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January 2010

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Subject:
Security ERRATA Critical: krb5 on SL3.x, SL4.x, SL5.x i386/x86_64
From:
Troy Dawson <[log in to unmask]>
Reply To:
Troy Dawson <[log in to unmask]>
Date:
Wed, 13 Jan 2010 10:01:49 -0600
Content-Type:
text/plain
Parts/Attachments:
text/plain (72 lines) 
Synopsis:	Critical: krb5 security update
Issue date:	2010-01-12
CVE Names:	CVE-2009-4212

CVE-2009-4212 krb: KDC integer overflows in AES and RC4 decryption 
routines (MITKRB5-SA-2009-004)

Multiple integer underflow flaws, leading to heap-based corruption, were
found in the way the MIT Kerberos Key Distribution Center (KDC) 
decrypted ciphertexts encrypted with the Advanced Encryption Standard 
(AES) and ARCFOUR (RC4) encryption algorithms. If a remote KDC client 
were able to provide a specially-crafted AES- or RC4-encrypted 
ciphertext or texts, it could potentially lead to either a denial of 
service of the central KDC (KDC crash or abort upon processing the 
crafted ciphertext), or arbitrary code execution with the privileges of 
the KDC (i.e., root privileges). (CVE-2009-4212)

All running services using the MIT Kerberos libraries must be restarted 
for the update to take effect.

SL 3.0.x

       SRPMS:
krb5-1.2.7-71.src.rpm
       i386:
krb5-devel-1.2.7-71.i386.rpm
krb5-libs-1.2.7-71.i386.rpm
krb5-server-1.2.7-71.i386.rpm
krb5-workstation-1.2.7-71.i386.rpm
       x86_64:
krb5-devel-1.2.7-71.x86_64.rpm
krb5-libs-1.2.7-71.i386.rpm
krb5-libs-1.2.7-71.x86_64.rpm
krb5-server-1.2.7-71.x86_64.rpm
krb5-workstation-1.2.7-71.x86_64.rpm

SL 4.x

       SRPMS:
krb5-1.3.4-62.el4_8.1.src.rpm
       i386:
krb5-devel-1.3.4-62.el4_8.1.i386.rpm
krb5-libs-1.3.4-62.el4_8.1.i386.rpm
krb5-server-1.3.4-62.el4_8.1.i386.rpm
krb5-workstation-1.3.4-62.el4_8.1.i386.rpm
       x86_64:
krb5-devel-1.3.4-62.el4_8.1.x86_64.rpm
krb5-libs-1.3.4-62.el4_8.1.i386.rpm
krb5-libs-1.3.4-62.el4_8.1.x86_64.rpm
krb5-server-1.3.4-62.el4_8.1.x86_64.rpm
krb5-workstation-1.3.4-62.el4_8.1.x86_64.rpm

SL 5.x

       SRPMS:
krb5-1.6.1-36.el5_4.1.src.rpm
       i386:
krb5-devel-1.6.1-36.el5_4.1.i386.rpm
krb5-libs-1.6.1-36.el5_4.1.i386.rpm
krb5-server-1.6.1-36.el5_4.1.i386.rpm
krb5-workstation-1.6.1-36.el5_4.1.i386.rpm
       x86_64:
krb5-devel-1.6.1-36.el5_4.1.i386.rpm
krb5-devel-1.6.1-36.el5_4.1.x86_64.rpm
krb5-libs-1.6.1-36.el5_4.1.i386.rpm
krb5-libs-1.6.1-36.el5_4.1.x86_64.rpm
krb5-server-1.6.1-36.el5_4.1.x86_64.rpm
krb5-workstation-1.6.1-36.el5_4.1.x86_64.rpm

-Connie Sieh
-Troy Dawson

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