CVE-2009-0845
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…
Does this matter?
Lower severity and a low EPSS score (5.63%). Track it; it rarely justifies an emergency change on its own.
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 2.0
- 5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
- EPSS
- 5.63% probability · 93th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- mit/kerberos · mit/kerberos 5
- Source
- cve@mitre.org
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.c?r1=21875&r2=22084Exploit
- http://src.mit.edu/fisheye/changelog/krb5/?cs=22084Vendor Advisory
- http://sunsolve.sun.com/search/document.do?assetkey=1-26-256728-1
- 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
- http://www.kb.cert.org/vuls/id/662091US Government Resource
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:082
- http://www.redhat.com/support/errata/RHSA-2009-0408.html
- http://www.securityfocus.com/archive/1/502526/100/0/threaded
- http://www.securityfocus.com/archive/1/502546/100/0/threaded
- http://www.securityfocus.com/bid/34257
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.