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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-2008-5138 – Symlink Schwachstelle in der Bibliothek libpam-mount im
Skript passwdehd
Im Modul libpam-mount legt das Skript passwdehd eine temporaere Datei
auf eine unsichere Weise an. Dabei wird nicht ueberprueft, ob beim
Erstellen der Datei eine bereits bestehende Datei ueberschrieben wird.
Ein lokaler Angreifer kann diese Schwachstelle ausnutzen, um mit Hilfe
praeparierter Symlinks beliebige Dateien auf der Festplatte zu
ueberschreiben.
Betroffen sind die folgenden Software Pakete und Plattformen:
Paket pam_mount
Mandriva Linux 2008.0
Mandriva Linux 2008.0/X86_64
Mandriva Linux 2008.1
Mandriva Linux 2008.1/X86_64
Mandriva Linux 2009.0
Mandriva Linux 2009.0/X86_64
Corporate 4.0
Corporate 4.0/X86_64
Vom Hersteller werden ueberarbeitete Pakete zur Verfuegung gestellt.
Hersteller Advisory:
http://www.mandriva.com/security/advisories?name=MDVSA-2009:004
(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,
Torsten Voss
– —
Dipl.-Ing.(FH) Torsten Voss (Incident Response Team)
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
Sachsenstrasse 5, 20097 Hamburg/Germany, CEO: Dr. Klaus-Peter Kossakowski
16. DFN-Workshop Sicherheit in vernetzten Systemen
https://www.dfn-cert.de/ws2009/
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_______________________________________________________________________
Mandriva Linux Security Advisory MDVSA-2009:004
http://www.mandriva.com/security/
_______________________________________________________________________
Package : pam_mount
Date : January 9, 2009
Affected: 2008.0, 2008.1, 2009.0, Corporate 4.0
_______________________________________________________________________
Problem Description:
passwdehd script in pam_mount would allow local users to overwrite
arbitrary files via a symlink attack on a temporary file.
The updated packages have been patched to prevent this.
_______________________________________________________________________
References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5138
_______________________________________________________________________
Updated Packages:
Mandriva Linux 2008.0:
d550c87096d1aa30ba502066de99ee7e 2008.0/i586/pam_mount-0.17-1.3mdv2008.0.i586.rpm
68494b5087e4db72d5220bf88dd50ef8 2008.0/i586/pam_mount-devel-0.17-1.3mdv2008.0.i586.rpm
1b8fc3341d368f35b2c4c68a40fa931a 2008.0/SRPMS/pam_mount-0.17-1.3mdv2008.0.src.rpm
Mandriva Linux 2008.0/X86_64:
d2932e71d030d7d1c9ac28f89230b4dd 2008.0/x86_64/pam_mount-0.17-1.3mdv2008.0.x86_64.rpm
3f6b089d0de2e4ed4a1079bc96606d2b 2008.0/x86_64/pam_mount-devel-0.17-1.3mdv2008.0.x86_64.rpm
1b8fc3341d368f35b2c4c68a40fa931a 2008.0/SRPMS/pam_mount-0.17-1.3mdv2008.0.src.rpm
Mandriva Linux 2008.1:
2d6291e9ae03d1af8373e76396ab77b2 2008.1/i586/pam_mount-0.33-2.5mdv2008.1.i586.rpm
b448a0849a4b0a9ba81452321da671dd 2008.1/SRPMS/pam_mount-0.33-2.5mdv2008.1.src.rpm
Mandriva Linux 2008.1/X86_64:
b55f9915b16de205ce876f1f522ee422 2008.1/x86_64/pam_mount-0.33-2.5mdv2008.1.x86_64.rpm
b448a0849a4b0a9ba81452321da671dd 2008.1/SRPMS/pam_mount-0.33-2.5mdv2008.1.src.rpm
Mandriva Linux 2009.0:
bc4fe7e82c04906e8b55c6f4ae605a7d 2009.0/i586/pam_mount-0.48-1.2mdv2009.0.i586.rpm
042e57a4312295e0386f5dd701801015 2009.0/SRPMS/pam_mount-0.48-1.2mdv2009.0.src.rpm
Mandriva Linux 2009.0/X86_64:
0be0da9f4ed2c14548372a468f125d2f 2009.0/x86_64/pam_mount-0.48-1.2mdv2009.0.x86_64.rpm
042e57a4312295e0386f5dd701801015 2009.0/SRPMS/pam_mount-0.48-1.2mdv2009.0.src.rpm
Corporate 4.0:
441b6914509f1c825b4718d4a7519994 corporate/4.0/i586/pam_mount-0.10.0-5.3.20060mlcs4.i586.rpm
a20956acc5fc8f58f57fc02edc55a103 corporate/4.0/i586/pam_mount-devel-0.10.0-5.3.20060mlcs4.i586.rpm
39f22f9fd569aea4a5066f7fb89e4014 corporate/4.0/SRPMS/pam_mount-0.10.0-5.3.20060mlcs4.src.rpm
Corporate 4.0/X86_64:
8570403f2404c0b00762b8143ddc2a19 corporate/4.0/x86_64/pam_mount-0.10.0-5.3.20060mlcs4.x86_64.rpm
cb96ac8a4f097c23e1cc3bb8be01bc74 corporate/4.0/x86_64/pam_mount-devel-0.10.0-5.3.20060mlcs4.x86_64.rpm
39f22f9fd569aea4a5066f7fb89e4014 corporate/4.0/SRPMS/pam_mount-0.10.0-5.3.20060mlcs4.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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