{"id":"CVE-2021-3923","state":"PUBLISHED","title":"A flaw was found in the Linux kernel's implementation of RDMA over infiniband. An attacker with a privileged local account can leak kernel stack information when issuing commands t","description":"A flaw was found in the Linux kernel's implementation of RDMA over infiniband. An attacker with a privileged local account can leak kernel stack information when issuing commands to the /dev/infiniband/rdma_cm device node. While this access is unlikely to leak sensitive user information, it can be further used to defeat existing kernel protection mechanisms.","publishedAt":"2023-03-27T00:00:00.000Z","updatedAt":"2025-02-24T19:19:01.209Z","severity":{"score":2.3,"label":"Low","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N","source":"CISA-ADP"},"assigner":"redhat","products":["n/a kernel"],"affected":[{"vendor":"n/a","product":"kernel","versions":[{"version":"unknown","status":"affected"}]}],"references":["https://bugzilla.redhat.com/show_bug.cgi?id=2019643","https://lore.kernel.org/all/20220204100036.GA12348%40kili/"],"weaknesses":["CWE-200"],"ingestedAt":"2026-10-29T19:48:55.807Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/3xxx/CVE-2021-3923.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-3923","state":"PUBLISHED","datePublished":"2023-03-27T00:00:00.000Z","dateUpdated":"2025-02-24T19:19:01.209Z","assignerShortName":"redhat","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","dateReserved":"2021-11-03T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"A flaw was found in the Linux kernel's implementation of RDMA over infiniband. An attacker with a privileged local account can leak kernel stack information when issuing commands to the /dev/infiniband/rdma_cm device node. While this access is unlikely to leak sensitive user information, it can be further used to defeat existing kernel protection mechanisms."}],"affected":[{"vendor":"n/a","product":"kernel","versions":[{"version":"unknown","status":"affected"}]}],"references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2019643"},{"url":"https://lore.kernel.org/all/20220204100036.GA12348%40kili/"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-200","type":"CWE","lang":"en","description":"CWE-200"}]}],"providerMetadata":{"shortName":"redhat","orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","dateUpdated":"2023-03-27T00:00:00.000Z"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2019643","tags":["x_transferred"]},{"url":"https://lore.kernel.org/all/20220204100036.GA12348%40kili/","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T17:09:09.735Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":2.3,"attackVector":"LOCAL","baseSeverity":"LOW","vectorString":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"HIGH","confidentialityImpact":"LOW"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-02-24T19:18:29.423811Z","id":"CVE-2021-3923","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":"2025-02-24T19:19:01.209Z"}}]}}}