MIT Kerberos up to 5-1.7 numeric error

CVSS Meta Temp Score
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CTI Interest Score
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10.0$5k-$25k0.00

Summaryinfo

A vulnerability described as critical has been identified in MIT Kerberos. This affects an unknown function of the component Kerberos. Executing a manipulation can lead to numeric error. This vulnerability is tracked as CVE-2009-4212. No exploit exists.

Detailsinfo

A vulnerability was found in MIT Kerberos (Network Authentication Software). It has been declared as very critical. This vulnerability affects an unknown code block of the component Kerberos. The manipulation with an unknown input leads to a numeric error vulnerability. The CWE definition for the vulnerability is CWE-189. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Multiple integer underflows in the (1) AES and (2) RC4 decryption functionality in the crypto library in MIT Kerberos 5 (aka krb5) 1.3 through 1.6.3, and 1.7 before 1.7.1, allow remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code by providing ciphertext with a length that is too short to be valid.

The weakness was disclosed 01/13/2010 as Bug 545015 as confirmed bug report (Bugzilla). The advisory is shared for download at bugzilla.redhat.com. This vulnerability was named CVE-2009-4212. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 04/13/2025).

The vulnerability scanner Nessus provides a plugin with the ID 67984 (Oracle Linux 3 / 4 / 5 : krb5 (ELSA-2010-0029)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 216010 (VMWare ESXi 4.1.0 Patch Release ESXi410-201010001 Missing (KB1027753)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (67984), SecurityFocus (BID 37749†), Secunia (SA38140†), SecurityTracker (ID 1023440†) and Vulnerability Center (SBV-24597†). The entries VDB-3948, VDB-47630, VDB-47629 and VDB-53257 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 10.0

VulDB Base Score: 10.0
VulDB Temp Score: 10.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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Exploitinginfo

Class: Numeric error
CWE: CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 67984
Nessus Name: Oracle Linux 3 / 4 / 5 : krb5 (ELSA-2010-0029)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 880353
OpenVAS Name: CentOS Update for krb5-devel CESA-2010:0029 centos3 i386
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/04/2009 🔍
01/12/2010 +39 days 🔍
01/13/2010 +1 days 🔍
01/13/2010 +0 days 🔍
01/13/2010 +0 days 🔍
07/12/2013 +1276 days 🔍
03/18/2015 +614 days 🔍
04/13/2025 +3679 days 🔍

Sourcesinfo

Vendor: mit.edu

Advisory: Bug 545015
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2009-4212 (🔍)
GCVE (CVE): GCVE-0-2009-4212
GCVE (VulDB): GCVE-100-51532

OVAL: 🔍

SecurityFocus: 37749
Secunia: 38140
SecurityTracker: 1023440
Vulnerability Center: 24597 - MIT Kerberos 5 AES and RC4 Decryption Remote Arbitrary Code Execution Vulnerability, Critical

See also: 🔍

Entryinfo

Created: 03/18/2015 15:15
Updated: 04/13/2025 10:54
Changes: 03/18/2015 15:15 (63), 02/20/2017 10:02 (6), 08/31/2021 08:48 (3), 08/31/2021 08:49 (1), 12/08/2024 02:16 (16), 04/13/2025 10:54 (1)
Complete: 🔍
Cache ID: 216:22D:103

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