CVE-2022-41222 — Use After Free in Kernel

CWE-416 — Use After Free17 documents9 sources
Severity
7.0HIGHNVD
EPSS
0.0%
top 94.94%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Linux KernelCanonical Ubuntu LinuxDebian Linux+1 more
Timeline
PublishedSep 21
Latest updateMar 7

Description

mm/mremap.c in the Linux kernel before 5.13.3 has a use-after-free via a stale TLB because an rmap lock is not held during a PUD move.

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.0 | Impact: 5.9

Affected Packages4 packages

▶NVDlinux/linux_kernel5.0 — 5.4.211+3
▶Debianlinux/linux_kernel< 5.10.140-1+3
▶Ubuntulinux/linux_kernel< 5.4.0-132.148+1

Also affects: Debian Linux 10.0, Ubuntu Linux 18.04, 20.04, 22.04

Patches

Patch: packetstormsecurity.com ↗Patch: bugs.chromium.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

7
OSV
Kernel Live Patch Security Notice↗2023-02-14
▶
OSV
CVE-2022-41222: In move_page_tables of mremap↗2023-02-01
▶
OSV
linux-gcp-5.4 vulnerabilities↗2022-11-29
▶
OSV
linux-azure-fde, linux-gke, linux-gkeop, linux-raspi-5.4 vulnerabilities↗2022-11-18
▶
GHSA
GHSA-jfpq-w2g4-wcpm: mm/mremap↗2022-09-22
▶

📋Vendor Advisories

9
Red Hat
kpatch: mm/mremap.c: incomplete fix for CVE-2022-41222↗2023-03-07
▶
Ubuntu
Kernel Live Patch Security Notice↗2023-02-14
▶
Android
CVE-2022-41222: Kernel memory subsystem↗2023-02-01
▶
Ubuntu
Linux kernel (GCP) vulnerabilities↗2022-11-29
▶
Ubuntu
Linux kernel vulnerabilities↗2022-11-18
▶
CVE-2022-41222 — Use After Free in Linux Kernel | cvebase