RCE in Invisible-Island Xterm
CVE-2022-45063
xterm before 375 allows code execution via font ops, e.g., because an OSC 50 response may have Ctrl-g and therefore lead to command execution within the vi line-editing mode of Zsh. NOTE: font ops are not allowed in the xterm default configurations of some Linux distributions.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.054 (92.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 92.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.054 · newest: 0.054 · change: +0.000
Affected products
- Invisible-Island Xterm
- Fedoraproject Fedora — versions 35, 36, 37
Weakness classification (CWE)
Public proof-of-concept exploits
References
- invisible-island.net/xterm/xterm.log.html (Release Notes, Vendor Advisory)
- www.openwall.com/lists/oss-security/2022/11/10/1 (Patch, Mailing List, Third Party Advisory)
- news.ycombinator.com/item (Exploit, Third Party Advisory, Issue Tracking)
- www.openwall.com/lists/oss-security/2022/11/10/1 (mailing-list, Patch, Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2022/11/10/5 (mailing-list, Patch, Mailing List, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- security.gentoo.org/glsa/202211-09 (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- www.openwall.com/lists/oss-security/2024/06/15/1 (mailing-list)
Frequently asked questions
- What is CVE-2022-45063?
- CVE-2022-45063 is a critical-severity vulnerability in Invisible-Island Xterm, classified under Command Injection. CVSS score: 9.8/10. Published 2022-11-10.
- How severe is CVE-2022-45063?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2022-45063 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.