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    CVE-2009-4016

    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.

    Published:Jan 27, 2010
    Last Modified:Apr 11, 2025
    EPS:Feb 4, 2010
    EPSS Score:0.04008
    CVSS Score:6.8

    Affected Products

    Vendor
    Ircd-hybrid
    Product
    Ircd-hybrid
    Vendor
    Ircd-ratbox
    Product
    Ircd-ratbox
    Vendor
    Oftc
    Product
    Oftc-hybrid

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    References

    http://lists.ratbox.org/pipermail/ircd-ratbox/2010-January/000891.html
    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://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.debian.org/security/2010/dsa-1980
    http://www.securityfocus.com/bid/37978
    http://lists.ratbox.org/pipermail/ircd-ratbox/2010-January/000891.html
    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://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.debian.org/security/2010/dsa-1980
    http://www.securityfocus.com/bid/37978

    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