CVEvulnerability
CVE-2022-42319
6.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2022-11-01
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
- Weaknesses
- CWE-401
Description
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 reading the response can cause xenstored to not free the temporary memory. This can result in memory shortages causing Denial of Service (DoS) of xenstored.
Affected configurations
• xen xen (>= 4.9.0)
• debian debian linux 11.0
• fedoraproject fedora 35
• fedoraproject fedora 36
• fedoraproject fedora 37
Related
Weakness · CWE (1)
- CWE-401 Missing Release of Memory after Effective Lifetime weakness
References
- http://www.openwall.com/lists/oss-security/2022/11/01/6 Mailing List, Third Party Advisory
- http://xenbits.xen.org/xsa/advisory-416.html Patch, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202402-07 security.gentoo.org
- https://www.debian.org/security/2022/dsa-5272 Third Party Advisory
- https://xenbits.xenproject.org/xsa/advisory-416.txt Patch, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2022/11/01/6 Mailing List, Third Party Advisory
- http://xenbits.xen.org/xsa/advisory-416.html Patch, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202402-07 security.gentoo.org
- https://www.debian.org/security/2022/dsa-5272 Third Party Advisory
- https://xenbits.xenproject.org/xsa/advisory-416.txt Patch, Vendor Advisory