CVE-2011-1137

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 28.1% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2011-03-11 · updated 2026-06-16
Weakness: CWE-189

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.

Affected products

ProFTPD: through 1.3.3; 1.2.0, 1.2.0-pre10, 1.2.0-pre9, 1.2.0-rc1, 1.2.0-rc2, 1.2.0-rc3 (+58)

References

http://bugs.proftpd.org/show_bug.cgi?id=3586
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=1.29.2.2
http://proftp.cvs.sourceforge.net/viewvc/proftp/proftpd/contrib/mod_sftp/packet.c?r1=1.14.2.2&r2=1.14.2.3
http://proftp.cvs.sourceforge.net/viewvc/proftp/proftpd/contrib/mod_sftp/packet.h?r1=1.3&r2=1.3.2.1
http://secunia.com/advisories/43234
http://secunia.com/advisories/43635
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

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