CVE-2022-4378

kernel: stack overflow in do_proc_dointvec and proc_skip_spaces

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

*Credits: N/A

CVSS Scores

NISTv3.1 7.8

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-12-09 CVE Reserved
2023-01-05 CVE Published
2023-03-08 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-131: Incorrect Calculation of Buffer Size
CWE-787: Out-of-bounds Write

CAPEC

References (6)

URL	Tag	Source
http://packetstormsecurity.com/files/171289/Kernel-Live-Patch-Security-Notice-LNS-0092-1.html
https://seclists.org/oss-sec/2022/q4/178	Mailing List

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://bugzilla.redhat.com/show_bug.cgi?id=2152548	2023-06-06
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	2023-11-07
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	2023-11-07
https://access.redhat.com/security/cve/CVE-2022-4378	2023-06-06

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.9.0 <= 4.9.337 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.9.0 <= 4.9.337"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.14.0 <= 4.14.302 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.14.0 <= 4.14.302"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.19.0 <= 4.19.269 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.19.0 <= 4.19.269"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.4.0 <= 5.4.228 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.4.0 <= 5.4.228"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.10.0 <= 5.10.162 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.10.0 <= 5.10.162"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.15.0 <= 5.15.86 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.15.0 <= 5.15.86"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 6.0.0 <= 6.0.11 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.0.0 <= 6.0.11"		-		Affected