{"id":"SUSE-SU-2026:4021-1","summary":"Security update for c-ares","details":"This update for c-ares fixes the following issues:\n\n- CVE-2024-25629: out of bounds read in ares__read_line() (bsc#1220279).\n- CVE-2025-31498: use-after-free in read_answers() when process_answer() may re-enqueue a query (bsc#1240955).\n- CVE-2025-62408: c-ares 1.32.3-1.34.5 use after free() (bsc#1254738).\n- CVE-2026-33630: Use-after-free / double-free in c-ares query-completion handling, remotely triggerable via\n  ares_getaddrinfo() over TCP (bsc#1270416).\n- CVE-2026-69184: CPU-exhaustion denial of service via unbounded DNS name compression pointer chains (bsc#1276290).\n- CVE-2026-69186: Memory-amplification denial of service via unvalidated DNS header record counts (bsc#1276291).\n\nChanges for c-ares:\n\n- updated to 1.36.8.\n","modified":"2026-09-13T18:23:16.109232489Z","published":"2026-09-07T07:42:20Z","related":["CVE-2024-25629","CVE-2025-31498","CVE-2025-62408","CVE-2026-33630","CVE-2026-69184","CVE-2026-69186"],"upstream":["CVE-2024-25629","CVE-2025-31498","CVE-2025-62408","CVE-2026-33630","CVE-2026-69184","CVE-2026-69186"],"references":[{"type":"ADVISORY","url":"https://www.suse.com/support/update/announcement/2026/suse-su-20264021-1/"},{"type":"REPORT","url":"https://bugzilla.suse.com/1220279"},{"type":"REPORT","url":"https://bugzilla.suse.com/1240955"},{"type":"REPORT","url":"https://bugzilla.suse.com/1254738"},{"type":"REPORT","url":"https://bugzilla.suse.com/1270416"},{"type":"REPORT","url":"https://bugzilla.suse.com/1276290"},{"type":"REPORT","url":"https://bugzilla.suse.com/1276291"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2024-25629"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2025-31498"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2025-62408"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-33630"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-69184"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-69186"}],"affected":[{"package":{"name":"c-ares","ecosystem":"SUSE:Linux 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