CVE-2009-4016

    Dashboard / Vulnerabilities / CVE-2009-4016

    CVE-2009-4016

    Published: 4 Feb 2010Last Modified: 10 Apr 2026

    Summary:

    Details: Integer underflow in the clean_string function in irc_string.c in (1) IRCD-hybrid 7.2.2 and 7.2.3, (2) ircd-ratbox before 2.2.9, and (3) oftc-hybrid before 1.6.8, when flatten_links is disabled, allows remote attackers to execute arbitrary code or cause a denial of service (daemon crash) via a LINKS command.

    References: http://secunia.com/advisories/38210, http://secunia.com/advisories/38381, http://secunia.com/advisories/38382, http://secunia.com/advisories/38383, http://security.debian.org/pool/updates/main/i/ircd-hybrid/ircd-hybrid_7.2.2.dfsg.2-4+lenny1.diff.gz, http://www.debian.org/security/2010/dsa-1980, http://lists.ratbox.org/pipermail/ircd-ratbox/2010-January/000891.html, http://svn.ircd-hybrid.org:8000/viewcvs.cgi?rev=1044&view=rev, http://trac.oftc.net/projects/oftc-hybrid/browser/tags/oftc-hybrid-1.6.8/RELNOTES, http://www.securityfocus.com/bid/37978

    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