{"id":"CVE-2024-12084","title":"A heap-based buffer overflow flaw was found in the rsync daemon","summary":"A heap-based buffer overflow flaw was found in the rsync daemon. This issue is due to improper handling of attacker-controlled checksum lengths (s2length) in the code. When MAX_DIGEST_LEN exceeds the fixed SUM_LENGTH (16 bytes), an attac…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-122","CWE-787"],"vendor":"samba","product":"rsync","affected":["rsync = 3.2.7","rsync = 3.3.0","almalinux = 10.0","arch_linux","linux","nixos < 24.11","nixos = 24.11","suse_linux","smartos < 20250123","enterprise_linux = 10.0"],"patched":["nixos 24.11","smartos 20250123"],"published":"2025-01-15","updated":"2026-06-25","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2024-12084","references":[{"url":"https://access.redhat.com/errata/RHBA-2025:6470","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2024-12084","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2330527","label":"secalert@redhat.com"},{"url":"https://kb.cert.org/vuls/id/952657","label":"secalert@redhat.com"},{"url":"http://www.openwall.com/lists/oss-security/2025/01/14/6","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20250131-0002/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.kb.cert.org/vuls/id/952657","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/google/security-research/security/advisories/GHSA-p5pg-x43v-mvqj","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","exploit-available"],"epss":0.72059,"epssPercentile":0.9942,"ingestedAt":"2026-06-29T13:24:34.150Z","exploits":{"github":3,"githubRepos":["https://github.com/themirze/cve-2024-12084","https://github.com/rxerium/CVE-2024-12084","https://github.com/InkeyP/CVE-2024-12084"],"checkedAt":"2026-09-21T15:27:00.980Z"},"exploitAvailable":true,"slug":"CVE-2024-12084","body":"## Overview\n\nA heap-based buffer overflow flaw was found in the rsync daemon. This issue is due to improper handling of attacker-controlled checksum lengths (s2length) in the code. When MAX_DIGEST_LEN exceeds the fixed SUM_LENGTH (16 bytes), an attacker can write out of bounds in the sum2 buffer.\n\n## Affected\n\n- `rsync = 3.2.7`\n- `rsync = 3.3.0`\n- `almalinux = 10.0`\n- `arch_linux`\n- `linux`\n- `nixos < 24.11`\n- `nixos = 24.11`\n- `suse_linux`\n- `smartos < 20250123`\n- `enterprise_linux = 10.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `nixos 24.11`\n- `smartos 20250123`","depth":"abyssal","depthScore":80,"depthScoreParts":{"impact":53.9,"likelihood":14.4,"exploitation":12,"ransomware":0},"changes":[{"seq":4765,"id":"CVE-2024-12084","ts":1788887205070,"field":"exploit_available","old":"false","new":"true"},{"seq":3648,"id":"CVE-2024-12084","ts":1788886321616,"field":"exploit_available","old":"true","new":"false"},{"seq":2499,"id":"CVE-2024-12084","ts":1788882989436,"field":"exploit_available","old":"false","new":"true"},{"seq":1528,"id":"CVE-2024-12084","ts":1788882403259,"field":"exploit_available","old":"true","new":"false"},{"seq":642,"id":"CVE-2024-12084","ts":1788881840509,"field":"exploit_available","old":"false","new":"true"}]}