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    CVE-2009-2957

    Heap-based buffer overflow in the tftp_request function in tftp.c in dnsmasq before 2.50, when --enable-tftp is used, might allow remote attackers to execute arbitrary code via a long filename in a TFTP packet, as demonstrated by a read (aka RRQ) request.

    Published:Aug 31, 2009
    Last Modified:Apr 23, 2026
    EPS:Sep 2, 2009
    EPSS Score:0.08525
    CVSS Score:6.8

    Affected Products

    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Thekelleys
    Product
    Dnsmasq

    Exploits

    https://www.exploit-db.com/exploits/9617

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    References

    http://secunia.com/advisories/36563
    http://www.coresecurity.com/content/dnsmasq-vulnerabilities
    http://www.redhat.com/support/errata/RHSA-2009-1238.html
    http://www.securityfocus.com/bid/36121
    http://www.thekelleys.org.uk/dnsmasq/CHANGELOG
    http://www.ubuntu.com/usn/USN-827-1
    https://bugzilla.redhat.com/show_bug.cgi?id=519020
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10538
    https://rhn.redhat.com/errata/RHSA-2010-0095.html
    http://secunia.com/advisories/36563
    http://www.coresecurity.com/content/dnsmasq-vulnerabilities
    http://www.redhat.com/support/errata/RHSA-2009-1238.html
    http://www.securityfocus.com/bid/36121
    http://www.thekelleys.org.uk/dnsmasq/CHANGELOG
    http://www.ubuntu.com/usn/USN-827-1
    https://bugzilla.redhat.com/show_bug.cgi?id=519020
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10538
    https://rhn.redhat.com/errata/RHSA-2010-0095.html

    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