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CVE-2009-0845

Date: (C)2009-03-27   (M)2017-10-04
 
CVSS Score: 5.0Access Vector: NETWORK
Exploitability Subscore: 10.0Access Complexity: LOW
Impact Subscore: 2.9Authentication: NONE
 Confidentiality: NONE
 Integrity: NONE
 Availability: PARTIAL











The spnego_gss_accept_sec_context function in lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) 1.5 through 1.6.3, when SPNEGO is used, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via invalid ContextFlags data in the reqFlags field in a negTokenInit token.

Reference:
SECTRACK-1021867
http://www.securityfocus.com/archive/1/archive/1/502526/100/0/threaded
http://www.securityfocus.com/archive/1/archive/1/502546/100/0/threaded
SUNALERT-256728
BID-34257
SECUNIA-34347
SECUNIA-34594
SECUNIA-34617
SECUNIA-34622
SECUNIA-34628
SECUNIA-34630
SECUNIA-34637
SECUNIA-34640
SECUNIA-34734
SECUNIA-35074
ADV-2009-0847
ADV-2009-0976
ADV-2009-1057
ADV-2009-1106
ADV-2009-1297
ADV-2009-2248
APPLE-SA-2009-05-12
FEDORA-2009-2834
FEDORA-2009-2852
GLSA-200904-09
MDVSA-2009:082
RHSA-2009:0408
TA09-133A
USN-755-1
VU#662091
http://krbdev.mit.edu/rt/Ticket/Display.html?user=guest&pass=guest&id=6402
http://src.mit.edu/fisheye/browse/krb5/trunk/src/lib/gssapi/spnego/spnego_mech.c?r1=21875&r2=22084
http://src.mit.edu/fisheye/changelog/krb5/?cs=22084
http://support.apple.com/kb/HT3549
http://support.avaya.com/elmodocs2/security/ASA-2009-142.htm
http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047180.html
http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047181.html
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2009-001.txt
http://wiki.rpath.com/Advisories:rPSA-2009-0058
http://wiki.rpath.com/wiki/Advisories:rPSA-2009-0058
http://www-01.ibm.com/support/docview.wss?uid=swg21396120
kerberos-spnego-dos(49448)

CPE    7
cpe:/a:mit:kerberos:5-1.6.2
cpe:/a:mit:kerberos:5-1.5
cpe:/a:mit:kerberos:5-1.6
cpe:/a:mit:kerberos:5-1.5.3
...
CWE    1
CWE-20
OVAL    12
oval:org.secpod.oval:def:300570
oval:org.secpod.oval:def:300824
oval:org.mitre.oval:def:8181
oval:org.secpod.oval:def:300832
...

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