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CVE-2022-23034 (GCVE-0-2022-23034)

Vulnerability from cvelistv5 – Published: 2022-01-25 13:43 – Updated: 2024-08-03 03:28
VLAI
Summary
A PV guest could DoS Xen while unmapping a grant To address XSA-380, reference counting was introduced for grant mappings for the case where a PV guest would have the IOMMU enabled. PV guests can request two forms of mappings. When both are in use for any individual mapping, unmapping of such a mapping can be requested in two steps. The reference count for such a mapping would then mistakenly be decremented twice. Underflow of the counters gets detected, resulting in the triggering of a hypervisor bug check.
Severity
No CVSS data available.
CWE
  • unknown
Assigner
References
URL Tags
https://xenbits.xenproject.org/xsa/advisory-394.txt x_refsource_MISC
http://www.openwall.com/lists/oss-security/2022/01/25/3 mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://www.debian.org/security/2022/dsa-5117 vendor-advisoryx_refsource_DEBIAN
https://security.gentoo.org/glsa/202208-23 vendor-advisoryx_refsource_GENTOO
Impacted products
Vendor Product Version CPE status
Xen xen Unknown: consult Xen advisory XSA-394
guessed Create a notification for this product.
Credits
{'credit_data': {'description': {'description_data': [{'lang': 'eng', 'value': 'This issue was discovered by Julien Grall of Amazon.'}]}}}
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "xen: A PV guest could DoS Xen while unmapping a grant (XSA-394)",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-23034.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-01T01:33:01Z",
      "cve": "CVE-2022-23034",
      "id": "CVE-2022-23034",
      "initial_release_date": "2023-02-15T03:28:34Z",
      "product_status:known_affected": "340",
      "product_status:known_not_affected": "47",
      "product_status:recommended": "462",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-23034",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-23034.json",
      "version": "33"
    }
  }
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.