Uncontrolled Recursion Affecting xen package, versions <4.15.4-r0
Snyk CVSS
Attack Complexity
Low
Scope
Changed
Availability
High
Threat Intelligence
EPSS
0.05% (14th
percentile)
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Test your applications- Snyk ID SNYK-ALPINE315-XEN-3136361
- published 20 Nov 2022
- disclosed 1 Nov 2022
Introduced: 1 Nov 2022
CVE-2022-42321 Open this link in a new tabHow to fix?
Upgrade Alpine:3.15
xen
to version 4.15.4-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream xen
package and not the xen
package as distributed by Alpine
.
See How to fix?
for Alpine:3.15
relevant fixed versions and status.
Xenstore: Guests can crash xenstored via exhausting the stack Xenstored is using recursion for some Xenstore operations (e.g. for deleting a sub-tree of Xenstore nodes). With sufficiently deep nesting levels this can result in stack exhaustion on xenstored, leading to a crash of xenstored.
References
- https://xenbits.xenproject.org/xsa/advisory-418.txt
- http://xenbits.xen.org/xsa/advisory-418.html
- http://www.openwall.com/lists/oss-security/2022/11/01/8
- https://www.debian.org/security/2022/dsa-5272
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ/
- https://security.gentoo.org/glsa/202402-07