In libexpat through 2.4.9, there is a use-after free caused by overeager destruction of a shared DTD in XML_ExternalEntityParserCreate in out-of-memory situations.
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{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "libexpat1-dev": "2.2.5-3ubuntu0.8", "expat": "2.2.5-3ubuntu0.8", "expat-dbgsym": "2.2.5-3ubuntu0.8", "libexpat1-udeb": "2.2.5-3ubuntu0.8", "libexpat1": "2.2.5-3ubuntu0.8", "libexpat1-dbgsym": "2.2.5-3ubuntu0.8" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "libexpat1-dev": "2.2.9-1ubuntu0.6", "expat": "2.2.9-1ubuntu0.6", "expat-dbgsym": "2.2.9-1ubuntu0.6", "libexpat1-udeb": "2.2.9-1ubuntu0.6", "libexpat1": "2.2.9-1ubuntu0.6", "libexpat1-dbgsym": "2.2.9-1ubuntu0.6" } ] }