Strix
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CVE-2014-5355

UnknownEPSS 4.59%

Last modified

CVE-2014-5355 is a vulnerability of currently unknown severity. MIT Kerberos 5 (aka krb5) through 1.13.1 incorrectly expects that a krb5_read_message data field is represented as a string ending with a '\0' character, which allows remote attackers to (1) cause a denial of service (NULL pointer dereference) via a zero-byte version string or (2) cause a denial of service (out-of-bounds read) by omitting the '\0' character, related to appl/user_user/server.c and lib/krb5/krb/recvauth.c.. EPSS estimates a 4.59% chance of exploitation in the next 30 days.

Description

MIT Kerberos 5 (aka krb5) through 1.13.1 incorrectly expects that a krb5_read_message data field is represented as a string ending with a '\0' character, which allows remote attackers to (1) cause a denial of service (NULL pointer dereference) via a zero-byte version string or (2) cause a denial of service (out-of-bounds read) by omitting the '\0' character, related to appl/user_user/server.c and lib/krb5/krb/recvauth.c.

Metrics

EPSS Probability
4.59%

90.4th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
MitKerberos 51.1
MitKerberos 51.2
MitKerberos 51.2.1
MitKerberos 51.2.2
MitKerberos 51.2.3
MitKerberos 51.2.4
MitKerberos 51.2.5
MitKerberos 51.2.6
MitKerberos 51.2.7
MitKerberos 51.2.8
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
MitKerberos 51.7.1
MitKerberos 51.8
MitKerberos 51.8.1
MitKerberos 51.8.2
MitKerberos 51.8.3
MitKerberos 51.8.4
MitKerberos 51.8.5
MitKerberos 51.8.6
MitKerberos 51.9
MitKerberos 51.9.1
MitKerberos 51.9.2
MitKerberos 51.9.3
MitKerberos 51.9.4
MitKerberos 51.10
MitKerberos 51.10.1
MitKerberos 51.10.2
MitKerberos 51.10.3
MitKerberos 51.10.4
MitKerberos 51.11
MitKerberos 51.11.1

Showing 50 of 59 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2014-5355?
MIT Kerberos 5 (aka krb5) through 1.13.1 incorrectly expects that a krb5_read_message data field is represented as a string ending with a '\0' character, which allows remote attackers to (1) cause a denial of service (NULL pointer dereference) via a zero-byte version string or (2) cause a denial of service (out-of-bounds read) by omitting the '\0' character, related to appl/user_user/server.c and lib/krb5/krb/recvauth.c.
How severe is CVE-2014-5355?
Severity scoring for CVE-2014-5355 is pending analysis. The EPSS model estimates a 4.59% probability of exploitation in the next 30 days.
How do I fix CVE-2014-5355?
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-2014-5355?

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

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Source: NVD / NIST