GnuTLS up to 2.9.9 CA Certificate Expiry Date code

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.4	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as critical has been found in GnuTLS up to 2.9.9. The affected element is an unknown function of the component CA Certificate Expiry Date Handler. Executing a manipulation can lead to Remote Code Execution. This vulnerability appears as CVE-2014-8155. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical was found in GnuTLS up to 2.9.9 (Network Encryption Software). This vulnerability affects an unknown part of the component CA Certificate Expiry Date Handler. The manipulation with an unknown input leads to a code vulnerability. The CWE definition for the vulnerability is CWE-17. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

GnuTLS before 2.9.10 does not verify the activation and expiration dates of CA certificates, which allows man-in-the-middle attackers to spoof servers via a certificate issued by a CA certificate that is (1) not yet valid or (2) no longer valid.

The weakness was presented 08/14/2015 with Red Hat (Website). The advisory is shared for download at gitlab.com. This vulnerability was named CVE-2014-8155 since 10/10/2014. The exploitation appears to be difficult. 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 vulnerability scanner Nessus provides a plugin with the ID 82166 (Debian DLA-180-1 : gnutls26 security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 350423 (Amazon Linux Security Advisory for gnutls: AL2012-2015-088).

Upgrading to version 2.9.10 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (82166) and SecurityFocus (BID 73317†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Network Encryption Software

Name

• GnuTLS

Version

• 2.9.0
• 2.9.1
• 2.9.2
• 2.9.3
• 2.9.4
• 2.9.5
• 2.9.6
• 2.9.7
• 2.9.8
• 2.9.9

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Code
CWE: CWE-17
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 82166
Nessus Name: Debian DLA-180-1 : gnutls26 security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 14611
OpenVAS Name: Amazon Linux Local Check: ALAS-2015-575
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 2.9.10
Patch: gitlab.com

Timelineinfo

10/10/2014 🔍
03/24/2015 +165 days 🔍
08/14/2015 +143 days 🔍
08/14/2015 +0 days 🔍
08/15/2015 +1 days 🔍
06/12/2022 +2493 days 🔍

Sourcesinfo

Advisory: K53330207
Organization: Red Hat
Status: Not defined
Confirmation: 🔍

CVE: CVE-2014-8155 (🔍)
GCVE (CVE): GCVE-0-2014-8155
GCVE (VulDB): GCVE-100-77248
SecurityFocus: 73317 - GnuTLS CVE-2014-8155 Certificate Validation Security Bypass Vulnerability

Entryinfo

Created: 08/15/2015 21:14
Updated: 06/12/2022 10:23
Changes: 08/15/2015 21:14 (54), 10/09/2017 09:50 (10), 06/12/2022 10:11 (4), 06/12/2022 10:16 (1), 06/12/2022 10:23 (1)
Complete: 🔍
Cache ID: 216:7A7:103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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