CVE-2015-3146

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    CVE-2015-3146

    Published: 13 Apr 2016Last Modified: 16 Apr 2026

    Summary:

    Details: The (1) SSH_MSG_NEWKEYS and (2) SSH_MSG_KEXDH_REPLY packet handlers in package_cb.c in libssh before 0.6.5 do not properly validate state, which allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted SSH packet.

    References: http://www.debian.org/security/2016/dsa-3488, http://www.ubuntu.com/usn/USN-2912-1, https://www.libssh.org/2015/04/30/libssh-0-6-5-security-and-bugfix-release/, https://www.libssh.org/security/advisories/CVE-2015-3146.txt, http://lists.fedoraproject.org/pipermail/package-announce/2015-July/161802.html, http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158013.html, https://git.libssh.org/projects/libssh.git/commit/?h=libssh-0.6.5&id=94f6955fbaee6fda9385a23e505497efe21f5b4f

    Affected packages

    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