SB2024070822 - Gentoo update for X.Org X11 library
Published: July 8, 2024
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 4 secuirty vulnerabilities.
1) Out-of-bounds write (CVE-ID: CVE-2023-3138)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error within src/InitExt.c in libX11. A remote attacker can send specially crafted data to the server, trigger an out-of-bounds write and perform a denial of service (DoS) attack.
2) Out-of-bounds read (CVE-ID: CVE-2023-43785)
The vulnerability allows a local user to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within the _XkbReadKeySyms() function. A local user can trigger an out-of-bounds read error and read contents of memory on the system.
3) Infinite loop (CVE-ID: CVE-2023-43786)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop within the PutSubImage() function. A local user can consume all available system resources and cause denial of service conditions.
4) Integer overflow (CVE-ID: CVE-2023-43787)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to integer overflow within the XCreateImage() function. A local user can trigger integer overflow and execute arbitrary code with elevated privileges.
Remediation
Install update from vendor's website.