VulnerabilityModified
CVE-2020-27347
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.
HIGH 7.8EPSS 0.69%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.69%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.69% probability · 51th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-121, CWE-787
- Affected
- tmux project/tmux
- Source
- security@ubuntu.com
References
- https://github.com/tmux/tmux/commit/a868bacb46e3c900530bed47a1c6f85b0fbe701cPatch, Third Party Advisory
- https://raw.githubusercontent.com/tmux/tmux/3.1c/CHANGESRelease Notes, Third Party Advisory
- https://security.gentoo.org/glsa/202011-10Third Party Advisory
- https://www.openwall.com/lists/oss-security/2020/11/05/3Exploit, Mailing List, Third Party Advisory
- https://github.com/tmux/tmux/commit/a868bacb46e3c900530bed47a1c6f85b0fbe701cPatch, Third Party Advisory
- https://raw.githubusercontent.com/tmux/tmux/3.1c/CHANGESRelease Notes, Third Party Advisory
- https://security.gentoo.org/glsa/202011-10Third Party Advisory
- https://www.openwall.com/lists/oss-security/2020/11/05/3Exploit, Mailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.