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EUVD-2021-2447 · Published Dec 14, 2021
Buffer overrun in CGI.escape_html A buffer overrun vulnerability was discovered in CGI.escape_html. This can lead to a buffer overflow when a user passes a very large string (> 700 MB) to CGI.escape_html on a platform where long type takes 4 bytes, typically, Windows.
Technologies
Fedoraproject FedoraRuby-Lang RubyRuby-Lang CgiCgi Cgi
Weaknesses
CWE-190
CVSS scores
- v3.19.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
MITRE ATT&CK
InferredWhere this vulnerability fits in an attack
Initial Access
References
- https://hackerone.com/reports/1328463
- https://www.ruby-lang.org/en/news/2021/11/24/buffer-overrun-in-cgi-escape_html-cve-2021-41816/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IUXQCH6FRKANCVZO2Q7D2SQX33FP3KWN/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UTOJGS5IEFDK3UOO7IY4OTTFGHGLSWZF/
- https://security-tracker.debian.org/tracker/CVE-2021-41816
- https://security.gentoo.org/glsa/202401-27
Potentially impacted assets
See if this affects your attack surface
