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Bug#: 262736
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Status: RESOLVED
Resolution: FIXED
Assigned To: Gentoo Security <security@gentoo.org>
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Reporter: Robert Buchholz <rbu@gentoo.org>
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Bug 262736 depends on: Show dependency tree
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Description:   Opened: 2009-03-16 22:20 0000 
A null pointer dereference in libgssapi_krb5 can lead to a Denial of Service in
kerberized daemons. See referenced bug report for details and patch (committed
to SVN trunk and 1.7 branch).

------- Comment #1 From Robert Buchholz 2009-03-18 17:24:38 0000 ------- 
ping, please apply this patch.
http://anonsvn.mit.edu/cgi-bin/viewcvs.cgi?rev=22084&view=rev

------- Comment #2 From Michael Hammer 2009-03-20 09:31:37 0000 ------- 
Committed mit-krb5-1.6.3-r5 with new patch set release including this patch.
Made arch unstable as local installed files are definitely modified.

g, mueli

------- Comment #3 From Alex Legler 2009-03-20 10:46:34 0000 ------- 
Arches, please test and mark stable:
=app-crypt/mit-krb5-1.6.3-r5
Target keywords : "alpha amd64 arm hppa ia64 m68k ppc ppc64 s390 sh sparc x86"

------- Comment #4 From Brent Baude 2009-03-20 15:31:30 0000 ------- 
ppc64 done

------- Comment #5 From Brent Baude 2009-03-20 15:31:40 0000 ------- 
ppc done

------- Comment #6 From Markus Meier 2009-03-20 23:36:57 0000 ------- 
amd64/x86 stable

------- Comment #7 From Tobias Klausmann 2009-03-22 18:40:35 0000 ------- 
Stable on alpha.

------- Comment #8 From Raúl Porcel 2009-03-23 14:32:12 0000 ------- 
arm/ia64/m68k/s390/sh/sparc stable

------- Comment #9 From Jeroen Roovers 2009-03-27 21:41:52 0000 ------- 
Stable for HPPA.

------- Comment #10 From Alex Legler 2009-03-28 10:25:50 0000 ------- 
CVE-2009-0845 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2009-0845):
  The spnego_gss_accept_sec_context function in
  lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) 1.6.3,
  when SPNEGO is used, allows remote attackers to cause a denial of
  service (NULL pointer dereference and application crash) via invalid
  ContextFlags data in the reqFlags field in a negTokenInit token.

------- Comment #11 From Pierre-Yves Rofes 2009-04-08 18:18:57 0000 ------- 
glsa with #263398

------- Comment #12 From Robert Buchholz 2009-04-08 22:47:26 0000 ------- 
GLSA 200904-09
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