CVE-2011-1137
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.
Does this matter?
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.
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.
- CVSS 2.0
- 5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
- EPSS
- 28.07% probability · 98th percentile
- Public exploits
- 1 in Exploit-DB · first 7 February 2011
- CISA KEV
- Not listed
- Weakness
- CWE-189
- Affected
- proftpd/proftpd
- Source
- cve@mitre.org
EPSS 28.1% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://bugs.proftpd.org/show_bug.cgi?id=3586Patch
- http://bugs.proftpd.org/show_bug.cgi?id=3587
- http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058344.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058356.html
- http://proftp.cvs.sourceforge.net/viewvc/proftp/proftpd/contrib/mod_sftp/mod_sftp.c?r1=1.29.2.1&r2=1.29.2.2Patch
- http://proftp.cvs.sourceforge.net/viewvc/proftp/proftpd/contrib/mod_sftp/packet.c?r1=1.14.2.2&r2=1.14.2.3Vendor Advisory
- http://proftp.cvs.sourceforge.net/viewvc/proftp/proftpd/contrib/mod_sftp/packet.h?r1=1.3&r2=1.3.2.1Vendor Advisory
- http://secunia.com/advisories/43234Vendor Advisory
- http://secunia.com/advisories/43635Vendor Advisory
- http://secunia.com/advisories/43978
- http://slackware.com/security/viewer.php?l=slackware-security&y=2011&m=slackware-security.485806
- http://www.debian.org/security/2011/dsa-2185
- http://www.exploit-db.com/exploits/16129/Exploit
- http://www.securityfocus.com/bid/46183Exploit
- http://www.vupen.com/english/advisories/2011/0617Vendor Advisory
- http://www.vupen.com/english/advisories/2011/0857
- https://bugzilla.redhat.com/show_bug.cgi?id=681718Exploit, Patch
- http://bugs.proftpd.org/show_bug.cgi?id=3586Patch
- http://bugs.proftpd.org/show_bug.cgi?id=3587
- http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058344.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058356.html
- http://proftp.cvs.sourceforge.net/viewvc/proftp/proftpd/contrib/mod_sftp/mod_sftp.c?r1=1.29.2.1&r2=1.29.2.2Patch
- http://proftp.cvs.sourceforge.net/viewvc/proftp/proftpd/contrib/mod_sftp/packet.c?r1=1.14.2.2&r2=1.14.2.3Vendor Advisory
- http://proftp.cvs.sourceforge.net/viewvc/proftp/proftpd/contrib/mod_sftp/packet.h?r1=1.3&r2=1.3.2.1Vendor Advisory
- http://secunia.com/advisories/43234Vendor Advisory
- http://secunia.com/advisories/43635Vendor Advisory
- http://secunia.com/advisories/43978
- http://slackware.com/security/viewer.php?l=slackware-security&y=2011&m=slackware-security.485806
- http://www.debian.org/security/2011/dsa-2185
- http://www.exploit-db.com/exploits/16129/Exploit
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.