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Fencer Vulns
high 7.5

CVE-2024-35857 json

icmp: prevent possible NULL dereferences from icmp_build_probe()

published 2024-05-17 2 y ago modified 2026-08-05 3 mo ago also EUVD-2024-35575

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 62%
public exploits
0
none known

Summary

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

icmp: prevent possible NULL dereferences from icmp_build_probe()

First problem is a double call to __in_dev_get_rcu(), because the second one could return NULL.

if (__in_dev_get_rcu(dev) && __in_dev_get_rcu(dev)->ifa_list)

Second problem is a read from dev->ip6_ptr with no NULL check:

if (!list_empty(&rcu_dereference(dev->ip6_ptr)->addr_list))

Use the correct RCU API to fix these.

v2: add missing include <net/addrconf.h>

Patch / fix

  • Linux Linux 5.15.158, 6.1.90, 6.6.30, 6.8.9, 6.9
  • linux Debian 12 6.1.90-1
  • linux Debian 14, Debian 13 6.8.9-1

debian advisories DEBIAN-CVE-2024-35857

  • linux Ubuntu 22.04 LTS 5.15.0-116.126
  • linux Ubuntu 24.04 LTS 6.8.0-40.40
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1065.71
  • linux-aws Ubuntu 24.04 LTS 6.8.0-1013.14
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1064.72
  • linux-gcp Ubuntu 24.04 LTS 6.8.0-1012.13
  • linux-gke Ubuntu 22.04 LTS 5.15.0-1062.68
  • linux-gke Ubuntu 24.04 LTS 6.8.0-1008.11

ubuntu advisories UBUNTU-CVE-2024-35857

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 5.14.0-427.28.1.el9_4
  • rv RHEL 9 5.14.0-427.28.1.el9_4
  • perf RHEL 9 5.14.0-427.28.1.el9_4
  • rtla RHEL 9 5.14.0-427.28.1.el9_4
  • bpftool RHEL 9 7.3.0-427.28.1.el9_4
  • libperf RHEL 9 5.14.0-427.28.1.el9_4
  • kernel-rt RHEL 9 5.14.0-427.28.1.el9_4
  • kernel-64k RHEL 9 5.14.0-427.28.1.el9_4

red hat advisories RHSA-2024:4554RHSA-2024:4533RHSA-2024:4928

  • kernel-rt Linux Micro 6.0 6.4.0-9.1
  • kernel-source-rt Linux Micro 6.0 6.4.0-9.1
  • kernel-source Linux Micro 6.0 6.4.0-18.1
  • kernel-default Linux Micro 6.0 6.4.0-18.1
  • kernel-kvmsmall Linux Micro 6.0 6.4.0-18.1
  • kernel-default-base Linux Micro 6.0 6.4.0-17.1.1.51
  • kernel-rt Real Time Module 15 SP6, openSUSE Leap 15.6 6.4.0-150600.10.5.1
  • kernel-syms-rt Real Time Module 15 SP6, openSUSE Leap 15.6 6.4.0-150600.10.5.1

suse advisories SUSE-SU-2025:20028-1SUSE-SU-2025:20008-1SUSE-SU-2024:2973-1SUSE-SU-2024:2939-1SUSE-SU-2024:2896-1SUSE-SU-2024:2571-1

  • kernel AlmaLinux 9 5.14.0-427.28.1.el9_4
  • rv AlmaLinux 9 5.14.0-427.28.1.el9_4
  • perf AlmaLinux 9 5.14.0-427.28.1.el9_4
  • rtla AlmaLinux 9 5.14.0-427.28.1.el9_4
  • bpftool AlmaLinux 9 7.3.0-427.28.1.el9_4
  • libperf AlmaLinux 9 5.14.0-427.28.1.el9_4
  • kernel-rt AlmaLinux 9 5.14.0-427.28.1.el9_4
  • kernel-64k AlmaLinux 9 5.14.0-427.28.1.el9_4

almalinux advisories ALSA-2024:4928

  • kernel Rocky Linux 9 5.14.0-427.28.1.el9_4.cloud.1.0
  • kernel Rocky Linux 9 5.14.0-427.28.1.el9_4

rocky linux advisories RXSA-2024:4928RLSA-2024:4928

  • hyperv-daemons Azure Linux 3.0 6.6.35.1-1

azure linux advisories AZL-42117

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

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-2024-35857 updated cvss 5.3

kernel: icmp: prevent possible NULL dereferences from icmp_build_probe()

  • 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
    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 EUS (v.9.2) kernel-debuginfo-common-s390x 5.14.0-284.73.1.el9_2, kernel-debuginfo-common-x86_64 5.14.0-284.73.1.el9_2, kernel-debuginfo-common-aarch64 5.14.0-284.73.1.el9_2, kernel-debuginfo-common-ppc64le 5.14.0-284.73.1.el9_2
    fixed: vendor fix RHSA-2024:4533
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-427.28.1.el9_4, perf 5.14.0-427.28.1.el9_4, rtla 5.14.0-427.28.1.el9_4, kernel-devel-matched 5.14.0-427.28.1.el9_4, kernel-64k-devel-matched 5.14.0-427.28.1.el9_4, kernel-debug-devel-matched 5.14.0-427.28.1.el9_4, +6 more
    fixed: vendor fix RHSA-2024:4928
  • Red Hat Enterprise Linux AppStream EUS (v.9.2) perf 5.14.0-284.73.1.el9_2, rtla 5.14.0-284.73.1.el9_2, kernel-devel-matched 5.14.0-284.73.1.el9_2, kernel-64k-devel-matched 5.14.0-284.73.1.el9_2, kernel-debug-devel-matched 5.14.0-284.73.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.73.1.el9_2, +5 more
    fixed: vendor fix RHSA-2024:4533
  • Red Hat Enterprise Linux BaseOS (v. 9) bpftool 7.3.0-427.28.1.el9_4, kernel 5.14.0-427.28.1.el9_4, kernel-64k 5.14.0-427.28.1.el9_4, kernel-core 5.14.0-427.28.1.el9_4, kernel-tools 5.14.0-427.28.1.el9_4, python3-perf 5.14.0-427.28.1.el9_4, +28 more
    fixed: vendor fix RHSA-2024:4928
  • Red Hat Enterprise Linux BaseOS EUS (v.9.2) bpftool 7.0.0-284.73.1.el9_2, kernel 5.14.0-284.73.1.el9_2, kernel-64k 5.14.0-284.73.1.el9_2, kernel-core 5.14.0-284.73.1.el9_2, kernel-tools 5.14.0-284.73.1.el9_2, python3-perf 5.14.0-284.73.1.el9_2, +28 more
    fixed: vendor fix RHSA-2024:4533
  • Red Hat Enterprise Linux CRB (v. 9) libperf 5.14.0-427.28.1.el9_4, kernel-debuginfo-common-s390x 5.14.0-427.28.1.el9_4, kernel-debuginfo-common-x86_64 5.14.0-427.28.1.el9_4, kernel-debuginfo-common-aarch64 5.14.0-427.28.1.el9_4, kernel-debuginfo-common-ppc64le 5.14.0-427.28.1.el9_4 Red Hat Enterprise Linux NFV (v. 9) kernel-rt 5.14.0-427.28.1.el9_4, kernel-rt-kvm 5.14.0-427.28.1.el9_4, kernel-rt-core 5.14.0-427.28.1.el9_4, kernel-rt-modules 5.14.0-427.28.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.28.1.el9_4, kernel-rt-debug-core 5.14.0-427.28.1.el9_4, +6 more
    fixed: vendor fix RHSA-2024:4928
show 3 more
  • Red Hat Enterprise Linux Real Time EUS (v.9.2) kernel-rt 5.14.0-284.73.1.rt14.358.el9_2, kernel-rt-core 5.14.0-284.73.1.rt14.358.el9_2, kernel-rt-modules 5.14.0-284.73.1.rt14.358.el9_2, kernel-rt-debug-core 5.14.0-284.73.1.rt14.358.el9_2, kernel-rt-modules-core 5.14.0-284.73.1.rt14.358.el9_2, kernel-rt-debug-modules 5.14.0-284.73.1.rt14.358.el9_2, +4 more Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2) kernel-rt 5.14.0-284.73.1.rt14.358.el9_2, kernel-rt-kvm 5.14.0-284.73.1.rt14.358.el9_2, kernel-rt-core 5.14.0-284.73.1.rt14.358.el9_2, kernel-rt-modules 5.14.0-284.73.1.rt14.358.el9_2, kernel-rt-debug-kvm 5.14.0-284.73.1.rt14.358.el9_2, kernel-rt-debug-core 5.14.0-284.73.1.rt14.358.el9_2, +6 more
    fixed: vendor fix RHSA-2024:4554
  • Red Hat Enterprise Linux RT (v. 9) kernel-rt 5.14.0-427.28.1.el9_4, kernel-rt-core 5.14.0-427.28.1.el9_4, kernel-rt-modules 5.14.0-427.28.1.el9_4, kernel-rt-debug-core 5.14.0-427.28.1.el9_4, kernel-rt-modules-core 5.14.0-427.28.1.el9_4, kernel-rt-debug-modules 5.14.0-427.28.1.el9_4, +4 more
    fixed: vendor fix RHSA-2024:4928
  • Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 more Red Hat Enterprise Linux AppStream EUS (v.9.2) kernel-doc 5.14.0-284.73.1.el9_2
    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

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.98% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA ADP 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected products

  • Linux Linux

Classification

Weakness
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.