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CVE-2009-4212

UnknownEPSS 7.41%

Last modified

CVE-2009-4212 is a vulnerability of currently unknown severity. Multiple integer underflows in the (1) AES and (2) RC4 decryption functionality in the crypto library in MIT Kerberos 5 (aka krb5) 1.3 through 1.6.3, and 1.7 before 1.7.1, allow remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code by providing ciphertext with a length that is too short to be valid.. EPSS estimates a 7.41% chance of exploitation in the next 30 days.

Description

Multiple integer underflows in the (1) AES and (2) RC4 decryption functionality in the crypto library in MIT Kerberos 5 (aka krb5) 1.3 through 1.6.3, and 1.7 before 1.7.1, allow remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code by providing ciphertext with a length that is too short to be valid.

Metrics

EPSS Probability
7.41%

93.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
MitKerberos5-1.6.3
MitKerberos 51.3
MitKerberos 51.3.1
MitKerberos 51.3.2
MitKerberos 51.3.3
MitKerberos 51.3.4
MitKerberos 51.3.5
MitKerberos 51.3.6
MitKerberos 51.4
MitKerberos 51.4.1
MitKerberos 51.4.2
MitKerberos 51.4.3
MitKerberos 51.4.4
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
MitKerberos 51.7

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2009-4212?
Multiple integer underflows in the (1) AES and (2) RC4 decryption functionality in the crypto library in MIT Kerberos 5 (aka krb5) 1.3 through 1.6.3, and 1.7 before 1.7.1, allow remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code by providing ciphertext with a length that is too short to be valid.
How severe is CVE-2009-4212?
Severity scoring for CVE-2009-4212 is pending analysis. The EPSS model estimates a 7.41% probability of exploitation in the next 30 days.
How do I fix CVE-2009-4212?
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-2009-4212?

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

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Source: NVD / NIST