Security readout for executives and security teams
A guest VM on a Xen host can force xenstored to consume excessive memory, causing a denial of service. This can affect host control-plane functions for virtual machines, so the business risk is service disruption rather than data theft or code execution. Exposure is most likely on Xen virtualization hosts, especially multi-tenant or shared environments where guest VM administrators are not fully trusted. The bundle does not provide exact affected version ranges beyond directing users to Xen XSA-326 and distribution advisories. Treat this as a timely infrastructure reliability fix for Xen platforms, especially shared virtualization. It is not presented as internet-exploitable or data-stealing, but a guest-triggered control-plane denial of service can still create customer-facing outage risk. Mitigation focus: Review Xen XSA-326 for affected versions and fixed releases.; Apply applicable Xen, Debian, or Fedora security updates.; Prioritize shared Xen hosts with untrusted or tenant-managed guests..
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-2022-42311 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.