CVE-2022-33745 (GCVE-0-2022-33745)
Vulnerability from cvelistv5
Published
2022-07-26 00:00
Modified
2024-08-03 08:09
Severity ?
CWE
  • unknown
Summary
insufficient TLB flush for x86 PV guests in shadow mode For migration as well as to work around kernels unaware of L1TF (see XSA-273), PV guests may be run in shadow paging mode. To address XSA-401, code was moved inside a function in Xen. This code movement missed a variable changing meaning / value between old and new code positions. The now wrong use of the variable did lead to a wrong TLB flush condition, omitting flushes where such are necessary.
References
security@xen.org http://www.openwall.com/lists/oss-security/2022/07/26/2 Mailing List, Patch, Third Party Advisory
security@xen.org http://www.openwall.com/lists/oss-security/2022/07/26/3 Mailing List, Patch, Third Party Advisory
security@xen.org http://xenbits.xen.org/xsa/advisory-408.html Patch, Vendor Advisory
security@xen.org https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HUFIMNGYP5VQAA6KE3T2I5GW6UP6F7BS/
security@xen.org https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MYI3OMJ7RIZNL3C6GUWNANNPEUUID6FM/
security@xen.org https://www.debian.org/security/2022/dsa-5272 Third Party Advisory
security@xen.org https://xenbits.xenproject.org/xsa/advisory-408.txt Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 http://www.openwall.com/lists/oss-security/2022/07/26/2 Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 http://www.openwall.com/lists/oss-security/2022/07/26/3 Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 http://xenbits.xen.org/xsa/advisory-408.html Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HUFIMNGYP5VQAA6KE3T2I5GW6UP6F7BS/
af854a3a-2127-422b-91ae-364da2661108 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MYI3OMJ7RIZNL3C6GUWNANNPEUUID6FM/
af854a3a-2127-422b-91ae-364da2661108 https://www.debian.org/security/2022/dsa-5272 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://xenbits.xenproject.org/xsa/advisory-408.txt Vendor Advisory
Impacted products
Vendor Product Version
Xen xen Create a notification for this product.
Show details on NVD website

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