CVE-2022-42319

Name
CVE-2022-42319
Description
Xenstore: Guests can cause Xenstore to not free temporary memory When working on a request of a guest, xenstored might need to allocate quite large amounts of memory temporarily. This memory is freed only after the request has been finished completely. A request is regarded to be finished only after the guest has read the response message of the request from the ring page. Thus a guest not reading the response can cause xenstored to not free the temporary memory. This can result in memory shortages causing Denial of Service (DoS) of xenstored.
NVD Severity
medium
Other trackers
Mailing lists
Exploits
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
MISC https://xenbits.xenproject.org/xsa/advisory-416.txt
CONFIRM http://xenbits.xen.org/xsa/advisory-416.html
MLIST http://www.openwall.com/lists/oss-security/2022/11/01/6
DEBIAN https://www.debian.org/security/2022/dsa-5272
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ/
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/

Match rules

CPE URI Source package Min version Max version
cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* xen >= None <= 4.9.0
cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* xen >= 4.9.0 <= None

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
xen 3.16-main 4.16.2-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
xen 3.13-main 4.14.5-r7 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
xen 3.15-main 4.15.4-r0 Natanael Copa <ncopa@alpinelinux.org> fixed
xen 3.14-main 4.15.4-r0 Natanael Copa <ncopa@alpinelinux.org> fixed
xen 3.17-main 4.16.2-r2 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
xen edge-main 4.16.2-r3 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable