CVE-2015-2694

Description

The kdcpreauth modules in MIT Kerberos 5 (aka krb5) 1.12.x and 1.13.x before 1.13.2 do not properly track whether a client's request has been validated, which allows remote attackers to bypass an intended preauthentication requirement by providing (1) zero bytes of data or (2) an arbitrary realm name, related to plugins/preauth/otp/main.c and plugins/preauth/pkinit/pkinit_srv.c.

Category

5.8
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.13%
Vendor Advisory ubuntu.com Vendor Advisory mit.edu Vendor Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/krb5/krb5/commit/e3b5a5e5267818c97750b266df50b6a3d4649604 vendor advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
http://www.securityfocus.com/bid/74824 vdb entry
http://krbdev.mit.edu/rt/Ticket/Display.html?id=8160 vendor advisory
http://www.ubuntu.com/usn/USN-2810-1 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2015-2694?
CVE-2015-2694 has been scored as a medium severity vulnerability.
How to fix CVE-2015-2694?
To fix CVE-2015-2694, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2015-2694 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2015-2694 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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