VDB-241289 · CVE-2023-43787 · Nessus 235594

X.org libX11 ImUtil.c XCreateImage integer overflow

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.0	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic has been found in X.org libX11. This issue affects the function XCreateImage of the file ImUtil.c. The manipulation leads to integer overflow. This vulnerability is traded as CVE-2023-43787. There is no exploit available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in X.org libX11 (version now known). It has been rated as problematic. This issue affects the function XCreateImage of the file ImUtil.c. The manipulation with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. The impact remains unknown.

The weakness was shared 10/04/2023. The advisory is shared at cgit.freedesktop.org. The identification of this vulnerability is CVE-2023-43787 since 09/22/2023. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 235594 (RockyLinux 9 : libX11 (RLSA-2024:2145)), which helps to determine the existence of the flaw in a target environment.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at cgit.freedesktop.org. The advisory contains the following remark:

CVE-2023-43787: Integer overflow in XCreateImage() leading to a heap overflow

The vulnerability is also documented in the vulnerability database at Tenable (235594). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

X.org

Name

libX11

License

open-source

Website

Vendor: https://www.x.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 7.0

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 7.8
CNA Vector (Red Hat, Inc.): 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Nessus ID: 235594
Nessus Name: RockyLinux 9 : libX11 (RLSA-2024:2145)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: cgit.freedesktop.org

Timelineinfo

09/22/2023 🔍
10/04/2023 +12 days 🔍
10/04/2023 +0 days 🔍
05/08/2025 +582 days 🔍

Sourcesinfo

Vendor: x.org

Advisory: cgit.freedesktop.org
Status: Confirmed

CVE: CVE-2023-43787 (🔍)
GCVE (CVE): GCVE-0-2023-43787
GCVE (VulDB): GCVE-100-241289

Entryinfo

Created: 10/04/2023 17:29
Updated: 05/08/2025 07:55
Changes: 10/04/2023 17:29 (39), 10/25/2023 15:34 (1), 10/25/2023 15:39 (21), 09/16/2024 17:44 (16), 05/08/2025 07:55 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.