CVE-2023-43787: Libx11: integer overflow in xcreateimage() leading to a heap overflow

Description

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.

Classification

CVE ID: CVE-2023-43787

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 5.06% (scored less or equal to compared to others)

EPSS Date: 2025-02-03 (when was this score calculated)

References

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

Timeline