CVE-2009-0845

Description

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.

Affected products

• MIT / kerberos5-1.6.3 – 5-1.6.3
• MIT / Kerberos 51.5 – 1.5
• MIT / Kerberos 51.5.1 – 1.5.1
• MIT / Kerberos 51.5.2 – 1.5.2
• MIT / Kerberos 51.5.3 – 1.5.3
• MIT / Kerberos 51.6 – 1.6
• MIT / Kerberos 51.6.1 – 1.6.1
• MIT / Kerberos 51.6.2 – 1.6.2

References

• MISChttp://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047181.html
• MISChttp://www.securityfocus.com/archive/1/502526/100/0/threaded
• MISChttp://www.kb.cert.org/vuls/id/662091
• MISChttp://www.securityfocus.com/bid/34257
• VENDOR_ADVISORYhttp://www.vupen.com/english/advisories/2009/0847
• VENDOR_ADVISORYhttp://secunia.com/advisories/34347
• VENDOR_ADVISORYhttp://support.apple.com/kb/HT3549
• MISChttp://support.avaya.com/elmodocs2/security/ASA-2009-142.htm
• MISChttp://src.mit.edu/fisheye/browse/krb5/trunk/src/lib/gssapi/spnego/spnego_mech.c?r1=21875&r2=22084
• MISChttp://www.redhat.com/support/errata/RHSA-2009-0408.html
• VENDOR_ADVISORYhttp://secunia.com/advisories/34637
• VENDOR_ADVISORYhttp://secunia.com/advisories/34640
• VENDOR_ADVISORYhttp://secunia.com/advisories/35074
• VENDOR_ADVISORYhttp://www.mandriva.com/security/advisories?name=MDVSA-2009:082
• MISChttp://sunsolve.sun.com/search/document.do?assetkey=1-26-256728-1
• MISChttp://security.gentoo.org/glsa/glsa-200904-09.xml
• MISChttp://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047180.html
• VENDOR_ADVISORYhttp://www.vupen.com/english/advisories/2009/0976
• MAILING_LISThttp://lists.apple.com/archives/security-announce/2009/May/msg00002.html
• VENDOR_ADVISORYhttp://www.ubuntu.com/usn/usn-755-1
• VENDOR_ADVISORYhttp://secunia.com/advisories/34630
• MISChttp://www-01.ibm.com/support/docview.wss?uid=swg21396120
• VENDOR_ADVISORYhttp://www.vupen.com/english/advisories/2009/1057
• VENDOR_ADVISORYhttp://web.mit.edu/kerberos/advisories/MITKRB5-SA-2009-001.txt
• VENDOR_ADVISORYhttp://secunia.com/advisories/34617
• VENDOR_ADVISORYhttp://secunia.com/advisories/34628
• VENDOR_ADVISORYhttp://secunia.com/advisories/34734
• MISChttps://exchange.xforce.ibmcloud.com/vulnerabilities/49448
• MISChttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6449
• VENDOR_ADVISORYhttp://www.vupen.com/english/advisories/2009/2248
• MISChttp://www.us-cert.gov/cas/techalerts/TA09-133A.html
• VENDOR_ADVISORYhttp://wiki.rpath.com/wiki/Advisories:rPSA-2009-0058
• VENDOR_ADVISORYhttp://www.vupen.com/english/advisories/2009/1297
• VENDOR_ADVISORYhttp://secunia.com/advisories/34622
• MISChttp://krbdev.mit.edu/rt/Ticket/Display.html?user=guest&pass=guest&id=6402
• MISChttps://www.redhat.com/archives/fedora-package-announce/2009-April/msg00206.html
• MISChttp://www.securitytracker.com/id?1021867
• MISChttps://www.redhat.com/archives/fedora-package-announce/2009-April/msg00205.html
• VENDOR_ADVISORYhttp://wiki.rpath.com/Advisories:rPSA-2009-0058
• MISChttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10044
• MISChttp://src.mit.edu/fisheye/changelog/krb5/?cs=22084
• MISChttp://www.securityfocus.com/archive/1/502546/100/0/threaded
• VENDOR_ADVISORYhttp://secunia.com/advisories/34594
• VENDOR_ADVISORYhttp://www.vupen.com/english/advisories/2009/1106