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CVE-2022-42321

MEDIUM
6.5
CVSS Score
Published: November 1, 2022 at 12:00 AM UTC
Updated: June 17, 2026 at 05:04 AM UTC
3 products affected across 3 vendorsDebian LinuxFedoraXen

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.3%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Debian Linux· Debiandrupal
95%
11.0
Fedora· Fedora Projectrpm
95%
353637
Xen· Xenwordpress-plugin
95%
All versions
Vendor states this is fixed in consult Xen advisory XSA-418 (unknown)

References (8)

Mailing ListThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2022/11/01/8
PatchVendor Advisory
Source: [email protected]
http://xenbits.xen.org/xsa/advisory-418.html
Vendor Advisory
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ/
Vendor Advisory
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/
Vendor Advisory
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ/
Vendor Advisory
Source: [email protected]
https://security.gentoo.org/glsa/202402-07
Vendor AdvisoryThird Party Advisory
Source: [email protected]
https://www.debian.org/security/2022/dsa-5272
PatchVendor Advisory
Source: [email protected]
https://xenbits.xenproject.org/xsa/advisory-418.txt

CVSS

6.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-674

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