{"id":"CVE-2023-5717","title":"A heap out-of-bounds write vulnerability in the Linux kernel's Linux Kernel Performance Events (perf) component can be exploited to achieve local privilege escalation.\n\nIf perf_read_group() is called while an event's sibling_list is smal…","summary":"A heap out-of-bounds write vulnerability in the Linux kernel's Linux Kernel Performance Events (perf) component can be exploited to achieve local privilege escalation.\n\nIf perf_read_group() is called while an event's sibling_list is smal…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-787"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 3.2.95, < 3.3","linux_kernel >= 3.16.50, < 3.17","linux_kernel >= 4.4, < 4.14.328","linux_kernel >= 4.15, < 4.19.297","linux_kernel >= 4.20, < 5.4.259","linux_kernel >= 5.5, < 5.10.199","linux_kernel >= 5.11, < 5.15.137","linux_kernel >= 5.16, < 6.1.60","linux_kernel >= 6.2, < 6.5.9","linux_kernel = 6.6"],"patched":["linux_kernel 6.5.9"],"published":"2023-10-25","updated":"2026-10-14","sourceUpdated":"2026-10-14T22:17:21.290","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2023-5717","references":[{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/kernel/events?id=32671e3799ca2e4590773fd0e63aaa4229e50c06","label":"cve-coordination@google.com"},{"url":"https://kernel.dance/32671e3799ca2e4590773fd0e63aaa4229e50c06","label":"cve-coordination@google.com"},{"url":"https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html","label":"cve-coordination@google.com"},{"url":"https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html","label":"cve-coordination@google.com"},{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/kernel/events?id=32671e3799ca2e4590773fd0e63aaa4229e50c06","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://kernel.dance/32671e3799ca2e4590773fd0e63aaa4229e50c06","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-398330.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-613116.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-769027.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","exploit-available","cve.org"],"epss":0.00909,"epssPercentile":0.59774,"exploits":{"github":1,"githubRepos":["https://github.com/uthrasri/CVE-2023-5717"],"checkedAt":"2026-10-27T16:41:26.996Z"},"exploitAvailable":true,"ingestedAt":"2026-10-14T23:00:02.006Z","ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2024-05-10T04:00:16.642573Z"},"slug":"CVE-2023-5717","body":"## Overview\n\nA heap out-of-bounds write vulnerability in the Linux kernel's Linux Kernel Performance Events (perf) component can be exploited to achieve local privilege escalation.\n\nIf perf_read_group() is called while an event's sibling_list is smaller than its child's sibling_list, it can increment or write to memory locations outside of the allocated buffer.\n\nWe recommend upgrading past commit 32671e3799ca2e4590773fd0e63aaa4229e50c06.\n\n## Affected\n\n- `linux_kernel >= 3.2.95, < 3.3`\n- `linux_kernel >= 3.16.50, < 3.17`\n- `linux_kernel >= 4.4, < 4.14.328`\n- `linux_kernel >= 4.15, < 4.19.297`\n- `linux_kernel >= 4.20, < 5.4.259`\n- `linux_kernel >= 5.5, < 5.10.199`\n- `linux_kernel >= 5.11, < 5.15.137`\n- `linux_kernel >= 5.16, < 6.1.60`\n- `linux_kernel >= 6.2, < 6.5.9`\n- `linux_kernel = 6.6`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.5.9`","depth":"midnight","depthScore":55,"depthScoreParts":{"impact":42.9,"likelihood":0.2,"exploitation":12,"ransomware":0},"changes":[]}