OpenPKG Security Advisory

Publisher Name:          OpenPKG GmbH
Publisher Home:          http://openpkg.com/

Advisory Id (public):    OpenPKG-SA-2006.022
Advisory Type:           OpenPKG Security Advisory (SA)
Advisory Directory:      http://openpkg.com/go/OpenPKG-SA
Advisory Document:       http://openpkg.com/go/OpenPKG-SA-2006.022
Advisory Published:      2008-11-19 13:05 UTC

Issue Id (internal):     OpenPKG-SI-20061001.01
Issue First Created:     2006-10-01
Issue Last Modified:     2006-12-07
Issue Revision:          08


Subject Name:            OpenSSH
Subject Summary:         Secure Shell (SSH)
Subject Home:            http://www.openssh.com/
Subject Versions:        * <= 4.3p2

Vulnerability Id:        CVE-2006-4924, CVE-2006-4925, CVE-2006-5051
Vulnerability Scope:     global (not OpenPKG specific)

Attack Feasibility:      run-time
Attack Vector:           
Attack Impact:           denial of service

Description:
    According to a vendor security advisory [0], multiple vulnerabilities
    exist in the Secure Shell (SSH) implementation OpenSSH [1]:
    
    First, a pre-authentication denial of service was found by Tavis
    Ormandy that would cause sshd(8) to spin until the login grace time
    expired. CVE-2006-4924, CVE-2006-4925
    
    Second, an unsafe signal handler, reported by Mark Dowd, was fixed.
    The signal handler was vulnerable to a race condition that could be
    exploited to perform a pre-authentication denial of service. This
    vulnerability could theoretically lead to pre-authentication remote
    code execution if some authentication methods like GSSAPI are enabled,
    but the likelihood of successful exploitation appears remote.
    CVE-2006-5051

References:
    [0] http://www.openssh.com/txt/release-4.4
    [1] http://www.openssh.com/


Primary Package Name:    openssh
Primary Package Home:    http://openpkg.org/go/package/openssh

Affected Distribution:   Affected Branch:  Affected Package:
OpenPKG Community        2.5-SOLID         openssh-4.2p1-2.5.3
OpenPKG Community        2-STABLE-20060622 openssh-4.3p2-2.20060622
OpenPKG Community        CURRENT           openssh-4.3p2-20060924

Corrected Distribution:  Corrected Branch: Corrected Package:
OpenPKG Community        2.5-SOLID         openssh-4.2p1-2.5.4
OpenPKG Community        2-STABLE-20060622 openssh-4.4p1-2.20060929
OpenPKG Community        CURRENT           openssh-4.4p1-20060928