CVE-2022-4378

HIGH

Linux Kernel - Memory Corruption

Title source: llm

Description

A stack overflow flaw was found in the Linux kernel's SYSCTL subsystem in how a user changes certain kernel parameters and variables. This flaw allows a local user to crash or potentially escalate their privileges on the system.

References (5)

[Issue Tracking, Third Party Advisory] https://bugzilla.redhat.com/show_bug.cgi?id=2152548

[Vendor Advisory] https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/queue-6.0/proc-avoid-integer-type-confusion-in-get_proc_long.patch

[Vendor Advisory] https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/queue-6.0/proc-proc_skip_spaces-shouldn-t-think-it-is-working-on-c-strings.patch

[Mailing List, Third Party Advisory] https://seclists.org/oss-sec/2022/q4/178

[Exploit, Third Party Advisory] http://packetstormsecurity.com/files/171289/Kernel-Live-Patch-Security-Notice-LNS-0092-1.html

Scores

CVSS v3 7.8

EPSS 0.0003

EPSS Percentile 8.8%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Classification

CWE

CWE-131 CWE-787

Status published

Affected Products (1)

linux/linux_kernel < 4.9.337

Timeline

Published Jan 05, 2023

Tracked Since Feb 18, 2026