{"id":"CVE-2024-0639","title":"A denial of service vulnerability due to a deadlock was found in sctp_auto_asconf_init in net/sctp/socket.c in the Linux kernel’s SCTP subsystem","summary":"A denial of service vulnerability due to a deadlock was found in sctp_auto_asconf_init in net/sctp/socket.c in the Linux kernel’s SCTP subsystem. This flaw allows guests with local user privileges to trigger a deadlock and potentially cr…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-833","CWE-667"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel <= 6.4.16","enterprise_linux = 8.0","enterprise_linux = 9.0"],"published":"2024-01-17","updated":"2026-07-21","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2024-0639","references":[{"url":"https://access.redhat.com/errata/RHSA-2023:6583","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2024-0639","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2258754","label":"secalert@redhat.com"},{"url":"https://github.com/torvalds/linux/commit/6feb37b3b06e9049e20dcf7e23998f92c9c5be9a","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2024-0639","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2258754","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/torvalds/linux/commit/6feb37b3b06e9049e20dcf7e23998f92c9c5be9a","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.00176,"epssPercentile":0.07381,"ingestedAt":"2026-07-21T19:53:39.261Z","slug":"CVE-2024-0639","body":"## Overview\n\nA denial of service vulnerability due to a deadlock was found in sctp_auto_asconf_init in net/sctp/socket.c in the Linux kernel’s SCTP subsystem. This flaw allows guests with local user privileges to trigger a deadlock and potentially crash the system.\n\n## Affected\n\n- `linux_kernel <= 6.4.16`\n- `enterprise_linux = 8.0`\n- `enterprise_linux = 9.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}