Strix
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CVE-2009-0845

UnknownEPSS 5.63%

Last modified

CVE-2009-0845 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 5.63% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
5.63%

92.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
MitKerberos5-1.6.3
MitKerberos 51.5
MitKerberos 51.5.1
MitKerberos 51.5.2
MitKerberos 51.5.3
MitKerberos 51.6
MitKerberos 51.6.1
MitKerberos 51.6.2

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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 invalid ContextFlags data in the reqFlags field in a negTokenInit token.
How severe is CVE-2009-0845?
Severity scoring for CVE-2009-0845 is pending analysis. The EPSS model estimates a 5.63% probability of exploitation in the next 30 days.
How do I fix CVE-2009-0845?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2009-0845?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST