-CVE-2024-57947

  • linux Ubuntu 22.04 LTS 5.15.0-125.135
  • linux Ubuntu 24.04 LTS 6.8.0-50.51
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1072.78
  • linux-aws Ubuntu 24.04 LTS 6.8.0-1020.22
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1071.79
  • linux-gcp Ubuntu 24.04 LTS 6.8.0-1019.21
  • linux-gke Ubuntu 22.04 LTS 5.15.0-1069.75
  • linux-gke Ubuntu 24.04 LTS 6.8.0-1015.19

ubuntu advisories UBUNTU-CVE-2024-57947

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kernel RHEL 9 5.14.0-503.22.1.el9_5
  • rv RHEL 9 5.14.0-503.22.1.el9_5
  • perf RHEL 9 5.14.0-503.22.1.el9_5
  • rtla RHEL 9 5.14.0-503.22.1.el9_5
  • bpftool RHEL 9 7.4.0-503.22.1.el9_5
  • libperf RHEL 9 5.14.0-503.22.1.el9_5
  • kernel-rt RHEL 9 5.14.0-503.22.1.el9_5
  • kernel-64k RHEL 9 5.14.0-503.22.1.el9_5

red hat advisories RHSA-2025:0578

  • kernel-64kb SLES 15 SP5-LTSS, SLE High Performance Computing 15 SP5-LTSS, SLE High Performance Computing 15 SP5-ESPOS 5.14.21-150500.55.121.2
  • kernel-syms SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE High Performance Computing 15 SP5-LTSS +1 more 5.14.21-150500.55.121.1
  • kernel-source SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE Micro 5.5 +2 more 5.14.21-150500.55.121.2
  • kernel-default SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE Micro 5.5 +3 more 5.14.21-150500.55.121.2
  • kernel-obs-build SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE High Performance Computing 15 SP5-LTSS +1 more 5.14.21-150500.55.121.1
  • kernel-default-base SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE Micro 5.5 +2 more 5.14.21-150500.55.121.2.150500.6.57.2
  • kernel-rt Real Time Module 15 SP6, openSUSE Leap 15.6 6.4.0-150600.10.49.1
  • kernel-syms-rt Real Time Module 15 SP6, openSUSE Leap 15.6 6.4.0-150600.10.49.1

suse advisories SUSE-SU-2025:03344-1SUSE-SU-2025:03023-1SUSE-SU-2025:03011-1SUSE-SU-2025:02997-1SUSE-SU-2025:02996-1SUSE-SU-2025:20586-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-57947 updated cvss 7.1

kernel: netfilter: nf_set_pipapo: fix initial map fill

  • Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 more
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 9 kernel-rt, kernel-rt-kvm, kernel-rt-core, kernel-rt-modules, kernel-rt-debug-kvm, kernel-rt-debug-core, +12 more
    affected: workaround, no fix available
  • Red Hat CodeReady Linux Builder (v. 9) libperf 5.14.0-503.22.1.el9_5, kernel-debuginfo-common-s390x 5.14.0-503.22.1.el9_5, kernel-debuginfo-common-x86_64 5.14.0-503.22.1.el9_5, kernel-debuginfo-common-aarch64 5.14.0-503.22.1.el9_5, kernel-debuginfo-common-ppc64le 5.14.0-503.22.1.el9_5 Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-503.22.1.el9_5, perf 5.14.0-503.22.1.el9_5, rtla 5.14.0-503.22.1.el9_5, kernel-devel-matched 5.14.0-503.22.1.el9_5, kernel-64k-devel-matched 5.14.0-503.22.1.el9_5, kernel-debug-devel-matched 5.14.0-503.22.1.el9_5, +6 more Red Hat Enterprise Linux BaseOS (v. 9) bpftool 7.4.0-503.22.1.el9_5, kernel 5.14.0-503.22.1.el9_5, kernel-64k 5.14.0-503.22.1.el9_5, kernel-core 5.14.0-503.22.1.el9_5, kernel-tools 5.14.0-503.22.1.el9_5, python3-perf 5.14.0-503.22.1.el9_5, +29 more Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-503.22.1.el9_5, kernel-rt-core 5.14.0-503.22.1.el9_5, kernel-rt-modules 5.14.0-503.22.1.el9_5, kernel-rt-debug-core 5.14.0-503.22.1.el9_5, kernel-rt-modules-core 5.14.0-503.22.1.el9_5, kernel-rt-debug-modules 5.14.0-503.22.1.el9_5, +4 more Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-503.22.1.el9_5, kernel-rt-kvm 5.14.0-503.22.1.el9_5, kernel-rt-core 5.14.0-503.22.1.el9_5, kernel-rt-modules 5.14.0-503.22.1.el9_5, kernel-rt-debug-kvm 5.14.0-503.22.1.el9_5, kernel-rt-debug-core 5.14.0-503.22.1.el9_5, +6 more
    fixed: vendor fix RHSA-2025:0578
  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise Linux 10 kernel
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.44% chance of exploitation in the next 30 days, higher than 38% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 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

  • Linux Linux

Classification

Weakness
  • CWE-401 Missing Release of Memory after Effective Lifetime
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.