OpenSSL up to 0.9.8s/1.0.0f RFC 3779 Certificate Data Parser resource management

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.
5.1	$0-$5k	0.00

Summaryinfo

A vulnerability identified as problematic has been detected in OpenSSL up to 0.9.8s/1.0.0f. The impacted element is an unknown function of the component RFC 3779 Certificate Data Parser. The manipulation leads to resource management. This vulnerability is uniquely identified as CVE-2011-4577. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in OpenSSL up to 0.9.8s/1.0.0f (Network Encryption Software). It has been rated as problematic. This issue affects some unknown functionality of the component RFC 3779 Certificate Data Parser. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. The summary by CVE is:

OpenSSL before 0.9.8s and 1.x before 1.0.0f, when RFC 3779 support is enabled, allows remote attackers to cause a denial of service (assertion failure) via an X.509 certificate containing certificate-extension data associated with (1) IP address blocks or (2) Autonomous System (AS) identifiers.

The weakness was disclosed 01/04/2012 by Andrew with Information Security Group at Royal Holloway, University of London (Website). The advisory is shared at openssl.org. The identification of this vulnerability is CVE-2011-4577 since 11/29/2011. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 69645 (Amazon Linux AMI : openssl (ALAS-2012-38)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Amazon Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 216041 (VMWare ESXi 5.0.0 Patch ESXi500-Update02 Missing (KB2033751)).

Upgrading to version 0.9.8s or 1.0.0f eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (72131), Tenable (69645), SecurityFocus (BID 51281†), OSVDB (78189†) and Secunia (SA47426†). The entries VDB-4291, VDB-4514, VDB-4515 and VDB-4519 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Network Encryption Software

Name

• OpenSSL

Version

• 0.9.8
• 0.9.8a
• 0.9.8b
• 0.9.8c
• 0.9.8d
• 0.9.8e
• 0.9.8f
• 0.9.8g
• 0.9.8h
• 0.9.8i
• 0.9.8j
• 0.9.8k
• 0.9.8l
• 0.9.8m
• 0.9.8n
• 0.9.8o
• 0.9.8p
• 0.9.8q
• 0.9.8r
• 0.9.8s
• 1.0.0
• 1.0.0a
• 1.0.0b
• 1.0.0c
• 1.0.0d
• 1.0.0e
• 1.0.0f

License

• open-source

Support

• end of life (old version)

Website

• Product: https://www.openssl.org/

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

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
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: 69645
Nessus Name: Amazon Linux AMI : openssl (ALAS-2012-38)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 70756
OpenVAS Name: FreeBSD Ports: openssl
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: OpenSSL 0.9.8s/1.0.0f

Timelineinfo

11/29/2011 🔍
01/04/2012 +36 days 🔍
01/04/2012 +0 days 🔍
01/05/2012 +1 days 🔍
01/05/2012 +0 days 🔍
01/05/2012 +0 days 🔍
01/05/2012 +0 days 🔍
01/05/2012 +0 days 🔍
01/06/2012 +1 days 🔍
01/12/2012 +5 days 🔍
01/21/2012 +9 days 🔍
08/08/2024 +4583 days 🔍

Sourcesinfo

Product: openssl.org

Advisory: openssl.org
Researcher: Andrew
Organization: Information Security Group at Royal Holloway, University of London
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-4577 (🔍)
GCVE (CVE): GCVE-0-2011-4577
GCVE (VulDB): GCVE-100-4517

OVAL: 🔍
IAVM: 🔍

CERT: 🔍
X-Force: 72131
SecurityFocus: 51281 - OpenSSL Multiple Vulnerabilities
Secunia: 47426 - OpenSSL Multiple Vulnerabilities, Moderately Critical
OSVDB: 78189
SecurityTracker: 1026485 - OpenSSL Bugs Let Remote Users Deny Service, Obtain Information, and Potentially Execute Arbitrary Code
Vulnerability Center: 34213 - OpenSSL Before 0.9.8s and 1.x Before 1.0.0f Remote DoS Vulnerability via a Crafted X.509 Certificate, Low

See also: 🔍

Entryinfo

Created: 01/21/2012 01:00
Updated: 08/08/2024 09:56
Changes: 01/21/2012 01:00 (78), 04/09/2017 13:22 (11), 03/20/2021 11:28 (3), 08/08/2024 09:56 (16)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion

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