{"id":"CVE-2017-9869","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-9869","generatedAt":"2026-10-28T20:05:52.391Z","title":"The II_step_one function in layer2.c in mpglib, as used in libmpgdecoder.a in LAME 3.99.5 and other products, allows remote attackers to cause a denial of service (buffer over-read and application crash) via a crafted audio file.","description":"The II_step_one function in layer2.c in mpglib, as used in libmpgdecoder.a in LAME 3.99.5 and other products, allows remote attackers to cause a denial of service (buffer over-read and application crash) via a crafted audio file.","published":"2017-06-25T19:29:00.000Z","lastModified":"2026-06-17T01:29:05.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":5.5,"severity":"MEDIUM","vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},"cwe":["CWE-125"],"affected":["lame project/lame"],"epss":{"score":0.04065,"percentile":0.90611,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2017-06-26","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":42258,"kind":"exploit","title":"LAME 3.99.5 - 'II_step_one' Buffer Overflow","url":"https://www.exploit-db.com/exploits/42258","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux/dos/42258.txt","file":"exploits/linux/dos/42258.txt","published":"2017-06-26","added":"2017-06-26","updated":"2017-06-26","author":"Agostino Sarubbo","type":"dos","platform":"linux","port":null,"verified":true,"codes":["CVE-2017-9869"],"tags":"Denial of Service (DoS)","aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://blogs.gentoo.org/ago/2017/06/17/lame-global-buffer-overflow-in-ii_step_one-layer2-c/"}]},"verdict":{"level":"high","text":"A public exploit is published in Exploit-DB (verified), so the technical barrier is gone even though the severity is medium and EPSS is 4.1%. Treat it as high on anything reachable from the internet."},"changes":[],"references":[{"url":"http://www.securityfocus.com/bid/99272","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://blogs.gentoo.org/ago/2017/06/17/lame-global-buffer-overflow-in-ii_step_one-layer2-c/","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://www.exploit-db.com/exploits/42258/","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/99272","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://blogs.gentoo.org/ago/2017/06/17/lame-global-buffer-overflow-in-ii_step_one-layer2-c/","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/42258/","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-9869","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}