CVE-2023-43787

Libx11: integer overflow in xcreateimage() leading to a heap overflow

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 vulnerability was found in libX11 due to an integer overflow within the XCreateImage() function. This flaw allows a local user to trigger an integer overflow and execute arbitrary code with elevated privileges.

Se encontró una vulnerabilidad en libX11 debido a un desbordamiento de enteros dentro de la función XCreateImage(). Esta falla permite a un usuario local desencadenar un desbordamiento de enteros y ejecutar código arbitrario con privilegios elevados.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2023-09-22 CVE Reserved
2023-10-04 CVE Published
2023-11-04 EPSS Updated
2024-11-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-122: Heap-based Buffer Overflow
CWE-190: Integer Overflow or Wraparound

CAPEC

References (7)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2024/01/24/9
https://jfrog.com/blog/xorg-libx11-vulns-cve-2023-43786-cve-2023-43787-part-two
https://security.netapp.com/advisory/ntap-20231103-0006

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2024:2145	2024-05-22
https://access.redhat.com/errata/RHSA-2024:2973	2024-05-22
https://access.redhat.com/security/cve/CVE-2023-43787	2024-05-22
https://bugzilla.redhat.com/show_bug.cgi?id=2242254	2024-05-22

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
X.org Search vendor "X.org"		Libx11 Search vendor "X.org" for product "Libx11"				< 1.8.7 Search vendor "X.org" for product "Libx11" and version " < 1.8.7"		-		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
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				38 Search vendor "Fedoraproject" for product "Fedora" and version "38"		-		Affected