UBUNTU-CVE-2016-3947

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    UBUNTU-CVE-2016-3947

    Published: 7 Apr 2016Last Modified: 4 Feb 2026
    Upstream:
    CVE-2016-3947
    Aliases:
    USN-2995-1

    Summary:

    Details: Heap-based buffer overflow in the Icmp6::Recv function in icmp/Icmp6.cc in the pinger utility in Squid before 3.5.16 and 4.x before 4.0.8 allows remote servers to cause a denial of service (performance degradation or transition failures) or write sensitive information to log files via an ICMPv6 packet.

    References: https://ubuntu.com/security/CVE-2016-3947, http://www.squid-cache.org/Advisories/SQUID-2016_3.txt, https://ubuntu.com/security/notices/USN-2995-1, https://www.cve.org/CVERecord?id=CVE-2016-3947

    Affected packages

    Package

    Name: squid3

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.3.8-1ubuntu6.8

    Affected versions

    3.3.8-1ubuntu3
    3.3.8-1ubuntu4
    3.3.8-1ubuntu5
    3.3.8-1ubuntu6
    3.3.8-1ubuntu6.1
    3.3.8-1ubuntu6.2
    3.3.8-1ubuntu6.3
    3.3.8-1ubuntu6.4
    3.3.8-1ubuntu6.6

    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
    UBUNTU-CVE-2016-3947 | CVE-DB