Vulnerability Monitor

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CVE-2022-33748

lock order inversion in transitive grant copy handling As part of XSA-226 a missing cleanup call was inserted on an error handling path. While doing so, locking requirements were not paid attention to. As a result two cooperating guests granting each other transitive grants can cause locks to be acquired nested within one another, but in respectively opposite order. With suitable timing between the involved grant copy operations this may result in the locking up of a CPU.

Published

2022-10-11T13:15:10.147

Last Modified

2024-11-21T07:08:27.827

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.6 (MEDIUM)

Weaknesses

Type: Primary
CWE-755

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	xen	xen	≥ 4.0	Yes
Operating System	fedoraproject	fedora	35	Yes
Operating System	fedoraproject	fedora	36	Yes
Operating System	fedoraproject	fedora	37	Yes
Operating System	debian	debian_linux	11.0	Yes

References

http://www.openwall.com/lists/oss-security/2022/10/11/2 Mailing List, Mitigation, Patch, Third Party Advisory ([email protected])
http://xenbits.xen.org/xsa/advisory-411.html Mitigation, Patch, Vendor Advisory ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TJOMUNGW6VTK5CZZRLWLVVEOUPEQBRHI/ ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XWSC77GS5NATI3TT7FMVPULUPXR635XQ/ ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/ ([email protected])
https://security.gentoo.org/glsa/202402-07 ([email protected])
https://www.debian.org/security/2022/dsa-5272 Third Party Advisory ([email protected])
https://xenbits.xenproject.org/xsa/advisory-411.txt Mitigation, Patch, Vendor Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2022/10/11/2 Mailing List, Mitigation, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://xenbits.xen.org/xsa/advisory-411.html Mitigation, Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TJOMUNGW6VTK5CZZRLWLVVEOUPEQBRHI/ (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XWSC77GS5NATI3TT7FMVPULUPXR635XQ/ (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/ (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/202402-07 (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-411.txt Mitigation, Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)