CVE-2022-42319
First published: Tue Nov 01 2022(Updated: )
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.
Credit: security@xen.org security@xen.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/xen | <=4.11.4+107-gef32c7afa2-1 | 4.14.6-1 4.14.5+94-ge49571868d-1 4.17.1+2-gb773c48e36-1 4.17.2+55-g0b56bed864-1 |
| Xen Xen | >=4.9.0 | |
| Debian Debian Linux | =11.0 | |
| Fedoraproject Fedora | =35 | |
| Fedoraproject Fedora | =36 | |
| Fedoraproject Fedora | =37 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://xenbits.xen.org/xsa/advisory-416.html
- https://security-tracker.debian.org/tracker/CVE-2022-42319
- http://www.openwall.com/lists/oss-security/2022/11/01/6
- http://xenbits.xen.org/xsa/advisory-416.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ/
- https://www.debian.org/security/2022/dsa-5272
- https://xenbits.xenproject.org/xsa/advisory-416.txt
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ/
- https://security.gentoo.org/glsa/202402-07
Frequently Asked Questions
What is the severity of CVE-2022-42319?
The severity of CVE-2022-42319 is medium with a severity value of 6.5.
How does CVE-2022-42319 affect Xen and Debian Xen?
CVE-2022-42319 affects Xen versions up to and including 4.11.4+107-gef32c7afa2-1 and Debian Xen versions 11.0.
How does CVE-2022-42319 affect Fedora versions 35, 36, and 37?
CVE-2022-42319 affects Fedora versions 35, 36, and 37.
What is the Common Weakness Enumeration (CWE) for CVE-2022-42319?
The Common Weakness Enumeration (CWE) for CVE-2022-42319 is CWE-401.
Where can I find more information about CVE-2022-42319?
You can find more information about CVE-2022-42319 in the advisories provided by Xen, Debian, and Openwall.
- collector/security-tracker-debian
- collector/nvd-index
- agent/type
- agent/softwarecombine
- agent/remedy
- collector/mitre-cve
- source/MITRE
- agent/references
- agent/severity
- agent/weakness
- agent/author
- agent/tags
- agent/last-modified-date
- agent/description
- agent/first-publish-date
- agent/event
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- package-manager/debian
- vendor/xen
- canonical/xen xen
- version/xen xen/4.9.0
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/11.0
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/35
- version/fedoraproject fedora/36
- version/fedoraproject fedora/37