What’s Vulnerable › Vulnerabilities

CVE-2022-33746

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-10-11 · updated 2026-06-17
• Weakness: CWE-404

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.

Affected products

• Debian Linux: 11.0
• Fedoraproject Fedora: 35, 36, 37
• xen: from 4.13.0 through 4.16.1

References

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

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