GHSA-pxvg-2qj5-37jq Nokogiri updates packaged libxml2 to v2.10.4 to resolve multiple CVEs

• RubyGems nokogiri: < 1.14.3 → fixed in 1.14.3

Summary Nokogiri v1.14.3 upgrades the packaged version of its dependency libxml2 to v2.10.4 from v2.10.3. libxml2 v2.10.4 addresses the following known vulnerabilities: • CVE-2023-29469: Hashing of empty dict strings isn't deterministic • CVE-2023-28484: Fix null deref in xmlSchemaFixupComplexType • Schemas: Fix null-pointer-deref in xmlSchemaCheckCOSSTDerivedOK Please note that this advisory only applies to the CRuby implementation of Nokogiri `= 1.14.3`. Users who are unable to upgrade Nokogiri may also choose a more complicated mitigation: compile and link Nokogiri against external libraries libxml2 `>= 2.10.4` which will also address these same issues. Impact No public information has yet been published about the security-related issues other than the upstream commits. Examination of those changesets indicate that the more serious issues relate to libxml2 dereferencing NULL pointers and potentially segfaulting while parsing untrusted inputs. The commits can be examined at: • [[CVE-2023-29469] Hashing of empty dict strings isn't deterministic (09a2dd45) · Commits · GNOME / libxml2 · GitLab](https://gitlab.gnome.org/GNOME/libxml2/-/commit/09a2dd453007f9c7205274623acdd73747c22d64) • [[CVE-2023-28484] Fix null deref in xmlSchemaFixupComplexType (647e072e) · Commits · GNOME / libxml2 · GitLab](https://gitlab.gnome.org/GNOME/libxml2/-/commit/647e072ea0a2f12687fa05c172f4c4713fdb0c4f) • schemas: Fix null-pointer-deref in xmlSchemaCheckCOSSTDerivedOK (4c6922f7) · Commits · GNOME / libxml2 · GitLab