CVE-2021-33477
HIGH 8.8EPSS 4.1%
rxvt-unicode 9.22, rxvt 2.7.10, mrxvt 0.5.4, and Eterm 0.9.7 allow (potentially remote) code execution because of improper handling of certain escape sequences (ESC G Q). A response is terminated by a newline.
- CVSS v3.1 NVD
- 8.8 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS v2.0 NVD
- 6.5 MEDIUM
AV:N/AC:L/Au:S/C:P/I:P/A:P - EPSS
- 4.09% chance of exploitation in the next 30 days, 91st percentile
- Published
- 2021-05-20
- Updated
- 2024-08-03
Proof-of-concept exploits (2)
- https://packetstormsecurity.com/files/162621/rxvt-2.7.0-rxvt-unicode-9.22-Code-Execution…
- https://www.openwall.com/lists/oss-security/2021/05/17/1
Security advisories
- http://cvs.schmorp.de/rxvt-unicode/Changes?view=log
- http://cvs.schmorp.de/rxvt-unicode/src/command.C?r1=1.582&r2=1.583
- https://git.enlightenment.org/apps/eterm.git/log
- https://lists.debian.org/debian-lts-announce/2021/05/msg00026.html
- https://lists.debian.org/debian-lts-announce/2021/06/msg00010.html
- https://lists.debian.org/debian-lts-announce/2021/06/msg00011.html
- https://lists.debian.org/debian-lts-announce/2021/06/msg00012.html
- https://security.gentoo.org/glsa/202105-17
- https://security.gentoo.org/glsa/202209-07
- https://sourceforge.net/projects/materm/files/mrxvt%20source
- https://sourceforge.net/projects/rxvt/files/rxvt-dev
- https://www.openwall.com/lists/oss-security/2017/05/01/20