MIT Kerberos 5-1.12/5-1.12.1 RFC 1964 GSSAPI Token memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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4.6$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in MIT Kerberos 5-1.12/5-1.12.1. This vulnerability affects unknown code of the component RFC 1964 GSSAPI Token Handler. Performing a manipulation results in memory corruption. This vulnerability is reported as CVE-2014-4341. No exploit exists. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability classified as problematic has been found in MIT Kerberos 5-1.12/5-1.12.1 (Network Authentication Software). This affects an unknown functionality of the component RFC 1964 GSSAPI Token Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on availability. The summary by CVE is:

MIT Kerberos 5 (aka krb5) before 1.12.2 allows remote attackers to cause a denial of service (buffer over-read and application crash) by injecting invalid tokens into a GSSAPI application session.

The weakness was disclosed 06/20/2014 as Handle invalid RFC 1964 tokens as confirmed git commit (GIT Repository). The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2014-4341 since 06/20/2014. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 81637 (RHEL 7 : krb5 (RHSA-2015:0439)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 350283 (Amazon Linux Security Advisory for krb5: ALAS-2014-443).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the databases at X-Force (94904), Tenable (81637), SecurityFocus (BID 68908†), Secunia (SA60448†) and Vulnerability Center (SBV-48235†). The entries VDB-11106, VDB-11229, VDB-67256 and VDB-67306 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.6

VulDB Base Score: 5.3
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 81637
Nessus Name: RHEL 7 : krb5 (RHSA-2015:0439)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 703000
OpenVAS Name: Debian Security Advisory DSA 3000-1 (krb5 - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

06/20/2014 🔍
06/20/2014 +0 days 🔍
07/20/2014 +30 days 🔍
07/20/2014 +0 days 🔍
07/25/2014 +5 days 🔍
07/30/2014 +5 days 🔍
09/01/2014 +33 days 🔍
01/27/2015 +148 days 🔍
03/05/2015 +37 days 🔍
02/10/2022 +2534 days 🔍

Sourcesinfo

Vendor: mit.edu

Advisory: Handle invalid RFC 1964 tokens
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-4341 (🔍)
GCVE (CVE): GCVE-0-2014-4341
GCVE (VulDB): GCVE-100-67257

OVAL: 🔍
IAVM: 🔍

X-Force: 94904 - MIT Kerberos GSSAPI denial of service, Medium Risk
SecurityFocus: 68908 - MIT Kerberos 5 GSSAPI Remote Denial of Service Vulnerability
Secunia: 60448 - IBM AIX / Virtual I/O Server Kerberos GSSAPI Multiple Vulnerabilities, Moderately Critical
SecurityTracker: 1030706
Vulnerability Center: 48235 - MIT Kerberos 5 before 1.12.2 Remote DoS via Invalid Tokens Injection into Application Session, Medium

See also: 🔍

Entryinfo

Created: 07/30/2014 11:14
Updated: 02/10/2022 02:27
Changes: 07/30/2014 11:14 (83), 06/18/2017 09:34 (4), 02/10/2022 02:19 (3), 02/10/2022 02:27 (1)
Complete: 🔍
Cache ID: 216:B47:103

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