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Vulnerability DatabaseCVE-2023-43786
CVE-2023-43786:
NixOS vulnerability analysis and mitigation
Overview
A vulnerability identified as CVE-2023-43786 was discovered in libX11, specifically within the PutSubImage() function. The vulnerability was introduced in X11R2 (released February 1988) and was fixed in libX11 version 1.8.7. This security flaw was discovered by Yair Mizrahi of the JFrog Vulnerability Research team (JFrog Blog).
Technical details
The vulnerability stems from an infinite loop within the PutSubImage() function that can lead to stack exhaustion from infinite recursion. The severity of this vulnerability has been rated as Moderate with a CVSS v3.1 base score of 5.5 (MEDIUM) and vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H (NVD).
Impact
When successfully exploited, this vulnerability allows a local user to consume all available system resources, resulting in a denial of service (DoS) condition (Security Advisory).
Mitigation and workarounds
The vulnerability has been fixed in libX11 version 1.8.7. Various vendors have released security updates to address this issue, including Red Hat through RHSA-2024:2145 for RHEL 9 and RHSA-2024:2973 for RHEL 8 (Red Hat Advisory).
Additional resources
Source: This report was generated using AI
Related NixOS vulnerabilities:
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