CVE-2022-42720 — Use After Free in Kernel

CWE-416 — Use After Free25 documents12 sources
Severity
7.8HIGHNVD
OSV8.1OSV7.0OSV6.6OSV5.5
EPSS
0.6%
top 30.55%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
9
Linux KernelDebian LinuxDebian Linux+6 more
Timeline
PublishedOct 14
Latest updateFeb 14

Description

Various refcounting bugs in the multi-BSS handling in the mac80211 stack in the Linux kernel 5.1 through 5.19.x before 5.19.16 could be used by local attackers (able to inject WLAN frames) to trigger use-after-free conditions to potentially execute code.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages9 packages

▶NVDlinux/linux_kernel5.1 — 5.4.218+4
▶Debianlinux/linux_kernel< 5.10.149-1+3
▶Ubuntulinux/linux_kernel< 5.4.0-131.147+3
▶debiandebian/linux< linux 6.0.2-1 (bookworm)

Also affects: Debian Linux 10.0, 11.0, Fedora 36, 37

Patches

Patch: bugzilla.suse.com ↗Patch: git.kernel.org ↗Patch: bugzilla.suse.com ↗

🔴Vulnerability Details

10
OSV
CVE-2022-42720: In multiple functions of scan↗2023-01-01
▶
OSV
linux-azure-fde vulnerabilities↗2022-11-30
▶
OSV
Kernel Live Patch Security Notice↗2022-11-16
▶
OSV
backport-iwlwifi-dkms vulnerabilities↗2022-11-01
▶
OSV
linux-oem-5.17 vulnerabilities↗2022-10-19
▶

📋Vendor Advisories

14
Palo Alto
PAN-SA-2024-0001 Informational Bulletin: Impact of OSS CVEs in PAN-OS↗2024-02-14
▶
CISA ICS
Siemens SIMATIC S7-1500 TM MFP Linux Kernel↗2023-06-15
▶
Chrome
Long Term Support Channel Update for ChromeOS: CVE-2022-42720↗2023-01-05
▶
Android
CVE-2022-42720: WLAN↗2023-01-01
▶
Ubuntu
Linux kernel (Azure CVM) vulnerabilities↗2022-11-30
▶