{"id":"CVE-2017-9438","aliases":["DEBIAN-CVE-2017-9438","EUVD-2017-18371","GHSA-24f8-4r56-7793","UBUNTU-CVE-2017-9438"],"status":"published","title":"libyara/re.c in the regexp module in YARA 3.5.0 allows remote attackers to cause a denial of...","description":"libyara/re.c in the regexp module in YARA 3.5.0 allows remote attackers to cause a denial of service (stack consumption) via a crafted rule (involving hex strings) that is mishandled in the _yr_re_emit function, a different vulnerability than CVE-2017-9304.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02549,"percentile":0.8513,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-674"],"published":"2017-06-05T17:00:00Z","modified":"2026-10-20T13:26:23Z","fixes":[{"ecosystem":"Debian:12","package":"yara","fixed_in":["3.6.1+dfsg-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"yara","fixed_in":["3.6.1+dfsg-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"yara","fixed_in":["3.6.1+dfsg-1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:16.04:LTS","package":"yara","fixed_in":["3.4.0+dfsg-2ubuntu0.1~esm1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"yara","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.1+dfsg-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"yara","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.1+dfsg-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"yara","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.1+dfsg-1"}]}]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"yara","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4.0+dfsg-2ubuntu0.1~esm1"}]}],"versions":["3.4.0+dfsg-2","3.4.0+dfsg-2build1"]}],"products":[{"vendor":"virustotal","product":"yara"}],"references":[{"url":"https://github.com/VirusTotal/yara/issues/674","tags":["x_refsource_CONFIRM","x_transferred","Issue 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in the regexp module in YARA 3.5.0 allows remote attackers to cause a denial of service (stack consumption) via a crafted rule (involving hex strings) that is mishandled in the _yr_re_emit function, a different vulnerability than CVE-2017-9304.","status":"published","published":"2017-06-05T17:00:00Z","modified":"2024-08-05T17:11:00.393Z","updated_at":"2026-11-02T14:33:13.96587Z"}],"euvd":[{"id":"EUVD-2017-18371","description":"libyara/re.c in the regexp module in YARA 3.5.0 allows remote attackers to cause a denial of service (stack consumption) via a crafted rule (involving hex strings) that is mishandled in the _yr_re_emit function, a different vulnerability than CVE-2017-9304.","status":"published","published":"2017-06-05T17:00:00Z","modified":"2024-08-05T17:11:00Z","updated_at":"2026-11-03T02:23:28.210565Z"}],"ghsa":[{"id":"GHSA-24f8-4r56-7793","title":"libyara/re.c in the regexp module in YARA 3.5.0 allows remote attackers to cause a denial of...","description":"libyara/re.c in 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CVE-2017-9304.","status":"published","published":"2017-06-05T17:29:00.183Z","modified":"2026-06-17T01:28:06.26Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-674"],"updated_at":"2026-11-02T14:03:49.449157Z"}],"osv":[{"id":"CVE-2017-9438","description":"libyara/re.c in the regexp module in YARA 3.5.0 allows remote attackers to cause a denial of service (stack consumption) via a crafted rule (involving hex strings) that is mishandled in the _yr_re_emit function, a different vulnerability than 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via a crafted rule (involving hex strings) that is mishandled in the _yr_re_emit function, a different vulnerability than CVE-2017-9304.","status":"published","published":"2017-06-05T17:29:00Z","modified":"2026-04-22T11:37:30.467057Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:16.154988Z"}]}}