Vulnerability Details : 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.
Products affected by CVE-2022-33748
- 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-2022-33748
0.02%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 4 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-33748
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.6
|
MEDIUM | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H |
1.1
|
4.0
|
NIST |
CWE ids for CVE-2022-33748
-
The product does not handle or incorrectly handles an exceptional condition.Assigned by: nvd@nist.gov (Primary)
References for CVE-2022-33748
-
https://www.debian.org/security/2022/dsa-5272
Debian -- Security Information -- DSA-5272-1 xenThird Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XWSC77GS5NATI3TT7FMVPULUPXR635XQ/
[SECURITY] Fedora 36 Update: xen-4.16.2-2.fc36 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
http://www.openwall.com/lists/oss-security/2022/10/11/2
oss-security - Xen Security Advisory 411 v3 (CVE-2022-33748) - lock order inversion in transitive grant copy handlingMailing List;Mitigation;Patch;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TJOMUNGW6VTK5CZZRLWLVVEOUPEQBRHI/
[SECURITY] Fedora 37 Update: xen-4.16.2-2.fc37 - package-announce - Fedora Mailing-Lists
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TJOMUNGW6VTK5CZZRLWLVVEOUPEQBRHI/
[SECURITY] Fedora 37 Update: xen-4.16.2-2.fc37 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://xenbits.xenproject.org/xsa/advisory-411.txt
Mitigation;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
-
http://xenbits.xen.org/xsa/advisory-411.html
XSA-411 - Xen Security AdvisoriesMitigation;Patch;Vendor Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XWSC77GS5NATI3TT7FMVPULUPXR635XQ/
[SECURITY] Fedora 36 Update: xen-4.16.2-2.fc36 - package-announce - Fedora Mailing-Lists
-
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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