{"id":"CVE-2024-31143","state":"PUBLISHED","title":"double unlock in x86 guest IRQ handling","description":"An optional feature of PCI MSI called \"Multiple Message\" allows a\ndevice to use multiple consecutive interrupt vectors.  Unlike for MSI-X,\nthe setting up of these consecutive vectors needs to happen all in one\ngo.  In this handling an error path could be taken in different\nsituations, with or without a particular lock held.  This error path\nwrongly releases the lock even when it is not currently held.\n","publishedAt":"2024-07-18T13:31:31.244Z","updatedAt":"2025-04-26T20:03:16.232Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"XEN","products":["Xen Xen"],"affected":[{"vendor":"Xen","product":"Xen","defaultStatus":"unknown","versions":[{"version":"consult Xen advisory XSA-458","status":"unknown"}]}],"references":["https://xenbits.xenproject.org/xsa/advisory-458.html","http://www.openwall.com/lists/oss-security/2024/07/16/3","http://xenbits.xen.org/xsa/advisory-458.html"],"weaknesses":["CWE-832"],"ingestedAt":"2026-10-29T20:07:21.467Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/31xxx/CVE-2024-31143.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2024-31143","state":"PUBLISHED","datePublished":"2024-07-18T13:31:31.244Z","dateUpdated":"2025-04-26T20:03:16.232Z","assignerShortName":"XEN","assignerOrgId":"23aa2041-22e1-471f-9209-9b7396fa234f","dateReserved":"2024-03-28T18:14:12.892Z"},"containers":{"cna":{"title":"double unlock in x86 guest IRQ handling","descriptions":[{"lang":"en","value":"An optional feature of PCI MSI called \"Multiple Message\" allows a\ndevice to use multiple consecutive interrupt vectors.  Unlike for MSI-X,\nthe setting up of these consecutive vectors needs to happen all in one\ngo.  In this handling an error path could be taken in different\nsituations, with or without a particular lock held.  This error path\nwrongly releases the lock even when it is not currently held.\n"}],"affected":[{"vendor":"Xen","product":"Xen","defaultStatus":"unknown","versions":[{"version":"consult Xen advisory XSA-458","status":"unknown"}]}],"references":[{"url":"https://xenbits.xenproject.org/xsa/advisory-458.html"}],"providerMetadata":{"shortName":"XEN","orgId":"23aa2041-22e1-471f-9209-9b7396fa234f","dateUpdated":"2024-07-18T13:31:31.244Z"},"datePublic":"2024-07-16T11:59:00.000Z","impacts":[{"descriptions":[{"lang":"en","value":"Denial of Service (DoS) affecting the entire host, crashes, information\nleaks, or elevation of privilege all cannot be ruled out.\n"}]}],"configurations":[{"lang":"en","value":"Xen versions 4.4 and newer are vulnerable.  Xen versions 4.3 and older\nare not vulnerable.\n\nOnly x86 guest which have a multi-vector MSI capable device passed\nthrough to them can leverage the vulnerability.\n"}],"workarounds":[{"lang":"en","value":"Not passing through multi-vector MSI capable devices to x86 guests will\navoid the vulnerability.\n"}],"credits":[{"lang":"en","type":"finder","value":"This issue was discovered by Jan Beulich of SUSE.\n"}]},"adp":[{"title":"CVE Program Container","references":[{"url":"https://xenbits.xenproject.org/xsa/advisory-458.html","tags":["x_transferred"]},{"url":"http://www.openwall.com/lists/oss-security/2024/07/16/3"},{"url":"http://xenbits.xen.org/xsa/advisory-458.html"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-04-26T20:03:16.232Z"}},{"title":"CISA ADP Vulnrichment","affected":[{"vendor":"xen","product":"xen","defaultStatus":"unknown","versions":[{"version":"4.4","status":"affected","lessThan":"4.16","versionType":"custom"}],"cpes":["cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*"]}],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.5,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"HIGH","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2024-08-21T13:31:44.467773Z","id":"CVE-2024-31143","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-832","type":"CWE","lang":"en","description":"CWE-832 Unlock of a Resource that is not Locked"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-08-21T13:39:34.427Z"}}]}}}