SARA / Free Tools / CVE / CVE-2022-42319

CVE-2022-42319 — Xenstore: Guests can cause Xenstore to not free temporary memory When working on

Xenstore: Guests can cause Xenstore to not free temporary memory When working on a request of a guest, xenstored might need to allocate quite large amounts of memory temporarily. This memory is freed only after the request has been finished completely. A request is regarded to be

CVSS
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EPSS
0.03% (top 93.20%)
CWE
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Published
2022-11-01T00:00:00.000Z
Last modified
2024-08-03T13:03:45.976Z
CVSS vector
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01What is this vulnerability?

Xenstore: Guests can cause Xenstore to not free temporary memory When working on a request of a guest, xenstored might need to allocate quite large amounts of memory temporarily. This memory is freed only after the request has been finished completely. A request is regarded to be finished only after the guest has read the response message of the request from the ring page. Thus a guest not…

02Affected products

VendorProductVersions
Xenxenconsult Xen advisory XSA-416

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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