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Fencer Vulns
high 8.8

CVE-2022-42719 json

A use-after-free in the mac80211 stack when parsing a multi-BSSID element in the Linux kernel 5.2 through 5.19.x before 5.19.16 could be us…

published 2022-10-13 4 y ago modified 2026-10-14 25 d ago also EUVD-2022-45785

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.4%
EPSS 1.4% chance of exploitation in 30 days, percentile 71%
public exploits
0
none known

Summary

A use-after-free in the mac80211 stack when parsing a multi-BSSID element in the Linux kernel 5.2 through 5.19.x before 5.19.16 could be used by attackers (able to inject WLAN frames) to crash the kernel and potentially execute code.

Patch / fix

  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem V1.1
  • linux Debian 14, Debian 13, Debian 12 6.0.2-1

debian advisories DEBIAN-CVE-2022-42719

  • linux Ubuntu 20.04 LTS 5.4.0-132.148
  • linux Ubuntu 22.04 LTS 5.15.0-52.58
  • linux-aws Ubuntu 20.04 LTS 5.4.0-1089.97
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1022.26
  • linux-gcp Ubuntu 20.04 LTS 5.4.0-1093.102
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1021.28
  • linux-gke Ubuntu 20.04 LTS 5.4.0-1087.94
  • linux-gke Ubuntu 22.04 LTS 5.15.0-1019.23

ubuntu advisories UBUNTU-CVE-2022-42719

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-rt Real Time Module 15 SP4, openSUSE Leap 15.4 5.14.21-150400.15.5.1
  • kernel-syms-rt Real Time Module 15 SP4, openSUSE Leap 15.4 5.14.21-150400.15.5.1
  • kernel-rt_debug Real Time Module 15 SP4, openSUSE Leap 15.4 5.14.21-150400.15.5.1
  • kernel-source-rt Real Time Module 15 SP4, openSUSE Leap 15.4 5.14.21-150400.15.5.1
  • kernel-azure SLE Module for Public Cloud 15 SP4, openSUSE Leap 15.4 5.14.21-150400.14.21.2
  • kernel-syms-azure SLE Module for Public Cloud 15 SP4, openSUSE Leap 15.4 5.14.21-150400.14.21.1
  • kernel-source-azure SLE Module for Public Cloud 15 SP4, openSUSE Leap 15.4 5.14.21-150400.14.21.1
  • kernel-azure SLE Module for Public Cloud 15 SP3, openSUSE Leap 15.3 5.3.18-150300.38.83.1

suse advisories SUSE-SU-2022:4617-1SUSE-SU-2022:3998-1SUSE-SU-2022:3897-1SUSE-SU-2022:3844-1SUSE-SU-2022:3809-1SUSE-SU-2022:3775-1

  • kernel-source openSUSE Tumbleweed 6.0.3-1.1
  • kernel-source openSUSE Tumbleweed 6.6.17-1.1

opensuse advisories openSUSE-SU-2024:12437-1openSUSE-SU-2024:13704-1

  • linux-lts Alpine 3.23, Alpine 3.22, Alpine 3.21 +6 more 5.15.74-r0

alpine advisories ALPINE-CVE-2022-42719

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kernel CBL-Mariner 2.0 5.15.74.1-3

azure linux advisories AZL-11138

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

  • linux-hardened Arch Linux 5.19.15.hardened2-1
  • linux Arch Linux 6.0.1.arch2-1
  • linux-lts Arch Linux 5.15.73-3
  • linux-zen Arch Linux 6.0.1.zen2-1

arch linux advisories AVG-2800AVG-2801AVG-2802AVG-2803

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-2022-42719 updated cvss 7.3

kernel: A use-after-free problem observed in multi-BSSID element when parsing

  • 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 ICSA-23-166-11 updated cvss 8.8

Siemens SIMATIC S7-1500 TM MFP Linux Kernel

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
17 mo ago

Exploit prediction

1.35% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • openwall.com http://www.openwall.com/lists/oss-security/2022/10/13/5 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 8.8 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 8.8 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 8.8 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem

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.