CVE-2006-4925

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    CVE-2006-4925

    Published: 29 Sept 2006Last Modified: 10 Apr 2026

    Summary:

    Details: packet.c in ssh in OpenSSH allows remote attackers to cause a denial of service (crash) by sending an invalid protocol sequence with USERAUTH_SUCCESS before NEWKEYS, which causes newkeys[mode] to be NULL.

    References: http://secunia.com/advisories/22245, http://secunia.com/advisories/22298, http://secunia.com/advisories/22495, http://secunia.com/advisories/23038, http://www.mandriva.com/security/advisories?name=MDKSA-2006:179, http://www.novell.com/linux/security/advisories/2006_24_sr.html, http://www.novell.com/linux/security/advisories/2006_62_openssh.html, http://www.openpkg.org/security/advisories/OpenPKG-SA-2006.022-openssh.html, http://bugs.gentoo.org/show_bug.cgi?id=148228, http://bugs.gentoo.org/show_bug.cgi?id=148228, http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/packet.c.diff?r1=1.144&r2=1.145&f=h, http://www.securityfocus.com/archive/1/447153/100/0/threaded, http://www.securityfocus.com/archive/1/447861/100/200/threaded, https://issues.rpath.com/browse/RPL-661, https://issues.rpath.com/browse/RPL-681

    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