|Description||CGI.escape_html in Ruby before 2.7.5 and 3.x before 3.0.3 has an integer overflow and resultant buffer overflow via a long string on platforms (such as Windows) where size_t and long have different numbers of bytes. This also affects the CGI gem before 0.3.1 for Ruby.|
|Source||CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)|
Vulnerable and fixed packages
The table below lists information on source packages.
|ruby2.5 (PTS)||buster, buster (security)||2.5.5-3+deb10u4||fixed|
|ruby2.7 (PTS)||bullseye (security), bullseye||2.7.4-1+deb11u1||fixed|
|ruby3.0 (PTS)||bookworm, sid||3.0.4-7||fixed|
The information below is based on the following data on fixed versions.
- ruby2.5 <not-affected> (Vulnerable code introduced later)
- ruby2.3 <not-affected> (Vulnerable code introduced later)
Fixed in Ruby 3.0.3, 2.7.5
Introduced by: https://github.com/ruby/cgi/commit/3a62e20f76ea42ff0b4d45f2952479eab266ae1c (v0.1.0)
Fixed by: https://github.com/ruby/cgi/commit/c728632c1c09d46cfd4ecbff9caaa3651dd1002a (v0.3.1)