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Vulnerability · Published Apr 5, 2022 · Assigned by XEN

CVE-2022-26357

High 7.0

In plain English

A high-severity security flaw in xen from Xen. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)7.0High
Exploit odds (30 days)0.3%top 82.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

race in VT-d domain ID cleanup Xen domain IDs are up to 15 bits wide. VT-d hardware may allow for only less than 15 bits to hold a domain ID associating a physical device with a particular domain. Therefore internally Xen domain IDs are mapped to the smaller value range. The cleaning up of the housekeeping structures has a race, allowing for VT-d domain IDs to be leaked and flushes to be bypassed.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20xen4.16.1-r0ALPINE-CVE-2022-26357
Alpine:v3.21xen4.16.1-r0ALPINE-CVE-2022-26357
Alpine:v3.22xen4.16.1-r0ALPINE-CVE-2022-26357
Alpine:v3.23xen4.16.1-r0ALPINE-CVE-2022-26357
Alpine:v3.24xen4.16.1-r0ALPINE-CVE-2022-26357
Debian:12xen4.16.1-1DEBIAN-CVE-2022-26357
Debian:13xen4.16.1-1DEBIAN-CVE-2022-26357
Debian:14xen4.16.1-1DEBIAN-CVE-2022-26357
Ubuntu:22.04:LTSxenno fix listedUBUNTU-CVE-2022-26357
Ubuntu:24.04:LTSxenno fix listedUBUNTU-CVE-2022-26357
Ubuntu:25.10xenno fix listedUBUNTU-CVE-2022-26357
Ubuntu:26.04:LTSxenno fix listedUBUNTU-CVE-2022-26357
Ubuntu:26.10xenno fix listedUBUNTU-CVE-2022-26357

Affected products (as reported)

VendorProductVersions
Xen xen see references

References