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: 2024-09-27

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-6377 CVE-2023-6478
CWE-ID	CWE-787 CWE-190
Exploitation vector	Local
Public exploit	N/A
Vulnerable software	Fedora Operating systems & Components / Operating system xorgxrdp Operating systems & Components / Operating system package or component xorg-x11-server Operating systems & Components / Operating system package or component xorg-x11-drv-vmware Operating systems & Components / Operating system package or component xorg-x11-drv-vesa Operating systems & Components / Operating system package or component xorg-x11-drv-qxl Operating systems & Components / Operating system package or component xorg-x11-drv-openchrome Operating systems & Components / Operating system package or component xorg-x11-drv-nouveau Operating systems & Components / Operating system package or component xorg-x11-drv-intel Operating systems & Components / Operating system package or component xorg-x11-drv-fbdev Operating systems & Components / Operating system package or component xorg-x11-drv-dummy Operating systems & Components / Operating system package or component xorg-x11-drv-ati Operating systems & Components / Operating system package or component xorg-x11-drv-amdgpu Operating systems & Components / Operating system package or component tigervnc Operating systems & Components / Operating system package or component
Vendor	Fedoraproject

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds write

EUVDB-ID: #VU84372

Risk: Low

CVSSv4.0: 5.9 [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]

CVE-ID: CVE-2023-6377

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

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.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 42

xorgxrdp: before 0.10.2-2.fc42

xorg-x11-server: before 21.1.13-3.fc42

xorg-x11-drv-vmware: before 13.4.0-6.fc42

xorg-x11-drv-vesa: before 2.6.0-1.fc42

xorg-x11-drv-qxl: before 0.1.6-5.fc42

xorg-x11-drv-openchrome: before 0.6.400-9.20210215git5dbad06.fc42

xorg-x11-drv-nouveau: before 1.0.17-10.fc42

xorg-x11-drv-intel: before 2.99.917-59.20210115.fc42

xorg-x11-drv-fbdev: before 0.5.0-17.fc42

xorg-x11-drv-dummy: before 0.4.1-4.fc42

xorg-x11-drv-ati: before 22.0.0-2.fc42

xorg-x11-drv-amdgpu: before 23.0.0-6.fc42

tigervnc: before 1.14.0-6.fc42

CPE2.3

External links

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

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Integer overflow

EUVDB-ID: #VU84373