CVE-2020-27347
Published: 4 November 2020
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.
Notes
| Author | Note |
|---|---|
| alexmurray | Affects tmux versions >= 2.9 |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
tmux Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(code not present)
|
| focal |
Released
(3.0a-2ubuntu0.2)
|
|
| groovy |
Released
(3.1b-1ubuntu0.1)
|
|
| precise |
Not vulnerable
|
|
| trusty |
Not vulnerable
(code not present)
|
|
| upstream |
Needs triage
|
|
| xenial |
Not vulnerable
(code not present)
|
|
|
Patches: upstream: https://github.com/tmux/tmux/commit/a868bacb46e3c900530bed47a1c6f85b0fbe701c |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 8.5 |
| Attack vector | Network |
| Attack complexity | High |
| Privileges required | Low |
| User interaction | None |
| Scope | Changed |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H |