CVE-2009-3826

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    CVE-2009-3826

    Published: 28 Oct 2009Last Modified: 10 Apr 2026

    Summary:

    Details: Multiple buffer overflows in squidGuard 1.4 allow remote attackers to bypass intended URL blocking via a long URL, related to (1) the relationship between a certain buffer size in squidGuard and a certain buffer size in Squid and (2) a redirect URL that contains information about the originally requested URL.

    References: http://secunia.com/advisories/37107, http://secunia.com/advisories/39679, http://www.debian.org/security/2010/dsa-2040, http://www.squidguard.org/Downloads/Patches/1.4/Readme.Patch-20091019, http://www.vupen.com/english/advisories/2009/3013, http://www.vupen.com/english/advisories/2010/1043, http://www.securityfocus.com/bid/36800, http://www.vupen.com/english/advisories/2009/3013, http://lists.opensuse.org/opensuse-security-announce/2010-08/msg00001.html, http://securitytracker.com/id?1023079, http://www.osvdb.org/59164, http://www.securityfocus.com/archive/1/507440/100/0/threaded, https://exchange.xforce.ibmcloud.com/vulnerabilities/53922

    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