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.
Published: 2009-03-27
Score: 5.0 Medium
EPSS: 19.3% Moderate
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-1766-1 New krb5 packages fix several vulnerabilities
Ubuntu USN Ubuntu USN USN-755-1 Kerberos vulnerabilities
References
Link Providers
http://krbdev.mit.edu/rt/Ticket/Display.html?user=guest&pass=guest&id=6402 cve-icon cve-icon
http://lists.apple.com/archives/security-announce/2009/May/msg00002.html cve-icon cve-icon
http://secunia.com/advisories/34347 cve-icon cve-icon
http://secunia.com/advisories/34594 cve-icon cve-icon
http://secunia.com/advisories/34617 cve-icon cve-icon
http://secunia.com/advisories/34622 cve-icon cve-icon
http://secunia.com/advisories/34628 cve-icon cve-icon
http://secunia.com/advisories/34630 cve-icon cve-icon
http://secunia.com/advisories/34637 cve-icon cve-icon
http://secunia.com/advisories/34640 cve-icon cve-icon
http://secunia.com/advisories/34734 cve-icon cve-icon
http://secunia.com/advisories/35074 cve-icon cve-icon
http://security.gentoo.org/glsa/glsa-200904-09.xml cve-icon cve-icon
http://src.mit.edu/fisheye/browse/krb5/trunk/src/lib/gssapi/spnego/spnego_mech.c?r1=21875&r2=22084 cve-icon cve-icon
http://src.mit.edu/fisheye/changelog/krb5/?cs=22084 cve-icon cve-icon
http://sunsolve.sun.com/search/document.do?assetkey=1-26-256728-1 cve-icon cve-icon
http://support.apple.com/kb/HT3549 cve-icon cve-icon
http://support.avaya.com/elmodocs2/security/ASA-2009-142.htm cve-icon cve-icon
http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047180.html cve-icon cve-icon
http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047181.html cve-icon cve-icon
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2009-001.txt cve-icon cve-icon
http://wiki.rpath.com/Advisories:rPSA-2009-0058 cve-icon cve-icon
http://wiki.rpath.com/wiki/Advisories:rPSA-2009-0058 cve-icon cve-icon
http://www-01.ibm.com/support/docview.wss?uid=swg21396120 cve-icon cve-icon
http://www.kb.cert.org/vuls/id/662091 cve-icon cve-icon
http://www.mandriva.com/security/advisories?name=MDVSA-2009:082 cve-icon cve-icon
http://www.redhat.com/support/errata/RHSA-2009-0408.html cve-icon cve-icon
http://www.securityfocus.com/archive/1/502526/100/0/threaded cve-icon cve-icon
http://www.securityfocus.com/archive/1/502546/100/0/threaded cve-icon cve-icon
http://www.securityfocus.com/bid/34257 cve-icon cve-icon
http://www.securitytracker.com/id?1021867 cve-icon cve-icon
http://www.ubuntu.com/usn/usn-755-1 cve-icon cve-icon
http://www.us-cert.gov/cas/techalerts/TA09-133A.html cve-icon cve-icon
http://www.vupen.com/english/advisories/2009/0847 cve-icon cve-icon
http://www.vupen.com/english/advisories/2009/0976 cve-icon cve-icon
http://www.vupen.com/english/advisories/2009/1057 cve-icon cve-icon
http://www.vupen.com/english/advisories/2009/1106 cve-icon cve-icon
http://www.vupen.com/english/advisories/2009/1297 cve-icon cve-icon
http://www.vupen.com/english/advisories/2009/2248 cve-icon cve-icon
https://exchange.xforce.ibmcloud.com/vulnerabilities/49448 cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2009-0845 cve-icon
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10044 cve-icon cve-icon
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6449 cve-icon cve-icon
https://www.cve.org/CVERecord?id=CVE-2009-0845 cve-icon
https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00205.html cve-icon cve-icon
https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00206.html cve-icon cve-icon
History

No history.

Subscriptions

Mit Kerberos Kerberos 5
Redhat Enterprise Linux
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-07T04:48:52.589Z

Reserved: 2009-03-06T00:00:00.000Z

Link: CVE-2009-0845

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2009-03-27T16:30:02.157

Modified: 2026-04-23T00:35:47.467

Link: CVE-2009-0845

cve-icon Redhat

Severity : Important

Publid Date: 2009-03-13T00:00:00Z

Links: CVE-2009-0845 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses