{"id":"CVE-2023-3439","state":"PUBLISHED","title":"A flaw was found in the MCTP protocol in the Linux kernel. The function mctp_unregister() reclaims the device's relevant resource when a netcard detaches. However, a running routin","description":"A flaw was found in the MCTP protocol in the Linux kernel. The function mctp_unregister() reclaims the device's relevant resource when a netcard detaches. However, a running routine may be unaware of this and cause the use-after-free of the mdev->addrs object, potentially leading to a denial of service.","publishedAt":"2023-06-28T00:00:00.000Z","updatedAt":"2025-03-10T21:08:54.880Z","severity":{"score":4.7,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"fedora","products":["n/a Linux Kernel (mctp)"],"affected":[{"vendor":"n/a","product":"Linux Kernel (mctp)","versions":[{"version":"Fixed in kernel 5.18-rc5","status":"affected"}]}],"references":["https://bugzilla.redhat.com/show_bug.cgi?id=2217915","https://github.com/torvalds/linux/commit/b561275d633bcd8e0e8055ab86f1a13df75a0269","http://www.openwall.com/lists/oss-security/2023/07/02/1"],"weaknesses":["CWE-416"],"ingestedAt":"2026-10-29T20:06:08.715Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/3xxx/CVE-2023-3439.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-3439","state":"PUBLISHED","datePublished":"2023-06-28T00:00:00.000Z","dateUpdated":"2025-03-10T21:08:54.880Z","assignerShortName":"fedora","assignerOrgId":"92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5","dateReserved":"2023-06-28T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"A flaw was found in the MCTP protocol in the Linux kernel. The function mctp_unregister() reclaims the device's relevant resource when a netcard detaches. However, a running routine may be unaware of this and cause the use-after-free of the mdev->addrs object, potentially leading to a denial of service."}],"affected":[{"vendor":"n/a","product":"Linux Kernel (mctp)","versions":[{"version":"Fixed in kernel 5.18-rc5","status":"affected"}]}],"references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2217915"},{"url":"https://github.com/torvalds/linux/commit/b561275d633bcd8e0e8055ab86f1a13df75a0269"},{"url":"http://www.openwall.com/lists/oss-security/2023/07/02/1","name":"[oss-security] 20230702 CVE-2023-3439: Linux MCTP use-after-free in mctp_sendmsg","tags":["mailing-list"]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-416","type":"CWE","lang":"en","description":"CWE-416"}]}],"providerMetadata":{"shortName":"fedora","orgId":"92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5","dateUpdated":"2023-07-02T00:00:00.000Z"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2217915","tags":["x_transferred"]},{"url":"https://github.com/torvalds/linux/commit/b561275d633bcd8e0e8055ab86f1a13df75a0269","tags":["x_transferred"]},{"url":"http://www.openwall.com/lists/oss-security/2023/07/02/1","name":"[oss-security] 20230702 CVE-2023-3439: Linux MCTP use-after-free in mctp_sendmsg","tags":["mailing-list","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-02T06:55:03.477Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":4.7,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"HIGH","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-03-06T15:55:04.331859Z","id":"CVE-2023-3439","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-03-10T21:08:54.880Z"}}]}}}