A flaw was found in the exsltFuncResultComp() function of libxslt, which handles EXSLT <func:result> elements during stylesheet parsing. Due to improper type handling, the function may treat an XML document node as a regular XML element node, resulting in a type confusion. This can cause unexpected memory reads and potential crashes. While difficult to exploit, the flaw could lead to application instability or denial of service.

A stack overflow flaw was found in libxml by parsing root XML document element DTD definition. Providing a specially-crafted XML file would lead to excessive stack growth and denial of service (application crash), when opened by a victim.

Pointer use-after-free flaws were found in libxml by parsing Notation and Enumeration attribute types. A remote attacker could provide a specially-crafted XML file, which once opened by a local, unsuspecting user would lead to denial of service (application crash).