CVE-2014-9421

9.0 · HIGH

Published Feb 19, 2015 mit EPSS 6.21% (93th pctl) AV:N/AC:L/Au:S/C:C/I:C/A:C

Overview

CVE-2014-9421 is a high-severity vulnerability affecting mit kerberos_5. It was published on February 19, 2015 and has a CVSS 2.0 base score of 9.0 (HIGH).

This vulnerability has a CVSS 2.0 base score of 9.0, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical Description

The auth_gssapi_unwrap_data function in lib/rpc/auth_gssapi_misc.c in MIT Kerberos 5 (aka krb5) through 1.11.5, 1.12.x through 1.12.2, and 1.13.x before 1.13.1 does not properly handle partial XDR deserialization, which allows remote authenticated users to cause a denial of service (use-after-free and double free, and daemon crash) or possibly execute arbitrary code via malformed XDR data, as demonstrated by data sent to kadmind.

Remediation

Check the references section for vendor advisories and patches from mit. Update kerberos_5 to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected Products

Vendor	Product	Versions	Status

References

Ref lists.fedoraproject.org/pipermail/package-announce/2015-March/151103.html Ref lists.fedoraproject.org/pipermail/package-announce/2015-March/151437.html Ref lists.opensuse.org/opensuse-security-announce/2015-02/msg00011.html Ref lists.opensuse.org/opensuse-security-announce/2015-02/msg00016.html Ref lists.opensuse.org/opensuse-updates/2015-02/msg00044.html Ref rhn.redhat.com/errata/RHSA-2015-0439.html Ref rhn.redhat.com/errata/RHSA-2015-0794.html Ref web.mit.edu/kerberos/advisories/2015-001-patch-r113.txt Ref web.mit.edu/kerberos/advisories/MITKRB5-SA-2015-001.txt Ref www.debian.org/security/2015/dsa-3153

Frequently Asked Questions

What is CVE-2014-9421?

CVE-2014-9421 is a high-severity vulnerability affecting mit kerberos_5. It was published on February 19, 2015 and has a CVSS 2.0 base score of 9.0 (HIGH).

How severe is CVE-2014-9421?

This vulnerability has a CVSS 2.0 base score of 9.0, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2014-9421?

How can CyberStrike help with CVE-2014-9421?

CyberStrike's AI-powered security agents can automatically detect CVE-2014-9421 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.

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