CVE-2014-5355

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.

5.0

CVSS

Severity: Medium

CVSS 2.0 •

EPSS 3.59% Top 15%

Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory mandriva.com Vendor Advisory ubuntu.com Vendor Advisory mit.edu

Affected: n/a n/a

References

Link	Tags
http://rhn.redhat.com/errata/RHSA-2015-0794.html	vendor advisory
https://lists.debian.org/debian-lts-announce/2018/01/msg00040.html	mailing list
http://lists.opensuse.org/opensuse-updates/2015-03/msg00061.html	vendor advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
https://github.com/krb5/krb5/commit/102bb6ebf20f9174130c85c3b052ae104e5073ec
http://www.mandriva.com/security/advisories?name=MDVSA-2015:069	vendor advisory
http://www.oracle.com/technetwork/topics/security/bulletinjan2015-2370101.html
http://www.securityfocus.com/bid/74042	vdb entry
http://krbdev.mit.edu/rt/Ticket/Display.html?id=8050	vendor advisory
http://www.ubuntu.com/usn/USN-2810-1	vendor advisory

Frequently Asked Questions

What is the severity of CVE-2014-5355?: CVE-2014-5355 has been scored as a medium severity vulnerability.
How to fix CVE-2014-5355?: To fix CVE-2014-5355, 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-2014-5355 being actively exploited in the wild?: It is possible that CVE-2014-5355 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~4% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.