xen is vulnerable to denial of service. The vulnerability exists because node transactions are not properly handled which allows an attacker to cause an application crash by creating arbitrary number of nodes.
www.openwall.com/lists/oss-security/2022/11/01/11
xenbits.xen.org/xsa/advisory-421.html
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ/
lists.fedoraproject.org/archives/list/[email protected]/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ/
lists.fedoraproject.org/archives/list/[email protected]/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/
lists.fedoraproject.org/archives/list/[email protected]/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ/
secdb.alpinelinux.org/v3.14/main.yaml
secdb.alpinelinux.org/v3.15/main.yaml
www.debian.org/security/2022/dsa-5272
xenbits.xenproject.org/xsa/advisory-421.txt