National Cyber Awareness System

Vulnerability Summary for CVE-2009-0845

Overview

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.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

References to Advisories, Solutions, and Tools

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US-CERT Technical Alert: TA09-133A

Name: TA09-133A

Hyperlink:http://www.us-cert.gov/cas/techalerts/TA09-133A.html

US-CERT Vulnerability Note: VU#662091

Name: VU#662091

Hyperlink:http://www.kb.cert.org/vuls/id/662091

External Source: FEDORA

Name: FEDORA-2009-2852

Hyperlink:https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00206.html

External Source: FEDORA

Name: FEDORA-2009-2834

Hyperlink:https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00205.html

External Source: XF

Name: kerberos-spnego-dos(49448)

Hyperlink:http://xforce.iss.net/xforce/xfdb/49448

External Source: VUPEN

Name: ADV-2009-2248

Type: Advisory

Hyperlink:http://www.vupen.com/english/advisories/2009/2248

External Source: VUPEN

Name: ADV-2009-1297

Hyperlink:http://www.vupen.com/english/advisories/2009/1297

External Source: VUPEN

Name: ADV-2009-1106

Hyperlink:http://www.vupen.com/english/advisories/2009/1106

External Source: VUPEN

Name: ADV-2009-1057

Hyperlink:http://www.vupen.com/english/advisories/2009/1057

External Source: VUPEN

Name: ADV-2009-0976

Hyperlink:http://www.vupen.com/english/advisories/2009/0976

External Source: VUPEN

Name: ADV-2009-0847

Type: Advisory

Hyperlink:http://www.vupen.com/english/advisories/2009/0847

External Source: UBUNTU

Name: USN-755-1

Hyperlink:http://www.ubuntu.com/usn/usn-755-1

External Source: SECTRACK

Name: 1021867

Hyperlink:http://www.securitytracker.com/id?1021867

External Source: BID

Name: 34257

Hyperlink:http://www.securityfocus.com/bid/34257

External Source: BUGTRAQ

Name: 20090407 rPSA-2009-0058-1 krb5 krb5-server krb5-services krb5-test krb5-workstation

Hyperlink:http://www.securityfocus.com/archive/1/archive/1/502546/100/0/threaded

External Source: BUGTRAQ

Name: 20090407 MITKRB5-SA-2009-001: multiple vulnerabilities in SPNEGO, ASN.1 decoder [CVE-2009-0844 CVE-2009-0845 CVE-2009-0847]

Hyperlink:http://www.securityfocus.com/archive/1/archive/1/502526/100/0/threaded

External Source: REDHAT

Name: RHSA-2009:0408

Hyperlink:http://www.redhat.com/support/errata/RHSA-2009-0408.html

External Source: MANDRIVA

Name: MDVSA-2009:082

Hyperlink:http://www.mandriva.com/security/advisories?name=MDVSA-2009:082

External Source: CONFIRM

Name: http://www-01.ibm.com/support/docview.wss?uid=swg21396120

Hyperlink:http://www-01.ibm.com/support/docview.wss?uid=swg21396120

External Source: MISC

Name: http://wiki.rpath.com/wiki/Advisories:rPSA-2009-0058

Hyperlink:http://wiki.rpath.com/wiki/Advisories:rPSA-2009-0058

External Source: CONFIRM

Name: http://wiki.rpath.com/Advisories:rPSA-2009-0058

Hyperlink:http://wiki.rpath.com/Advisories:rPSA-2009-0058

External Source: CONFIRM

Name: http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2009-001.txt

Hyperlink:http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2009-001.txt

External Source: MISC

Name: http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047181.html

Hyperlink:http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047181.html

External Source: MISC

Name: http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047180.html

Hyperlink:http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047180.html

External Source: CONFIRM

Name: http://support.avaya.com/elmodocs2/security/ASA-2009-142.htm

Hyperlink:http://support.avaya.com/elmodocs2/security/ASA-2009-142.htm

External Source: CONFIRM

Name: http://support.apple.com/kb/HT3549

Hyperlink:http://support.apple.com/kb/HT3549

External Source: SUNALERT

Name: 256728

Hyperlink:http://sunsolve.sun.com/search/document.do?assetkey=1-26-256728-1

External Source: CONFIRM

Name: http://src.mit.edu/fisheye/changelog/krb5/?cs=22084

Type: Advisory

Hyperlink:http://src.mit.edu/fisheye/changelog/krb5/?cs=22084

External Source: CONFIRM

Name: http://src.mit.edu/fisheye/browse/krb5/trunk/src/lib/gssapi/spnego/spnego_mech.c?r1=21875&r2=22084

Hyperlink:http://src.mit.edu/fisheye/browse/krb5/trunk/src/lib/gssapi/spnego/spnego_mech.c?r1=21875&r2=22084

External Source: GENTOO

Name: GLSA-200904-09

Hyperlink:http://security.gentoo.org/glsa/glsa-200904-09.xml

External Source: SECUNIA

Name: 35074

Type: Advisory

Hyperlink:http://secunia.com/advisories/35074

External Source: SECUNIA

Name: 34734

Hyperlink:http://secunia.com/advisories/34734

External Source: SECUNIA

Name: 34640

Hyperlink:http://secunia.com/advisories/34640

External Source: SECUNIA

Name: 34637

Hyperlink:http://secunia.com/advisories/34637

External Source: SECUNIA

Name: 34630

Hyperlink:http://secunia.com/advisories/34630

External Source: SECUNIA

Name: 34628

Hyperlink:http://secunia.com/advisories/34628

External Source: SECUNIA

Name: 34622

Hyperlink:http://secunia.com/advisories/34622

External Source: SECUNIA

Name: 34617

Hyperlink:http://secunia.com/advisories/34617

External Source: SECUNIA

Name: 34594

Hyperlink:http://secunia.com/advisories/34594

External Source: SECUNIA

Name: 34347

Type: Advisory

Hyperlink:http://secunia.com/advisories/34347

External Source: OVAL

Name: oval:org.mitre.oval:def:6449

Hyperlink:http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:6449

External Source: OVAL

Name: oval:org.mitre.oval:def:10044

Hyperlink:http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:10044

External Source: APPLE

Name: APPLE-SA-2009-05-12

Hyperlink:http://lists.apple.com/archives/security-announce/2009/May/msg00002.html

External Source: CONFIRM

Name: http://krbdev.mit.edu/rt/Ticket/Display.html?user=guest&pass=guest&id=6402

Hyperlink:http://krbdev.mit.edu/rt/Ticket/Display.html?user=guest&pass=guest&id=6402

References to Check Content

Identifier:oval:org.mitre.oval:def:6449

Check System:http://oval.mitre.org/XMLSchema/oval-definitions-5

Hyperlink:http://oval.mitre.org/repository/data/DownloadDefinition?id=oval:org.mitre.oval:def:6449

Identifier:oval:org.mitre.oval:def:10044

Check System:http://oval.mitre.org/XMLSchema/oval-definitions-5

Hyperlink:http://oval.mitre.org/repository/data/DownloadDefinition?id=oval:org.mitre.oval:def:10044