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Fencer Vulns
critical 9.1

CVE-2022-0742 in the critical feed json

Memory leak in ICMP6 in Linux Kernel

published 2022-03-18 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-15809

cvss
9.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
5.0%
EPSS 5.0% chance of exploitation in 30 days, percentile 92%
public exploits
0
none known

Summary

Memory leak in icmp6 implementation in Linux Kernel 5.13+ allows a remote attacker to DoS a host by making it go out-of-memory via icmp6 packets of type 130 or 131. We recommend upgrading past commit 2d3916f3189172d5c69d33065c3c21119fe539fc.

Patch / fix

  • linux linux_kernel 5.15.27, 5.16.13
  • linux Debian 14, Debian 13, Debian 12 5.16.14-1

debian advisories DEBIAN-CVE-2022-0742

  • linux-aws-5.13 Ubuntu 20.04 LTS 5.13.0-1019.21~20.04.1
  • linux-gcp-5.13 Ubuntu 20.04 LTS 5.13.0-1021.25~20.04.1
  • linux-hwe-5.13 Ubuntu 20.04 LTS 5.13.0-37.42~20.04.1
  • linux-oem-5.14 Ubuntu 20.04 LTS 5.14.0-1029.32
  • linux-azure-5.13 Ubuntu 20.04 LTS 5.13.0-1021.24~20.04.1
  • linux-intel-5.13 Ubuntu 20.04 LTS 5.13.0-1010.10
  • linux-oracle-5.13 Ubuntu 20.04 LTS 5.13.0-1025.30~20.04.1
  • linux-intel-iotg-5.15 Ubuntu 20.04 LTS 5.15.0-1008.11~20.04.1

ubuntu advisories UBUNTU-CVE-2022-0742

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 CBL-Mariner 2.0 5.15.32.1-2

azure linux advisories AZL-9094

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-2022-0742 updated cvss 7.5

kernel: bug memory leaks in ICMPv6 handlers

  • 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 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 more Red Hat Enterprise Linux 9 rv, perf, rtla, kernel, bpftool, libperf, +83 more
    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
yes
Technical impact
partial
Assessed
18 mo ago

Exploit prediction

5.04% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C

Affected products

  • Linux Kernel

Classification

Weakness
  • CWE-275 Permission Issues
  • 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.