gnu gnutls up to 1.2.7 lib/gnutls_algorithms.c _gnutls_x509_oid2mac_algorithm cryptographic issue

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in gnu gnutls up to 1.2.7. This issue affects the function _gnutls_x509_oid2mac_algorithm in the library lib/gnutls_algorithms.c. The manipulation leads to cryptographic issue. This vulnerability is documented as CVE-2006-7239. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in gnu gnutls up to 1.2.7 (Network Encryption Software) and classified as problematic. This issue affects the function _gnutls_x509_oid2mac_algorithm in the library lib/gnutls_algorithms.c. The manipulation with an unknown input leads to a cryptographic issue vulnerability. Using CWE to declare the problem leads to CWE-310. Impacted is availability. The summary by CVE is:

The _gnutls_x509_oid2mac_algorithm function in lib/gnutls_algorithms.c in GnuTLS before 1.4.2 allows remote attackers to cause a denial of service (crash) via a crafted X.509 certificate that uses a hash algorithm that is not supported by GnuTLS, which triggers a NULL pointer dereference.

The weakness was released 05/24/2010 (Website). The advisory is shared at lists.gnupg.org. The identification of this vulnerability is CVE-2006-7239. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1600 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 46812 (Ubuntu 6.06 LTS : gnutls12 vulnerability (USN-948-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 195104 (Ubuntu Security Notification for GnuTLS12 Vulnerability (USN-948-1)).

Upgrading to version 1.2.8 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (46812), SecurityFocus (BID 40568†) and Vulnerability Center (SBV-26015†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cryptographic issue
CWE: CWE-310
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: 46812
Nessus Name: Ubuntu 6.06 LTS : gnutls12 vulnerability (USN-948-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 840438
OpenVAS Name: Ubuntu Update for gnutls12 vulnerability USN-948-1
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: gnutls 1.2.8

Timelineinfo

08/11/2006 🔍
05/24/2010 +1381 days 🔍
05/24/2010 +0 days 🔍
05/24/2010 +0 days 🔍
05/24/2010 +0 days 🔍
06/04/2010 +11 days 🔍
06/13/2010 +9 days 🔍
03/19/2015 +1740 days 🔍
06/14/2025 +3740 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: lists.gnupg.org
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2006-7239 (🔍)
GCVE (CVE): GCVE-0-2006-7239
GCVE (VulDB): GCVE-100-53321

OVAL: 🔍

SecurityFocus: 40568 - GnuTLS X.509 Unknown Hash Algorithm Denial of Service Vulnerability
Vulnerability Center: 26015 - GnuTLS \x3C 1.4.2 _gnutls_x509_oid2mac_algorithm Function Remote DoS Vulnerability, Medium

Entryinfo

Created: 03/19/2015 12:22
Updated: 06/14/2025 20:49
Changes: 03/19/2015 12:22 (61), 02/27/2017 09:45 (9), 09/14/2021 08:26 (4), 09/14/2021 08:31 (1), 06/14/2025 20:49 (18)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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