{"id":"CVE-2022-1012","title":"A memory leak problem was found in the TCP source port generation algorithm in net/ipv4/tcp.c due to the small table perturb size","summary":"A memory leak problem was found in the TCP source port generation algorithm in net/ipv4/tcp.c due to the small table perturb size. This flaw may allow an attacker to information leak and may cause a denial of service problem.","severity":"high","cvss":8.2,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","cwe":["CWE-401","CWE-401"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel < 5.18","linux_kernel = 5.18"],"patched":["linux_kernel 5.18"],"published":"2022-08-05","updated":"2026-10-14","sourceUpdated":"2026-10-14T13:17:15.887","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2022-1012","references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2064604","label":"secalert@redhat.com"},{"url":"https://lore.kernel.org/lkml/20220427065233.2075-1-w%401wt.eu/T/","label":"secalert@redhat.com"},{"url":"https://security.netapp.com/advisory/ntap-20221020-0006/","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2064604","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lore.kernel.org/lkml/20220427065233.2075-1-w%401wt.eu/T/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20221020-0006/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-561322.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-794697.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd"],"epss":0.04117,"epssPercentile":0.90568,"ingestedAt":"2026-10-14T13:30:58.416Z","slug":"CVE-2022-1012","body":"## Overview\n\nA memory leak problem was found in the TCP source port generation algorithm in net/ipv4/tcp.c due to the small table perturb size. This flaw may allow an attacker to information leak and may cause a denial of service problem.\n\n## Affected\n\n- `linux_kernel < 5.18`\n- `linux_kernel = 5.18`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 5.18`","depth":"twilight","depthScore":46,"depthScoreParts":{"impact":45.1,"likelihood":0.8,"exploitation":0,"ransomware":0},"changes":[]}