Fedora 36 update for xorg-x11-server-Xwayland



Published: 2023-08-16
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-0494
CWE-ID CWE-416
Exploitation vector Local
Public exploit N/A
Vulnerable software
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Operating systems & Components / Operating system

xorg-x11-server-Xwayland
Operating systems & Components / Operating system package or component

Vendor Fedoraproject

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Use-after-free

EUVDB-ID: #VU71991

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-0494

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within DeepCopyPointerClasses. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.

Mitigation

Upgrade xorg-x11-server-Xwayland to version 22.1.8-1.fc36.

Vulnerable software versions

Fedora: 36

xorg-x11-server-Xwayland: before 22.1.8-1.fc36

External links

http://bodhi.fedoraproject.org/updates/FEDORA-2023-1ebf4507df


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.



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