Vulnerability Details : CVE-2022-42319
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.
Vulnerability category: Denial of service
Products affected by CVE-2022-42319
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-42319
0.02%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 2 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-42319
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H |
2.0
|
4.0
|
NIST |
CWE ids for CVE-2022-42319
-
The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.Assigned by: nvd@nist.gov (Primary)
References for CVE-2022-42319
-
http://xenbits.xen.org/xsa/advisory-416.html
XSA-416 - Xen Security AdvisoriesPatch;Vendor Advisory
-
https://www.debian.org/security/2022/dsa-5272
Debian -- Security Information -- DSA-5272-1 xenThird Party Advisory
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http://www.openwall.com/lists/oss-security/2022/11/01/6
oss-security - Xen Security Advisory 416 v2 (CVE-2022-42319) - Xenstore: Guests can cause Xenstore to not free temporary memoryMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ/
[SECURITY] Fedora 37 Update: xen-4.16.2-4.fc37 - package-announce - Fedora Mailing-Lists
-
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ/
[SECURITY] Fedora 36 Update: xen-4.16.2-3.fc36 - package-announce - Fedora Mailing-Lists
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ/
[SECURITY] Fedora 36 Update: xen-4.16.2-3.fc36 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://xenbits.xenproject.org/xsa/advisory-416.txt
Patch;Vendor Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/
[SECURITY] Fedora 35 Update: xen-4.15.3-7.fc35 - package-announce - Fedora Mailing-Lists
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https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ/
[SECURITY] Fedora 37 Update: xen-4.16.2-4.fc37 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
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https://security.gentoo.org/glsa/202402-07
Xen: Multiple Vulnerabilities (GLSA 202402-07) — Gentoo security
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/
[SECURITY] Fedora 35 Update: xen-4.15.3-7.fc35 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
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