{"id":"CVE-2023-3268","title":"An out of bounds (OOB) memory access flaw was found in the Linux kernel in relay_file_read_start_pos in kernel/relay.c in the relayfs","summary":"An out of bounds (OOB) memory access flaw was found in the Linux kernel in relay_file_read_start_pos in kernel/relay.c in the relayfs. This flaw could allow a local attacker to crash the system or leak kernel internal information.","severity":"high","cvss":7.1,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","cwe":["CWE-125","CWE-125"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel < 6.4","debian_linux = 10.0","debian_linux = 11.0","debian_linux = 12.0"],"patched":["linux_kernel 6.4"],"published":"2023-06-16","updated":"2026-08-24","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2023-3268","references":[{"url":"https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.2","label":"secalert@redhat.com"},{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=43ec16f1450f4936025a9bdf1a273affdb9732c1","label":"secalert@redhat.com"},{"url":"https://lists.debian.org/debian-lts-announce/2023/07/msg00030.html","label":"secalert@redhat.com"},{"url":"https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html","label":"secalert@redhat.com"},{"url":"https://lore.kernel.org/lkml/1682238502-1892-1-git-send-email-yangpc%40wangsu.com/T/","label":"secalert@redhat.com"},{"url":"https://security.netapp.com/advisory/ntap-20230824-0006/","label":"secalert@redhat.com"},{"url":"https://www.debian.org/security/2023/dsa-5448","label":"secalert@redhat.com"},{"url":"https://www.debian.org/security/2023/dsa-5480","label":"secalert@redhat.com"},{"url":"https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.2","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=43ec16f1450f4936025a9bdf1a273affdb9732c1","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2023/07/msg00030.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lore.kernel.org/lkml/1682238502-1892-1-git-send-email-yangpc%40wangsu.com/T/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20230824-0006/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2023/dsa-5448","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2023/dsa-5480","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.00477,"epssPercentile":0.40212,"ingestedAt":"2026-08-24T16:07:20.502Z","slug":"CVE-2023-3268","body":"## Overview\n\nAn out of bounds (OOB) memory access flaw was found in the Linux kernel in relay_file_read_start_pos in kernel/relay.c in the relayfs. This flaw could allow a local attacker to crash the system or leak kernel internal information.\n\n## Affected\n\n- `linux_kernel < 6.4`\n- `debian_linux = 10.0`\n- `debian_linux = 11.0`\n- `debian_linux = 12.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.4`","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":39.1,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}