Nokogiri is an open source XML and HTML library for Ruby. Nokogiri prior to version 1.13.6 does not type-check all inputs into the XML and HTML4 SAX parsers, allowing specially crafted untrusted inputs to cause illegal memory access errors (segfault) or reads from unrelated memory. Version 1.13.6 contains a patch for this issue. As a workaround, ensure the untrusted input is a `String` by calling `#to_s` or equivalent.
The product does not handle or incorrectly handles when a particular element is not the expected type, e.g. it expects a digit (0-9) but is provided with a letter (A-Z).
The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.
| Link | Tags |
|---|---|
| https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-xh29-r2w5-wx8m | third party advisory issue tracking |
| https://github.com/sparklemotion/nokogiri/commit/83cc451c3f29df397caa890afc3b714eae6ab8f7 | |
| https://github.com/sparklemotion/nokogiri/commit/db05ba9a1bd4b90aa6c76742cf6102a7c7297267 | third party advisory patch |
| https://github.com/sparklemotion/nokogiri/releases/tag/v1.13.6 | release notes third party advisory |
| https://securitylab.github.com/advisories/GHSL-2022-031_GHSL-2022-032_Nokogiri | |
| http://seclists.org/fulldisclosure/2022/Dec/23 | mailing list third party advisory |
| https://security.gentoo.org/glsa/202208-29 | third party advisory |
| https://securitylab.github.com/advisories/GHSL-2022-031_GHSL-2022-032_Nokogiri/ | exploit third party advisory |
| https://support.apple.com/kb/HT213532 | third party advisory |