Vulnerability in Eterm Project
CVE-2021-33477
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.041 (90.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 90.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.041 · newest: 0.041 · change: 0.000
Affected products
- Eterm Project — versions 0.9.7
- Mrxvt Project — versions 0.5.4
- Rxvt Project — versions 2.7.10
- Rxvt-Unicode Project — versions 9.22
- Debian Linux — versions 9.0
- Fedoraproject Fedora — versions 33, 34
Weakness classification (CWE)
References
- www.openwall.com/lists/oss-security/2021/05/17/1 (Exploit, Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2017/05/01/20 (Mailing List, Third Party Advisory)
- cvs.schmorp.de/rxvt-unicode/src/command.C (Patch, Third Party Advisory)
- packetstormsecurity.com/files/162621/rxvt-2.7.0-rxvt-unicode-9.22-Code-Executio… (Exploit, VDB Entry, Third Party Advisory)
- sourceforge.net/projects/rxvt/files/rxvt-dev/ (Product, Third Party Advisory)
- cvs.schmorp.de/rxvt-unicode/Changes (Third Party Advisory)
- sourceforge.net/projects/materm/files/mrxvt source/ (Product, Third Party Advisory)
- git.enlightenment.org/apps/eterm.git/log/ (Third Party Advisory)
- security.gentoo.org/glsa/202105-17 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2021/05/msg00026.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-33477?
- CVE-2021-33477 is a high-severity vulnerability in Eterm Project, classified under Improper Handling of Exceptional Conditions. CVSS score: 8.8/10. Published 2021-05-20.
- How severe is CVE-2021-33477?
- High severity. CVSS v3 base score is 8.8 out of 10.