VULNERABILITY INTELLIGENCE
CVE-2009-0845
CVSS score5 MEDIUM
EPSS probability5.63%
CISA KEVNot currently listed
Published2009-03-27
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:N/I:N/A:P
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.
Weakness classification
- CWE-20: Improper Input Validation