Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mit | Kerberos | 5-1.6.3 |
| Mit | Kerberos 5 | 1.5 |
Related Weaknesses (CWE)
References
- http://krbdev.mit.edu/rt/Ticket/Display.html?user=guest&pass=guest&id=6402
- http://lists.apple.com/archives/security-announce/2009/May/msg00002.html
- http://secunia.com/advisories/34347Vendor Advisory
- http://secunia.com/advisories/34594
- http://secunia.com/advisories/34617
- http://secunia.com/advisories/34622
- http://secunia.com/advisories/34628
- http://secunia.com/advisories/34630
- http://secunia.com/advisories/34637
- http://secunia.com/advisories/34640
- http://secunia.com/advisories/34734
- http://secunia.com/advisories/35074Vendor Advisory
- http://security.gentoo.org/glsa/glsa-200904-09.xml
- http://src.mit.edu/fisheye/browse/krb5/trunk/src/lib/gssapi/spnego/spnego_mech.cExploit
- http://src.mit.edu/fisheye/changelog/krb5/?cs=22084Vendor Advisory
FAQ
What is CVE-2009-0845?
CVE-2009-0845 is a vulnerability with a CVSS score of 5.0 (MEDIUM). 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 ...
How severe is CVE-2009-0845?
CVE-2009-0845 has been rated MEDIUM with a CVSS base score of 5.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2009-0845?
Check the references section above for vendor advisories and patch information. Affected products include: Mit Kerberos, Mit Kerberos 5.