CVE-2023-3567

Kernel: use after free in vcs_read in drivers/tty/vt/vc_screen.c due to race

Severity Score

7.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A use-after-free flaw was found in vcs_read in drivers/tty/vt/vc_screen.c in vc_screen in the Linux Kernel. This issue may allow an attacker with local user access to cause a system crash or leak internal kernel information.

*Credits: N/A

CVSS Scores

NISTv3.1 7.1

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2023-07-09 CVE Reserved
2023-07-24 CVE Published
2024-09-13 CVE Updated
2024-09-14 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-416: Use After Free

CAPEC

References (14)

URL	Tag	Source
http://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSN-0098-1.html	Third Party Advisory
http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html

URL	Date	SRC

URL	Date	SRC
https://www.spinics.net/lists/stable-commits/msg285184.html	2024-05-22

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2024:0412	2024-05-22
https://access.redhat.com/errata/RHSA-2024:0431	2024-05-22
https://access.redhat.com/errata/RHSA-2024:0432	2024-05-22
https://access.redhat.com/errata/RHSA-2024:0439	2024-05-22
https://access.redhat.com/errata/RHSA-2024:0448	2024-05-22
https://access.redhat.com/errata/RHSA-2024:0575	2024-05-22
https://access.redhat.com/errata/RHSA-2024:2394	2024-05-22
https://access.redhat.com/errata/RHSA-2024:2950	2024-05-22
https://access.redhat.com/errata/RHSA-2024:3138	2024-05-22
https://access.redhat.com/security/cve/CVE-2023-3567	2024-05-22
https://bugzilla.redhat.com/show_bug.cgi?id=2221463	2024-05-22

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"				< 6.2.0 Search vendor "Linux" for product "Linux Kernel" and version " < 6.2.0"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.2.0 Search vendor "Linux" for product "Linux Kernel" and version "6.2.0"		rc1		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.2.0 Search vendor "Linux" for product "Linux Kernel" and version "6.2.0"		rc2		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.2.0 Search vendor "Linux" for product "Linux Kernel" and version "6.2.0"		rc3		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.2.0 Search vendor "Linux" for product "Linux Kernel" and version "6.2.0"		rc4		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.2.0 Search vendor "Linux" for product "Linux Kernel" and version "6.2.0"		rc5		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.2.0 Search vendor "Linux" for product "Linux Kernel" and version "6.2.0"		rc6		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux"				8.0 Search vendor "Redhat" for product "Enterprise Linux" and version "8.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux"				9.0 Search vendor "Redhat" for product "Enterprise Linux" and version "9.0"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"		esm		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04"		esm		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				20.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "20.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				22.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "22.04"		lts		Affected