UBUNTU-CVE-2016-7444

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    UBUNTU-CVE-2016-7444

    Published: 27 Sept 2016Last Modified: 22 Apr 2026
    Upstream:
    CVE-2016-7444
    Aliases:
    USN-3183-1

    Summary:

    Details: The gnutls_ocsp_resp_check_crt function in lib/x509/ocsp.c in GnuTLS before 3.4.15 and 3.5.x before 3.5.4 does not verify the serial length of an OCSP response, which might allow remote attackers to bypass an intended certificate validation mechanism via vectors involving trailing bytes left by gnutls_malloc.

    References: https://ubuntu.com/security/CVE-2016-7444, https://gnutls.org/security.html#GNUTLS-SA-2016-3, http://lists.gnutls.org/pipermail/gnutls-devel/2016-September/008146.html, http://www.openwall.com/lists/oss-security/2016/09/18/3, https://ubuntu.com/security/notices/USN-3183-1, https://www.cve.org/CVERecord?id=CVE-2016-7444

    Affected packages

    Package

    Name: gnutls28

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.4.10-4ubuntu1.2

    Affected versions

    3.3.15-5ubuntu2
    3.3.18-1ubuntu1
    3.3.20-1ubuntu1

    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
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