MIT Kerberos up to 5-1.4.1 Key Distribution Center TCP Request denial of service

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability has been found in MIT Kerberos up to 5-1.4.1 and classified as critical. This issue affects some unknown processing of the component Key Distribution Center. Performing a manipulation as part of TCP Request results in denial of service. This vulnerability is cataloged as CVE-2005-1174. It is possible to initiate the attack remotely. There is no exploit available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in MIT Kerberos up to 5-1.4.1 (Network Authentication Software). It has been classified as critical. This affects an unknown part of the component Key Distribution Center. The manipulation as part of a TCP Request leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

MIT Kerberos 5 (krb5) 1.3 through 1.4.1 Key Distribution Center (KDC) allows remote attackers to cause a denial of service (application crash) via a certain valid TCP connection that causes a free of unallocated memory.

The bug was discovered 07/12/2005. The weakness was shared 07/13/2005 by Daniel Wachdorf (Website). It is possible to read the advisory at web.mit.edu. This vulnerability is uniquely identified as CVE-2005-1174 since 04/19/2005. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 18686 (GLSA-200507-11 : MIT Kerberos 5: Multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 115270 (Apple Mac OS X Security Update 2005-007 v1.1 Not Installed (APPLE-SA-2005-08-17)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at web.mit.edu. A possible mitigation has been published 4 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (21327), Tenable (18686), SecurityFocus (BID 14240†), OSVDB (17843†) and Secunia (SA16041†). The entries VDB-1598, VDB-1600 and VDB-25801 are related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 18686
Nessus Name: GLSA-200507-11 : MIT Kerberos 5: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 54373
OpenVAS Name: Debian Security Advisory DSA 757-1 (krb5)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
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Patch: web.mit.edu

Timelineinfo

04/19/2005 🔍
07/12/2005 +84 days 🔍
07/12/2005 +0 days 🔍
07/12/2005 +0 days 🔍
07/13/2005 +1 days 🔍
07/13/2005 +0 days 🔍
07/13/2005 +0 days 🔍
07/15/2005 +1 days 🔍
07/17/2005 +2 days 🔍
07/18/2005 +1 days 🔍
07/04/2025 +7291 days 🔍

Sourcesinfo

Vendor: mit.edu

Advisory: web.mit.edu
Researcher: Daniel Wachdorf
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2005-1174 (🔍)
GCVE (CVE): GCVE-0-2005-1174
GCVE (VulDB): GCVE-100-1599

OVAL: 🔍

CERT: 🔍
X-Force: 21327 - Kerberos KDC krb5 TCP connection denial of service, Medium Risk
SecurityFocus: 14240 - MIT Kerberos 5 Key Distribution Center Remote Denial of Service Vulnerability
Secunia: 16041 - Kerberos V5 Multiple Vulnerabilities, Highly Critical
OSVDB: 17843 - MIT Kerberos 5 Key Distribution Center (KDC) krb5_unparse_name Overflow
SecurityTracker: 1014460
Vulnerability Center: 8532
Vupen: ADV-2005-1066

See also: 🔍

Entryinfo

Created: 07/15/2005 11:56
Updated: 07/04/2025 12:37
Changes: 07/15/2005 11:56 (90), 07/03/2019 16:11 (7), 06/14/2024 19:16 (17), 12/28/2024 01:48 (1), 07/04/2025 12:37 (2)
Complete: 🔍
Cache ID: 216::103

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