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    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.

    Published:Mar 11, 2011
    Last Modified:Apr 11, 2025
    EPS:Mar 11, 2011
    EPSS Score:0.04013
    CVSS Score:5

    Affected Products

    Vendor
    Proftpd
    Product
    Proftpd

    Exploits

    http://www.exploit-db.com/exploits/16129/http://www.securityfocus.com/bid/46183https://bugzilla.redhat.com/show_bug.cgi?id=681718http://www.exploit-db.com/exploits/16129/http://www.securityfocus.com/bid/46183https://bugzilla.redhat.com/show_bug.cgi?id=681718https://www.exploit-db.com/exploits/16129

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-63091 (CVSS 7.1) — ProFTPD before 1.3.9c and 1.3.10rc3 contains a signed integer overflow vulnerability in the mod_sftp module's …
    CVE-2026-63090 (CVSS 8.7) — ProFTPD before 1.3.9c and 1.3.10rc3 contains a heap-based buffer overflow vulnerability in the mod_sftp module…
    CVE-2026-53994 (CVSS 7.7) — ProFTPD mod_sftp contains a heap-based buffer overflow reachable by an authenticated SFTP user. The fxp_packet…
    CVE-2026-35025 (CVSS 8.6) — ProFTPD through 1.3.9b and 1.3.10rc2 contains an access control bypass vulnerability that allows authenticated…
    CVE-2026-44331 (CVSS 8.1) — In ProFTPD through 1.3.9a before 7666224, a SQL injection vulnerability in sqltab_fetch_clients_cb() in contri…
    CVE-2026-42167 (CVSS 8.1) — mod_sql in ProFTPD before 1.3.9a allows remote attackers to execute arbitrary code via a username, in scenario…
    CVE-2021-47865 (CVSS 8.7) — ProFTPD 1.3.7a contains a denial of service vulnerability that allows attackers to overwhelm the server by cre…
    CVE-2010-20103 (CVSS 9.3) — A malicious backdoor was embedded in the official ProFTPD 1.3.3c source tarball distributed between November 2…
    CVE-2024-48651 (CVSS 7.5) — In ProFTPD through 1.3.8b before cec01cc, supplemental group inheritance grants unintended access to GID 0 bec…
    CVE-2023-51713 (CVSS 7.5) — make_ftp_cmd in main.c in ProFTPD before 1.3.8a has a one-byte out-of-bounds read, and daemon crash, because o…

    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
    http://www.exploit-db.com/exploits/16129/
    http://www.securityfocus.com/bid/46183
    http://www.vupen.com/english/advisories/2011/0617
    http://www.vupen.com/english/advisories/2011/0857
    https://bugzilla.redhat.com/show_bug.cgi?id=681718
    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
    http://www.exploit-db.com/exploits/16129/
    http://www.securityfocus.com/bid/46183
    http://www.vupen.com/english/advisories/2011/0617
    http://www.vupen.com/english/advisories/2011/0857
    https://bugzilla.redhat.com/show_bug.cgi?id=681718

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High