Updated advisory posts against rubysec/ruby-advisory-db@33eda20

Author: jasnow

advisories/_posts/2024-05-13-GHSA-r95h-9x8f-r3f7.md

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+---
+layout: advisory
+title: 'GHSA-r95h-9x8f-r3f7 (nokogiri): Nokogiri updates packaged libxml2 to v2.12.7
+  to resolve CVE-2024-34459'
+comments: false
+categories:
+- nokogiri
+advisory:
+  gem: nokogiri
+  ghsa: r95h-9x8f-r3f7
+  url: https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-r95h-9x8f-r3f7
+  title: Nokogiri updates packaged libxml2 to v2.12.7 to resolve CVE-2024-34459
+  date: 2024-05-13
+  description: |
+    ## Summary
+
+    Nokogiri v1.16.5 upgrades its dependency libxml2 to
+    [2.12.7](https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.12.7) from 2.12.6.
+
+    libxml2 v2.12.7 addresses CVE-2024-34459:
+
+    - described at https://gitlab.gnome.org/GNOME/libxml2/-/issues/720
+    - patched by https://gitlab.gnome.org/GNOME/libxml2/-/commit/2876ac53
+
+    ## Impact
+
+    There is no impact to Nokogiri users because the issue is present only
+    in libxml2's `xmllint` tool which Nokogiri does not provide or expose.
+
+    ## Timeline
+
+    - 2024-05-13 05:57 EDT, libxml2 2.12.7 release is announced
+    - 2024-05-13 08:30 EDT, nokogiri maintainers begin triage
+    - 2024-05-13 10:05 EDT, nokogiri [v1.16.5 is released](https://github.com/sparklemotion/nokogiri/releases/tag/v1.16.5)
+      and this GHSA made public
+  patched_versions:
+  - ">= 1.16.5"
+  related:
+    url:
+    - https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-r95h-9x8f-r3f7
+    - https://github.com/sparklemotion/nokogiri/releases/tag/v1.16.5
+    - https://gitlab.gnome.org/GNOME/libxml2/-/commit/2876ac53
+    - https://gitlab.gnome.org/GNOME/libxml2/-/issues/720
+    - https://github.com/advisories/GHSA-r95h-9x8f-r3f7
+---