Bug 545015 - (CVE-2009-4212) CVE-2009-4212 krb: KDC integer overflows in AES and RC4 decryption routines (MITKRB5-SA-2009-004)
CVE-2009-4212 krb: KDC integer overflows in AES and RC4 decryption routines (...
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
urgent Severity urgent
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Assigned To: Red Hat Product Security
http://web.mit.edu/kerberos/advisorie...
impact=critical,source=mit,reported=2...
: Security
Depends On: 546344 546345 546346 546347 546348 546653 546654 546655
Blocks:
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Reported: 2009-12-07 05:52 EST by Jan Lieskovsky
Modified: 2012-07-16 12:49 EDT (History)
7 users (show)

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Doc Type: Bug Fix
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Last Closed: 2010-01-14 02:57:34 EST
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RHEL 7.3 requirements from Atomic Host:


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Description Jan Lieskovsky 2009-12-07 05:52:03 EST
Integer underflow flaws, leading to heap-based corruption, were found
in the way MIT Kerberos Key Distribution Center (KDC) used to
decrypt ciphertexts encrypted with Advanced Encryption Standard (AES)
and ARCFOUR (RC4) encryption algorithms. A remote KDC client
could provide a specially-crafted AES or RC4 encrypted ciphertext(s),
which once processed by a central KDC would lead to denial of
service (KDC crash or abort) or, potentially, to KDC relying
authentication services compromise or arbitrary code execution
with the privileges of the KDC centre.

Upstream advisory (not available yet):
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http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2009-004.txt

Upstream patches (not available yet):
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http://web.mit.edu/kerberos/advisories/2009-004-patch_1.7.txt
http://web.mit.edu/kerberos/advisories/2009-004-patch_1.6.3.txt
Comment 11 Tomas Hoger 2010-01-12 14:43:03 EST
Public now via:
  http://web.mit.edu/Kerberos/advisories/MITKRB5-SA-2009-004.txt
Comment 12 errata-xmlrpc 2010-01-12 17:26:30 EST
This issue has been addressed in following products:

  Red Hat Enterprise Linux 3
  Red Hat Enterprise Linux 4
  Red Hat Enterprise Linux 4.7 Z Stream
  Red Hat Enterprise Linux 5
  Red Hat Enterprise Linux 5.2 Z Stream
  Red Hat Enterprise Linux 5.3.Z - Server Only

Via RHSA-2010:0029 https://rhn.redhat.com/errata/RHSA-2010-0029.html
Comment 13 Fedora Update System 2010-01-13 20:20:57 EST
krb5-1.7-18.fc12 has been pushed to the Fedora 12 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 14 Fedora Update System 2010-01-13 20:22:36 EST
krb5-1.6.3-23.fc11 has been pushed to the Fedora 11 stable repository.  If problems still persist, please make note of it in this bug report.

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