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Liebe Kolleginnen und Kollegen,

soeben erreichte uns nachfolgendes Advisory von Mandriva Security. Wir
geben diese Informationen unveraendert an Sie weiter.

CVE-2008-4776 – Schwachstelle in der Bibliothek libgadu

In der Bibliothek libgadu wird die Laenge der ‘contact description’
nicht kontrolliert. Ein entfernter Angreifer kann diese Schwachstelle
durch das Versenden einer sehr langen ‘contact description’ ausnutzen
um das Programm zum Absturz zu bringen. Laut Angabe des Herstellers ist
die Schwachstelle nur in einem man-in-the-middle Angriff oder durch
einen kompromitierten Gadu-Gadu Server auszunutzen.

Betroffen sind die folgenden Software Pakete und Plattformen:

Paket libgadu

Mandriva Linux 2008.1
Mandriva Linux 2008.1/X86_64
Mandriva Linux 2009.0
Mandriva Linux 2009.0/X86_64
Mandriva Enterprise Server 5
Mandriva Enterprise Server 5/X86_64

Vom Hersteller werden ueberarbeitete Pakete zur Verfuegung gestellt.

Hersteller Advisory:
http://www.mandriva.com/security/advisories?name=MDVSA-2009:208

(c) der deutschen Zusammenfassung bei DFN-CERT Services GmbH; die
Verbreitung, auch auszugsweise, ist nur unter Hinweis auf den Urheber,
DFN-CERT Services GmbH, und nur zu nicht kommerziellen Zwecken
gestattet.

Mit freundlichen Gruessen,
Klaus Moeller, DFN-CERT

– —
Dipl. Inform. Klaus Moeller (Incident Response Team)
Phone: +49 40 808077-555, Fax: +49 40 808077-556

DFN-CERT Services GmbH, https://www.dfn-cert.de, Phone +49 40 808077-555
Sitz / Register: Hamburg, AG Hamburg, HRB 88805, Ust-IdNr.: DE 232129737
Sachsenstrase 5, 20097 Hamburg/Germany, CEO: Dr. Klaus-Peter Kossakowski

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_______________________________________________________________________

Mandriva Linux Security Advisory MDVSA-2009:208
http://www.mandriva.com/security/
_______________________________________________________________________

Package : libgadu
Date : August 20, 2009
Affected: 2008.1, 2009.0, Enterprise Server 5.0
_______________________________________________________________________

Problem Description:

A vulnerability has been found and corrected in libgadu:

libgadu before 1.8.2 allows remote servers to cause a denial of service
(crash) via a contact description with a large length, which triggers
a buffer over-read (CVE-2008-4776).

This update provides a solution to this vulnerability.
_______________________________________________________________________

References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4776
_______________________________________________________________________

Updated Packages:

Mandriva Linux 2008.1:
1c0af6f00f073390ff69e6844394b813 2008.1/i586/libgadu3-1.8.0-1.1mdv2008.1.i586.rpm
6d6fc79f0f8ea9deaa79f67013be103b 2008.1/i586/libgadu-devel-1.8.0-1.1mdv2008.1.i586.rpm
1a9d6c02ec1b2683253d1058f6a52ffc 2008.1/SRPMS/libgadu-1.8.0-1.1mdv2008.1.src.rpm

Mandriva Linux 2008.1/X86_64:
673242fd7da029005a1fdcea295fe576 2008.1/x86_64/lib64gadu3-1.8.0-1.1mdv2008.1.x86_64.rpm
5fe5265aa0a7f2a767b6b63d3dc4a00e 2008.1/x86_64/lib64gadu-devel-1.8.0-1.1mdv2008.1.x86_64.rpm
1a9d6c02ec1b2683253d1058f6a52ffc 2008.1/SRPMS/libgadu-1.8.0-1.1mdv2008.1.src.rpm

Mandriva Linux 2009.0:
a1c0c94b882c442897074c473bd7c432 2009.0/i586/libgadu3-1.8.1-2.1mdv2009.0.i586.rpm
27f122bbc778314bc59f929f5efc4bd9 2009.0/i586/libgadu-devel-1.8.1-2.1mdv2009.0.i586.rpm
4e46ebf53c466e5afc61f740db59ef1e 2009.0/SRPMS/libgadu-1.8.1-2.1mdv2009.0.src.rpm

Mandriva Linux 2009.0/X86_64:
d163436eefbc29409fb42289596f8ea9 2009.0/x86_64/lib64gadu3-1.8.1-2.1mdv2009.0.x86_64.rpm
19bd5071b0ba3a348e846d177b5952eb 2009.0/x86_64/lib64gadu-devel-1.8.1-2.1mdv2009.0.x86_64.rpm
4e46ebf53c466e5afc61f740db59ef1e 2009.0/SRPMS/libgadu-1.8.1-2.1mdv2009.0.src.rpm

Mandriva Enterprise Server 5:
8618cf0c0b55a33249f2551b4c1cd2a8 mes5/i586/libgadu3-1.8.1-2.1mdvmes5.i586.rpm
f5507588a57548cb6215b64c0e05a9da mes5/i586/libgadu-devel-1.8.1-2.1mdvmes5.i586.rpm
343437290b1c8e4204d19fa3248f2388 mes5/SRPMS/libgadu-1.8.1-2.1mdvmes5.src.rpm

Mandriva Enterprise Server 5/X86_64:
895a408fecee913966d93b26175edae3 mes5/x86_64/lib64gadu3-1.8.1-2.1mdvmes5.x86_64.rpm
f76383153c792fd9fd4f3cd149d9aa83 mes5/x86_64/lib64gadu-devel-1.8.1-2.1mdvmes5.x86_64.rpm
343437290b1c8e4204d19fa3248f2388 mes5/SRPMS/libgadu-1.8.1-2.1mdvmes5.src.rpm
_______________________________________________________________________

To upgrade automatically use MandrivaUpdate or urpmi. The verification
of md5 checksums and GPG signatures is performed automatically for you.

All packages are signed by Mandriva for security. You can obtain the
GPG public key of the Mandriva Security Team by executing:

gpg –recv-keys –keyserver pgp.mit.edu 0x22458A98

You can view other update advisories for Mandriva Linux at:

http://www.mandriva.com/security/advisories

If you want to report vulnerabilities, please contact

security_(at)_mandriva.com
_______________________________________________________________________

Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Mandriva Security Team

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