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CVE-2022-4378

Date: January 4, 2023

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.

Language: C

Severity Score

Related Resources (9)

https://nvd.nist.gov/vuln/detail/CVE-2022-4378
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
https://security-tracker.debian.org/tracker/CVE-2022-4378
https://access.redhat.com/security/cve/CVE-2022-4378
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
https://bugzilla.redhat.com/show_bug.cgi?id=2152548
https://seclists.org/oss-sec/2022/q4/178
http://packetstormsecurity.com/files/171289/Kernel-Live-Patch-Security-Notice-LNS-0092-1.html
https://www.mend.io/vulnerability-database/CVE-2022-4378

Severity Score

Weakness Type (CWE)

Out-of-bounds Write

CWE-787

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CWE-120

Incorrect Calculation of Buffer Size

CWE-131

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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