{"id":"CVE-2021-4028","state":"PUBLISHED","title":"A flaw in the Linux kernel's implementation of RDMA communications manager listener code allowed an attacker with local access to setup a socket to listen on a high port allowing f","description":"A flaw in the Linux kernel's implementation of RDMA communications manager listener code allowed an attacker with local access to setup a socket to listen on a high port allowing for a list element to be used after free. Given the ability to execute code, a local attacker could leverage this use-after-free to crash the system or possibly escalate privileges on the system.","publishedAt":"2022-08-24T00:00:00.000Z","updatedAt":"2024-08-03T17:16:04.248Z","severity":null,"assigner":"redhat","products":["n/a kernel"],"affected":[{"vendor":"n/a","product":"kernel","versions":[{"version":"Fixed in kernel 5.15-rc1","status":"affected"}]}],"references":["https://lkml.org/lkml/2021/10/4/697","https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bc0bdc5afaa74","https://bugzilla.redhat.com/show_bug.cgi?id=2027201","https://access.redhat.com/security/cve/CVE-2021-4028","https://bugzilla.suse.com/show_bug.cgi?id=1193167#c0","https://security.netapp.com/advisory/ntap-20221228-0002/"],"weaknesses":["CWE-416"],"ingestedAt":"2026-10-29T19:49:23.890Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/4xxx/CVE-2021-4028.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-4028","state":"PUBLISHED","datePublished":"2022-08-24T00:00:00.000Z","dateUpdated":"2024-08-03T17:16:04.248Z","assignerShortName":"redhat","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","dateReserved":"2021-11-29T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"A flaw in the Linux kernel's implementation of RDMA communications manager listener code allowed an attacker with local access to setup a socket to listen on a high port allowing for a list element to be used after free. Given the ability to execute code, a local attacker could leverage this use-after-free to crash the system or possibly escalate privileges on the system."}],"affected":[{"vendor":"n/a","product":"kernel","versions":[{"version":"Fixed in kernel 5.15-rc1","status":"affected"}]}],"references":[{"url":"https://lkml.org/lkml/2021/10/4/697"},{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bc0bdc5afaa74"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2027201"},{"url":"https://access.redhat.com/security/cve/CVE-2021-4028"},{"url":"https://bugzilla.suse.com/show_bug.cgi?id=1193167#c0"},{"url":"https://security.netapp.com/advisory/ntap-20221228-0002/"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-416","type":"CWE","lang":"en","description":"CWE-416 - Use After Free"}]}],"providerMetadata":{"shortName":"redhat","orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","dateUpdated":"2022-12-28T00:00:00.000Z"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://lkml.org/lkml/2021/10/4/697","tags":["x_transferred"]},{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bc0bdc5afaa74","tags":["x_transferred"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2027201","tags":["x_transferred"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-4028","tags":["x_transferred"]},{"url":"https://bugzilla.suse.com/show_bug.cgi?id=1193167#c0","tags":["x_transferred"]},{"url":"https://security.netapp.com/advisory/ntap-20221228-0002/","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T17:16:04.248Z"}}]}}}