UBUNTU-CVE-2015-3294

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    UBUNTU-CVE-2015-3294

    Published: 27 Apr 2015Last Modified: 4 Feb 2026
    Upstream:
    CVE-2015-3294
    Aliases:
    USN-2593-1

    Summary:

    Details: The tcp_request function in Dnsmasq before 2.73rc4 does not properly handle the return value of the setup_reply function, which allows remote attackers to read process memory and cause a denial of service (out-of-bounds read and crash) via a malformed DNS request.

    References: https://ubuntu.com/security/CVE-2015-3294, http://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2015q2/009382.html, https://www.obrela.com/home/security-labs/advisories/osi-advisory-osi-1502/, https://ubuntu.com/security/notices/USN-2593-1, https://www.cve.org/CVERecord?id=CVE-2015-3294

    Affected packages

    Package

    Name: dnsmasq

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.68-1ubuntu0.1

    Affected versions

    2.66-4ubuntu1

    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