CVE-2010-4221

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    CVE-2010-4221

    Published: 9 Nov 2010Last Modified: 10 Apr 2026

    Summary:

    Details: Multiple stack-based buffer overflows in the pr_netio_telnet_gets function in netio.c in ProFTPD before 1.3.3c allow remote attackers to execute arbitrary code via vectors involving a TELNET IAC escape character to a (1) FTP or (2) FTPS server.

    References: http://secunia.com/advisories/42052, http://secunia.com/advisories/42217, http://www.mandriva.com/security/advisories?name=MDVSA-2010:227, http://www.vupen.com/english/advisories/2010/2941, http://www.vupen.com/english/advisories/2010/2959, http://www.vupen.com/english/advisories/2010/2962, http://www.zerodayinitiative.com/advisories/ZDI-10-229/, http://bugs.proftpd.org/show_bug.cgi?id=3521, http://www.securityfocus.com/bid/44562, http://lists.fedoraproject.org/pipermail/package-announce/2010-November/050687.html, http://lists.fedoraproject.org/pipermail/package-announce/2010-November/050703.html, http://lists.fedoraproject.org/pipermail/package-announce/2010-November/050726.html, http://www.proftpd.org/docs/NEWS-1.3.3c

    Affected packages

    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