Out-of-bounds write in tmux - CVE-2020-27347
Published: November 6, 2020 / Updated: November 18, 2020
Vulnerability identifier: #VU48517
CSH Severity: Low
CVSSv4.0: 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-2020-27347
CWE-ID: CWE-787
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
tmux
tmux
Software vendor:
tmux
tmux
Description
The vulnerability allows a local authenticated user to execute arbitrary code.
In tmux before version 3.1c the function input_csi_dispatch_sgr_colon() in file input.c contained a stack-based buffer-overflow that can be exploited by terminal output.
Remediation
Install update from vendor's website.