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

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Out-of-bounds write (CVE-ID: CVE-2023-6377)

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)

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.

References

• https://bodhi.fedoraproject.org/updates/FEDORA-2024-2a319dc3e8