CVE-2022-33746

Description

P2M pool freeing may take excessively long The P2M pool backing second level address translation for guests may be of significant size. Therefore its freeing may take more time than is reasonable without intermediate preemption checks. Such checking for the need to preempt was so far missing.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.03%
Vendor Advisory fedoraproject.org Vendor Advisory debian.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory gentoo.org Vendor Advisory xen.org Vendor Advisory xenproject.org
Affected: Xen xen
Published at:
Updated at:

References

Link Tags
https://xenbits.xenproject.org/xsa/advisory-410.txt patch vendor advisory mitigation
http://xenbits.xen.org/xsa/advisory-410.html patch vendor advisory mitigation
http://www.openwall.com/lists/oss-security/2022/10/11/3 patch mailing list mitigation third party advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XWSC77GS5NATI3TT7FMVPULUPXR635XQ/ vendor advisory
https://www.debian.org/security/2022/dsa-5272 third party advisory vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TJOMUNGW6VTK5CZZRLWLVVEOUPEQBRHI/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/ vendor advisory
https://security.gentoo.org/glsa/202402-07 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-33746?
CVE-2022-33746 has been scored as a medium severity vulnerability.
How to fix CVE-2022-33746?
To fix CVE-2022-33746, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-33746 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-33746 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-33746?
CVE-2022-33746 affects Xen xen.
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