CVE-2020-27347
CVE-2020-27347 — tmux stack buffer overflow in function input_csi_dispatch_sgr_colon
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.
Published Updated Sources: cvelistV5, canonical
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the scoring sources call it.
Exploitation
Exploit code
public exploit, none observed
EPSS
1%
chance of exploitation in 30 days
CVSS base
8.8
HIGH
Affected scope
The catalog records vendors and products as separate lists, not pairs, so which product belongs to which vendor is not something this page can say.
Every base score collected
Sources score independently and disagree; each row says who scored it and under which version.
| Score | Version | Severity | Expl. | Impact | Source |
|---|---|---|---|---|---|
| 8.8 | CVSS 3.1 | HIGH | — | — | cvelistV5 |
Weakness & attack patterns
- CWE-121
Public exploit
Capability, not use: code existing is a different claim from anyone running it.
Indexed by
References
4 on the record
- github.com/tmux/tmux/commit/a868bacb46e3c900530bed47a1c6f85b0fbe701c
x_refsource_MISC
- www.openwall.com/lists/oss-security/2020/11/05/3
x_refsource_MISC
- security.gentoo.org/glsa/202011-10
vendor-advisory, x_refsource_GENTOO
- raw.githubusercontent.com/tmux/tmux/3.1c/CHANGES
x_refsource_CONFIRM
Elsewhere on this site
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.