bugtraq - [OpenPKG-SA-2007.002] OpenPKG Security Advisory (bzip2)

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Date: Fri, 5 Jan 2007 21:59:14 +0100
From: OpenPKG GmbH <openpkg-noreply@...npkg.com>
To: bugtraq@...urityfocus.com
Subject: [OpenPKG-SA-2007.002] OpenPKG Security Advisory (bzip2)

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____________________________________________________________________________

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

Advisory Id (public):    OpenPKG-SA-2007.002
Advisory Type:           OpenPKG Security Advisory (SA)
Advisory Directory:      http://openpkg.com/go/OpenPKG-SA
Advisory Document:       http://openpkg.com/go/OpenPKG-SA-2007.002
Advisory Published:      2007-01-05 21:58 UTC

Issue Id (internal):     OpenPKG-SI-20070105.01
Issue First Created:     2007-01-05
Issue Last Modified:     2007-01-05
Issue Revision:          04
____________________________________________________________________________

Subject Name:            bzip2
Subject Summary:         Compression Tool
Subject Home:            http://www.bzip.org/
Subject Versions:        * <= 1.0.3

Vulnerability Id:        CVE-2005-0953, CVE-2005-0758
Vulnerability Scope:     global (not OpenPKG specific)

Attack Feasibility:      run-time
Attack Vector:           local system
Attack Impact:           manipulation of data, arbitrary code execution

Description:
    Together with two portability and stability issues, two older
    security issues were fixed in the compression tool BZip2 [0], versions
    up to and including 1.0.3.
    
    The first issue is a race condition which allows local users to
    modify permissions of arbitrary files via a hard link attack on a
    file while it is being decompressed, whose permissions are changed
    by bzip2 after the decompression is complete.
    
    The second issue affects the script bzgrep(1). It does not properly
    sanitize arguments, which allows local users to execute arbitrary
    commands via filenames that are injected into a sed(1) script.

References:
    [0] http://www.bzip.org/
____________________________________________________________________________

Primary Package Name:    bzip2
Primary Package Home:    http://openpkg.org/go/package/bzip2

Corrected Distribution:  Corrected Branch: Corrected Package:
OpenPKG Enterprise       E1.0-SOLID        bzip2-1.0.3-E1.0.1
OpenPKG Enterprise       E1.0-SOLID        openpkg-E1.0.2-E1.0.2
OpenPKG Community        2-STABLE-20061018 bzip2-1.0.4-2.20070105
OpenPKG Community        2-STABLE-20061018 openpkg-2.20070105-2.20070105
OpenPKG Community        2-STABLE          bzip2-1.0.4-2.20070105
OpenPKG Community        2-STABLE          openpkg-2.20070105-2.20070105
OpenPKG Community        CURRENT           bzip2-1.0.4-20070105
OpenPKG Community        CURRENT           openpkg-20070105-20070105
____________________________________________________________________________

For security reasons, this document was digitally signed with the
OpenPGP public key of the OpenPKG GmbH (public key id 61B7AE34)
which you can download from http://openpkg.com/openpkg.com.pgp
or retrieve from the OpenPGP keyserver at hkp://pgp.openpkg.org/.
Follow the instructions at http://openpkg.com/security/signatures/
for more details on how to verify the integrity of this document.
____________________________________________________________________________

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