{"id":"CVE-2011-1137","url":"https://www.cyber-defence.io/tools/cve/CVE-2011-1137","generatedAt":"2026-10-27T18:47:07.026Z","title":"Integer overflow in the mod_sftp (aka SFTP) module in ProFTPD 1.3.3d and earlier allows remote attackers to cause a denial of service (memory consumption leading to OOM kill) via a malformed SSH message.","description":"Integer overflow in the mod_sftp (aka SFTP) module in ProFTPD 1.3.3d and earlier allows remote attackers to cause a denial of service (memory consumption leading to OOM kill) via a malformed SSH message.","published":"2011-03-11T17:55:03.000Z","lastModified":"2026-06-16T23:28:47.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":5,"severity":"MEDIUM","vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P"},"cwe":["CWE-189"],"affected":["proftpd/proftpd"],"epss":{"score":0.28068,"percentile":0.98094,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2011-02-07","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":16129,"kind":"exploit","title":"ProFTPd - 'mod_sftp' Integer Overflow Denial of Service (PoC)","url":"https://www.exploit-db.com/exploits/16129","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux/dos/16129.txt","file":"exploits/linux/dos/16129.txt","published":"2011-02-07","added":"2011-02-07","updated":"2017-08-29","author":"kingcope","type":"dos","platform":"linux","port":null,"verified":false,"codes":["CVE-2011-1137","OSVDB-70868"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 28.1%, higher than 98% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://bugs.proftpd.org/show_bug.cgi?id=3586","tags":["Patch"],"source":"cve@mitre.org"},{"url":"http://bugs.proftpd.org/show_bug.cgi?id=3587","source":"cve@mitre.org"},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058344.html","source":"cve@mitre.org"},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058356.html","source":"cve@mitre.org"},{"url":"http://proftp.cvs.sourceforge.net/viewvc/proftp/proftpd/contrib/mod_sftp/mod_sftp.c?r1=1.29.2.1&r2=1.29.2.2","tags":["Patch"],"source":"cve@mitre.org"},{"url":"http://proftp.cvs.sourceforge.net/viewvc/proftp/proftpd/contrib/mod_sftp/packet.c?r1=1.14.2.2&r2=1.14.2.3","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://proftp.cvs.sourceforge.net/viewvc/proftp/proftpd/contrib/mod_sftp/packet.h?r1=1.3&r2=1.3.2.1","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/43234","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/43635","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/43978","source":"cve@mitre.org"},{"url":"http://slackware.com/security/viewer.php?l=slackware-security&y=2011&m=slackware-security.485806","source":"cve@mitre.org"},{"url":"http://www.debian.org/security/2011/dsa-2185","source":"cve@mitre.org"},{"url":"http://www.exploit-db.com/exploits/16129/","tags":["Exploit"],"source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/46183","tags":["Exploit"],"source":"cve@mitre.org"},{"url":"http://www.vupen.com/english/advisories/2011/0617","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://www.vupen.com/english/advisories/2011/0857","source":"cve@mitre.org"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=681718","tags":["Exploit","Patch"],"source":"cve@mitre.org"},{"url":"http://bugs.proftpd.org/show_bug.cgi?id=3586","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://bugs.proftpd.org/show_bug.cgi?id=3587","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058344.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058356.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://proftp.cvs.sourceforge.net/viewvc/proftp/proftpd/contrib/mod_sftp/mod_sftp.c?r1=1.29.2.1&r2=1.29.2.2","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://proftp.cvs.sourceforge.net/viewvc/proftp/proftpd/contrib/mod_sftp/packet.c?r1=1.14.2.2&r2=1.14.2.3","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://proftp.cvs.sourceforge.net/viewvc/proftp/proftpd/contrib/mod_sftp/packet.h?r1=1.3&r2=1.3.2.1","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/43234","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/43635","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/43978","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://slackware.com/security/viewer.php?l=slackware-security&y=2011&m=slackware-security.485806","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.debian.org/security/2011/dsa-2185","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.exploit-db.com/exploits/16129/","tags":["Exploit"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/46183","tags":["Exploit"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.vupen.com/english/advisories/2011/0617","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.vupen.com/english/advisories/2011/0857","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=681718","tags":["Exploit","Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2011-1137","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."}