patches/packages/libxml2-2.9.13-x86_64-1_slack15.0.txz
This update fixes bugs and the following security issues:
Use-after-free of ID and IDREF attributes
(Thanks to Shinji Sato for the report)
Use-after-free in xmlXIncludeCopyRange (David Kilzer)
Fix Null-deref-in-xmlSchemaGetComponentTargetNs (huangduirong)
Fix memory leak in xmlXPathCompNodeTest
Fix null pointer deref in xmlStringGetNodeList
Fix several memory leaks found by Coverity (David King)
For more information, see:
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-23308
(* Security fix *)

patches/packages/libxslt-1.1.35-x86_64-1_slack15.0.txz
This update fixes bugs and the following security issues:
Fix use-after-free in xsltApplyTemplates
Fix memory leak in xsltDocumentElem (David King)
Fix memory leak in xsltCompileIdKeyPattern (David King)
Fix double-free with stylesheets containing entity nodes
For more information, see:
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30560
(* Security fix *)