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Sicherheit: Mehrere Probleme in krb5
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in krb5
ID: MDVSA-2010:005
Distribution: Mandriva
Plattformen: Mandriva Multi Network Firewall 2.0
Datum: Do, 14. Januar 2010, 08:55
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0846
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0847
Applikationen: MIT Kerberos

Originalnachricht

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_______________________________________________________________________

Mandriva Linux Security Advisory MDVSA-2010:005
http://www.mandriva.com/security/
_______________________________________________________________________

Package : krb5
Date : January 13, 2010
Affected: Multi Network Firewall 2.0
_______________________________________________________________________

Problem Description:

Multiple vulnerabilities has been found and corrected in krb5:

The asn1_decode_generaltime function in lib/krb5/asn.1/asn1_decode.c in
the ASN.1 GeneralizedTime decoder in MIT Kerberos 5 (aka krb5) before
1.6.4 allows remote attackers to cause a denial of service (daemon
crash) or possibly execute arbitrary code via vectors involving an
invalid DER encoding that triggers a free of an uninitialized pointer
(CVE-2009-0846).

The asn1buf_imbed function in the ASN.1 decoder in MIT Kerberos 5
(aka krb5) 1.6.3, when PK-INIT is used, allows remote attackers to
cause a denial of service (application crash) via a crafted length
value that triggers an erroneous malloc call, related to incorrect
calculations with pointer arithmetic (CVE-2009-0847).

The updated packages have been patched to correct these issues.
_______________________________________________________________________

References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0846
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0847
_______________________________________________________________________

Updated Packages:

Multi Network Firewall 2.0:
89a9a2ea150c9a935ef6aae518f9bc6a
mnf/2.0/i586/ftp-client-krb5-1.3-6.11.M20mdk.i586.rpm
50547a6dcfd037ebd10222b4c25954bc
mnf/2.0/i586/ftp-server-krb5-1.3-6.11.M20mdk.i586.rpm
7ebbbd6d7374bebdff12ab28da4f3a12
mnf/2.0/i586/krb5-server-1.3-6.11.M20mdk.i586.rpm
d2f2265f0d9b68df799dc82fadda5887
mnf/2.0/i586/krb5-workstation-1.3-6.11.M20mdk.i586.rpm
3a467a675f59c3f8ea6778290abebaf6
mnf/2.0/i586/libkrb51-1.3-6.11.M20mdk.i586.rpm
02601a40f77c526174e26667daf63cc2
mnf/2.0/i586/libkrb51-devel-1.3-6.11.M20mdk.i586.rpm
43eaff29e6cd398c0b6cdb9dcdf28b74
mnf/2.0/i586/telnet-client-krb5-1.3-6.11.M20mdk.i586.rpm
99b454ab3a0b20cae15da89ae69aa423
mnf/2.0/i586/telnet-server-krb5-1.3-6.11.M20mdk.i586.rpm
55029456c5057afbe7b344a265d2e53a mnf/2.0/SRPMS/krb5-1.3-6.11.M20mdk.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
<security*mandriva.com>
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_______________________________________________________

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