NULL pointer dereference in tmux - CVE-2022-47016

Vulnerability identifier: #VU71968

CSH Severity: Low

CVSS v4: 6.8 [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]

CVE-ID: CVE-2022-47016

CWE-ID: CWE-476

Exploitation vector: Local access

Exploit availability: No public exploit available

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.

tmux
Gentoo Linux
Ubuntu
openSUSE Leap
openEuler
tmux (Ubuntu package)
tmux
tmux-debuginfo
tmux-debugsource
tmux-help
app-misc/tmux

Install update from vendor's website.

tmux (Ubuntu package) - addressed in versions Ubuntu Pro, 2.6-3ubuntu0.3, 3.0a-2ubuntu0.4, 3.2a-4ubuntu0.2, 3.3a-1ubuntu0.1
tmux - update to 3.1c-150300.3.3.1
tmux-debuginfo - update to 3.1c-150300.3.3.1
tmux-debugsource - update to 3.1c-150300.3.3.1
tmux - update to 3.2a-3
tmux-debuginfo - update to 3.2a-3
tmux-debugsource - update to 3.2a-3
tmux-help - update to 3.2a-3
app-misc/tmux - update to 3.4

• https://github.com/tmux/tmux/issues/3312
• https://github.com/tmux/tmux/issues/3447

• Denial of service tmux
• Ubuntu update for tmux
• SUSE update for tmux
• openEuler 22.03 LTS SP1 update for tmux
• Gentoo update for tmux