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Mandriva Linux Security Advisory 2008-069

Mandriva Linux Security Advisory 2008-069
Posted Mar 19, 2008
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory - Multiple memory management flaws, a Kerberos v4 protocol packet handling issue, and various other vulnerabilities relating to krb5 are addressed in this advisory.

tags | advisory, vulnerability, protocol
systems | linux, mandriva
advisories | CVE-2007-5901, CVE-2007-5971, CVE-2008-0062, CVE-2008-0063, CVE-2008-0947
SHA-256 | b9c93daed1f0633ea2aa214260c2d51bcb53b668537703dd134574d341ceca5f

Mandriva Linux Security Advisory 2008-069

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_______________________________________________________________________

Mandriva Linux Security Advisory MDVSA-2008:069
http://www.mandriva.com/security/
_______________________________________________________________________

Package : krb5
Date : March 19, 2008
Affected: 2007.1, 2008.0
_______________________________________________________________________

Problem Description:

Multiple memory management flaws were found in the GSSAPI library
used by Kerberos that could result in the use of already freed memory
or an attempt to free already freed memory, possibly leading to a
crash or allowing the execution of arbitrary code (CVE-2007-5901,
CVE-2007-5971).

A flaw was discovered in how the Kerberos krb5kdc handled Kerberos v4
protocol packets. An unauthenticated remote attacker could use this
flaw to crash the krb5kdc daemon, disclose portions of its memory,
or possibly %execute arbitrary code using malformed or truncated
Kerberos v4 protocol requests (CVE-2008-0062, CVE-2008-0063).

This issue only affects krb5kdc when it has Kerberos v4 protocol
compatibility enabled, which is a compiled-in default in all
Kerberos versions that Mandriva Linux ships prior to Mandriva
Linux 2008.0. Kerberos v4 protocol support can be disabled by
adding v4_mode=none (without quotes) to the [kdcdefaults] section
of /etc/kerberos/krb5kdc/kdc.conf.

A flaw in the RPC library as used in Kerberos' kadmind was discovered
by Jeff Altman of Secure Endpoints. An unauthenticated remote attacker
could use this vulnerability to crash kadmind or possibly execute
arbitrary code in systems with certain resource limits configured;
this does not affect the default resource limits used by Mandriva Linux
(CVE-2008-0947).

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

References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5901
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5971
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0062
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0063
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0947
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2008-001.txt
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2008-002.txt
_______________________________________________________________________

Updated Packages:

Mandriva Linux 2007.1:
64c3f5c31177dcacc99b021ec6ed1271 2007.1/i586/ftp-client-krb5-1.5.2-6.6mdv2007.1.i586.rpm
11b4194bc9edba8c0951e44660ba9955 2007.1/i586/ftp-server-krb5-1.5.2-6.6mdv2007.1.i586.rpm
23794e6e0cb1d46a329c42a04f672c5f 2007.1/i586/krb5-server-1.5.2-6.6mdv2007.1.i586.rpm
0fbb29bd81c8452d937d30fbbda62242 2007.1/i586/krb5-workstation-1.5.2-6.6mdv2007.1.i586.rpm
8f4eea60bf4ea3bfc776f1c117ceb26d 2007.1/i586/libkrb53-1.5.2-6.6mdv2007.1.i586.rpm
fd5b1da0a056d995011d2b1a692e4292 2007.1/i586/libkrb53-devel-1.5.2-6.6mdv2007.1.i586.rpm
ca79ccbe3f286b9069f0ae028d9816f7 2007.1/i586/telnet-client-krb5-1.5.2-6.6mdv2007.1.i586.rpm
8a7c84f1fe1bbb5338723f28d12a9f21 2007.1/i586/telnet-server-krb5-1.5.2-6.6mdv2007.1.i586.rpm
22830790ad7715479b7d4fbecc6c1e7f 2007.1/SRPMS/krb5-1.5.2-6.6mdv2007.1.src.rpm

Mandriva Linux 2007.1/X86_64:
fc02060b7c1da08c33952e6c14fb5627 2007.1/x86_64/ftp-client-krb5-1.5.2-6.6mdv2007.1.x86_64.rpm
513fca34bdd1f2a5643a8e6adeb62e0e 2007.1/x86_64/ftp-server-krb5-1.5.2-6.6mdv2007.1.x86_64.rpm
4f42d639753a885212e6d62bfe84a121 2007.1/x86_64/krb5-server-1.5.2-6.6mdv2007.1.x86_64.rpm
6b2ca028321fb08199be20a4aedef4a0 2007.1/x86_64/krb5-workstation-1.5.2-6.6mdv2007.1.x86_64.rpm
4d453dc2a579e74e29dfc052197fedc1 2007.1/x86_64/lib64krb53-1.5.2-6.6mdv2007.1.x86_64.rpm
b22d9f1b515df1a5270d2d4c373b7dd3 2007.1/x86_64/lib64krb53-devel-1.5.2-6.6mdv2007.1.x86_64.rpm
21b245649de9e38e43782bd1a18922a7 2007.1/x86_64/telnet-client-krb5-1.5.2-6.6mdv2007.1.x86_64.rpm
1322374ab1c15b5c1392ee4ae5f915e7 2007.1/x86_64/telnet-server-krb5-1.5.2-6.6mdv2007.1.x86_64.rpm
22830790ad7715479b7d4fbecc6c1e7f 2007.1/SRPMS/krb5-1.5.2-6.6mdv2007.1.src.rpm

Mandriva Linux 2008.0:
3ee5a309927b830bf8559a872161384b 2008.0/i586/ftp-client-krb5-1.6.2-7.1mdv2008.0.i586.rpm
1835baa43ab27aac2493dc7821bafa8a 2008.0/i586/ftp-server-krb5-1.6.2-7.1mdv2008.0.i586.rpm
5e8369c201ac4678a7bc46590107e45f 2008.0/i586/krb5-1.6.2-7.1mdv2008.0.i586.rpm
94277e76faf2b75553c2e6250e428a43 2008.0/i586/krb5-server-1.6.2-7.1mdv2008.0.i586.rpm
695d5b85347b906401433fa55177be1a 2008.0/i586/krb5-workstation-1.6.2-7.1mdv2008.0.i586.rpm
4696cbae0ce644c265b74ff4ce59a865 2008.0/i586/libkrb53-1.6.2-7.1mdv2008.0.i586.rpm
cc8122a1c6a3449fc41d3022bbdffeb2 2008.0/i586/libkrb53-devel-1.6.2-7.1mdv2008.0.i586.rpm
d5e75835b35e81a3f7d038e501dabd1c 2008.0/i586/telnet-client-krb5-1.6.2-7.1mdv2008.0.i586.rpm
072b5ba782fbd1659ed8bde15bd11b5a 2008.0/i586/telnet-server-krb5-1.6.2-7.1mdv2008.0.i586.rpm
cfd133fde8cc72b038ea61dc94405701 2008.0/SRPMS/krb5-1.6.2-7.1mdv2008.0.src.rpm

Mandriva Linux 2008.0/X86_64:
7a8c1c390b1d1a0b2a8fe28e8fb6a458 2008.0/x86_64/ftp-client-krb5-1.6.2-7.1mdv2008.0.x86_64.rpm
9b312bd49bd858d00d00ec299866a275 2008.0/x86_64/ftp-server-krb5-1.6.2-7.1mdv2008.0.x86_64.rpm
19f7d0590227c4cc636ee5528db8027a 2008.0/x86_64/krb5-1.6.2-7.1mdv2008.0.x86_64.rpm
6a84bc19cb8e32f7331ce4c1ed36dc9d 2008.0/x86_64/krb5-server-1.6.2-7.1mdv2008.0.x86_64.rpm
dabaf97b9b36316dc2b69e9edc953793 2008.0/x86_64/krb5-workstation-1.6.2-7.1mdv2008.0.x86_64.rpm
2810bbed78b7480ff48b021a798cb5a1 2008.0/x86_64/lib64krb53-1.6.2-7.1mdv2008.0.x86_64.rpm
734b018e6b05204767d07a7d53ef2c3c 2008.0/x86_64/lib64krb53-devel-1.6.2-7.1mdv2008.0.x86_64.rpm
787fb5ea70eff84b91eea5d68c1e956d 2008.0/x86_64/telnet-client-krb5-1.6.2-7.1mdv2008.0.x86_64.rpm
d6224c005bc7c818c117e3fc61643840 2008.0/x86_64/telnet-server-krb5-1.6.2-7.1mdv2008.0.x86_64.rpm
cfd133fde8cc72b038ea61dc94405701 2008.0/SRPMS/krb5-1.6.2-7.1mdv2008.0.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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