{"id":"CVE-2024-0646","title":"An out-of-bounds memory write flaw was found in the Linux kernel’s Transport Layer Security functionality in how a user calls a function splice with a ktls socket as the destination","summary":"An out-of-bounds memory write flaw was found in the Linux kernel’s Transport Layer Security functionality in how a user calls a function splice with a ktls socket as the destination. This flaw allows a local user to crash or potentially …","severity":"high","cvss":7,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-787","CWE-787"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 4.20, < 5.4.267","linux_kernel >= 5.5, < 5.10.208","linux_kernel >= 5.11, < 5.15.147","linux_kernel >= 5.16, < 6.1.69","linux_kernel >= 6.2, < 6.6.7","linux_kernel = 6.7","enterprise_linux = 8.0","enterprise_linux = 9.0"],"patched":["linux_kernel 6.6.7"],"published":"2024-01-17","updated":"2026-08-06","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2024-0646","references":[{"url":"https://access.redhat.com/errata/RHSA-2024:0723","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:0724","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:0725","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:0850","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:0851","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:0876","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:0881","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:0897","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:1248","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:1250","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:1251","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:1253","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:1268","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:1269","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:1278","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:1306","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:1367","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:1368","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:1377","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:1382","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:1404","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:2094","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2024-0646","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2253908","label":"secalert@redhat.com"},{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c5a595000e267","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:0723","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:0724","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:0725","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:0850","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:0851","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:0876","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:0881","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:0897","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:1248","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:1250","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:1251","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:1253","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:1268","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:1269","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:1278","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:1306","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:1367","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:1368","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:1377","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:1382","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:1404","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:2094","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/security/cve/CVE-2024-0646","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2253908","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c5a595000e267","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.00308,"epssPercentile":0.23769,"ingestedAt":"2026-08-06T23:06:28.962Z","slug":"CVE-2024-0646","body":"## Overview\n\nAn out-of-bounds memory write flaw was found in the Linux kernel’s Transport Layer Security functionality in how a user calls a function splice with a ktls socket as the destination. This flaw allows a local user to crash or potentially escalate their privileges on the system.\n\n## Affected\n\n- `linux_kernel >= 4.20, < 5.4.267`\n- `linux_kernel >= 5.5, < 5.10.208`\n- `linux_kernel >= 5.11, < 5.15.147`\n- `linux_kernel >= 5.16, < 6.1.69`\n- `linux_kernel >= 6.2, < 6.6.7`\n- `linux_kernel = 6.7`\n- `enterprise_linux = 8.0`\n- `enterprise_linux = 9.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.6.7`","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":38.5,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}