Security readout for executives and security teams
A guest VM on a Xen host can exhaust xenstored memory and cause a denial of service. This is mainly a risk to virtualization platforms, especially shared or multi-tenant environments. It does not indicate data theft or remote internet compromise in the supplied sources. Exposure is likely where Xen hypervisors run affected xenstored versions described by XSA-326. Highest concern is shared hosting, cloud, lab, or enterprise virtualization where guest administrators or tenants are not fully trusted. The source bundle does not identify non-Xen products as affected. Treat this as a moderate availability risk. It deserves timely patching on Xen infrastructure, with faster action for shared or customer-facing virtualization. It is less urgent than remotely exploitable code execution, but downtime impact can be material on consolidated host platforms. Mitigation focus: Review Xen XSA-326 to determine affected versions and fixed packages.; Apply Xen Project or Linux distribution updates from trusted vendor advisories.; Prioritize multi-tenant Xen hosts and hosts running untrusted guest workloads..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-770: Exact CWE lookup
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Open ATT&CK lookupCVE-2022-42313 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H24Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://xenbits.xenproject.org/xsa/advisory-326.txtCVE reference
- DSA-5272CVE reference · vendor-advisory
- FEDORA-2022-07438e12dfCVE reference · vendor-advisory
- FEDORA-2022-99af00f60eCVE reference · vendor-advisory
- FEDORA-2022-9f51d13fa3CVE reference · vendor-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Allocation of Resources Without Limits or Throttling
Allocation of Resources Without Limits or Throttling represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.