#VU71968 NULL pointer dereference in tmux - CVE-2022-47016

Vulnerability identifier: #VU71968

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-47016

CWE-ID: CWE-476

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
tmux
Client/Desktop applications / Other client software

Vendor: tmux

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error within the window_pane_set_event() function in window.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

tmux: 3.0a-r2 - 3.3

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External links
https://github.com/tmux/tmux/issues/3312
https://github.com/tmux/tmux/issues/3447

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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.