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    CVE-2007-5365

    Stack-based buffer overflow in the cons_options function in options.c in dhcpd in OpenBSD 4.0 through 4.2, and some other dhcpd implementations based on ISC dhcp-2, allows remote attackers to execute arbitrary code or cause a denial of service (daemon crash) via a DHCP request specifying a maximum message size smaller than the minimum IP MTU.

    Published:Oct 8, 2007
    Last Modified:Apr 23, 2026
    EPS:Oct 11, 2007
    EPSS Score:0.43508
    CVSS Score:7.2

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Openbsd
    Product
    Openbsd
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Linux Advanced Workstation
    Vendor
    Sun
    Product
    Opensolaris
    Vendor
    Sun
    Product
    Solaris
    Vendor
    Ubuntu
    Product
    Ubuntu Linux

    Exploits

    https://www.exploit-db.com/exploits/4601

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    References

    http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=446354
    http://secunia.com/advisories/27160
    http://secunia.com/advisories/27273
    http://secunia.com/advisories/27338
    http://secunia.com/advisories/27350
    http://secunia.com/advisories/32668
    http://securitytracker.com/id?1021157
    http://sunsolve.sun.com/search/document.do?assetkey=1-21-109077-21-1
    http://sunsolve.sun.com/search/document.do?assetkey=1-26-243806-1
    http://www.coresecurity.com/index.php5?module=ContentMod&action=item&id=1962
    http://www.debian.org/security/2007/dsa-1388
    http://www.openbsd.org/cgi-bin/cvsweb/src/usr.sbin/dhcpd/options.c
    http://www.openbsd.org/errata40.html#016_dhcpd
    http://www.openbsd.org/errata41.html#010_dhcpd
    http://www.openbsd.org/errata42.html#001_dhcpd
    http://www.redhat.com/support/errata/RHSA-2007-0970.html
    http://www.securityfocus.com/archive/1/482085/100/100/threaded
    http://www.securityfocus.com/archive/1/483230/100/100/threaded
    http://www.securityfocus.com/bid/25984
    http://www.securityfocus.com/bid/32213
    http://www.securitytracker.com/id?1018794
    http://www.ubuntu.com/usn/usn-531-1
    http://www.ubuntu.com/usn/usn-531-2
    http://www.vupen.com/english/advisories/2008/3088
    https://exchange.xforce.ibmcloud.com/vulnerabilities/37045
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5817
    https://www.exploit-db.com/exploits/4601
    http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=446354
    http://secunia.com/advisories/27160
    http://secunia.com/advisories/27273
    http://secunia.com/advisories/27338
    http://secunia.com/advisories/27350
    http://secunia.com/advisories/32668
    http://securitytracker.com/id?1021157
    http://sunsolve.sun.com/search/document.do?assetkey=1-21-109077-21-1
    http://sunsolve.sun.com/search/document.do?assetkey=1-26-243806-1
    http://www.coresecurity.com/index.php5?module=ContentMod&action=item&id=1962
    http://www.debian.org/security/2007/dsa-1388
    http://www.openbsd.org/cgi-bin/cvsweb/src/usr.sbin/dhcpd/options.c
    http://www.openbsd.org/errata40.html#016_dhcpd
    http://www.openbsd.org/errata41.html#010_dhcpd
    http://www.openbsd.org/errata42.html#001_dhcpd
    http://www.redhat.com/support/errata/RHSA-2007-0970.html
    http://www.securityfocus.com/archive/1/482085/100/100/threaded
    http://www.securityfocus.com/archive/1/483230/100/100/threaded
    http://www.securityfocus.com/bid/25984
    http://www.securityfocus.com/bid/32213
    http://www.securitytracker.com/id?1018794
    http://www.ubuntu.com/usn/usn-531-1
    http://www.ubuntu.com/usn/usn-531-2
    http://www.vupen.com/english/advisories/2008/3088
    https://exchange.xforce.ibmcloud.com/vulnerabilities/37045
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5817
    https://www.exploit-db.com/exploits/4601

    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