SB2024092794 - Fedora 42 update for tigervnc, xorg-x11-drv-amdgpu, xorg-x11-drv-ati, xorg-x11-drv-dummy, xorg-x11-drv-fbdev, xorg-x11-drv-intel, xorg-x11-drv-nouveau, xorg-x11-drv-openchrome, xorg-x11-drv-qxl, xorg-x11-drv-vesa, xorg-x11-drv-vmware, xorg-x11-server, xor
Published: September 27, 2024
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) Out-of-bounds write (CVE-ID: CVE-2023-6377)
CWE-ID: CWE-787 - Out-of-bounds write
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error in the XKB button handler when switching logical input devices. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.
2) Integer overflow (CVE-ID: CVE-2023-6478)
CWE-ID: CWE-190 - Integer overflow
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to integer overflow when handling RRChangeProviderProperty or RRChangeOutputProperty requests. A local user can send a specially crafted request to the server, trigger an integer overflow and gain access to sensitive information.
Remediation
Install update from vendor's website.