OpenSSL up to 1.0.1b CBC Encryption numeric error

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

Summaryinfo

A vulnerability identified as problematic has been detected in OpenSSL up to 1.0.1b. The affected element is an unknown function in the library CBC Encryption. Performing a manipulation results in numeric error. This vulnerability is known as CVE-2012-2333. Furthermore, an exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in OpenSSL up to 1.0.1b (Network Encryption Software). This affects some unknown functionality in the library CBC Encryption. The manipulation with an unknown input leads to a numeric error vulnerability. CWE is classifying the issue as CWE-189. This is going to have an impact on availability. The summary by CVE is:

Integer underflow in OpenSSL before 0.9.8x, 1.0.0 before 1.0.0j, and 1.0.1 before 1.0.1c, when TLS 1.1, TLS 1.2, or DTLS is used with CBC encryption, allows remote attackers to cause a denial of service (buffer over-read) or possibly have unspecified other impact via a crafted TLS packet that is not properly handled during a certain explicit IV calculation.

The weakness was published 05/10/2012 with Codenomicon as confirmed knowledge base article (Website). The advisory is shared at openssl.org. The public release happened without involvement of the project team. This vulnerability is uniquely identified as CVE-2012-2333 since 04/19/2012. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a private exploit are known.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 69692 (Amazon Linux AMI : openssl (ALAS-2012-85)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Amazon Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 120905 (Solaris 11 Support Repository Update (SRU) 9.5 Missing).

Upgrading to version 1.0.1c, 1.0.0j 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 (75525), Tenable (69692), SecurityFocus (BID 53476†), OSVDB (81810†) and Secunia (SA49116†). Similar entries are available at VDB-5777, VDB-5760, VDB-6772 and VDB-60754. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

Support

  • end of life (old version)

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

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: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Private
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 69692
Nessus Name: Amazon Linux AMI : openssl (ALAS-2012-85)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 71353
OpenVAS Name: Debian Security Advisory DSA 2475-1 (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 1.0.1c, 1.0.0j

Timelineinfo

04/19/2012 🔍
05/10/2012 +21 days 🔍
05/10/2012 +0 days 🔍
05/10/2012 +0 days 🔍
05/11/2012 +1 days 🔍
05/11/2012 +0 days 🔍
05/14/2012 +3 days 🔍
05/15/2012 +1 days 🔍
05/17/2012 +2 days 🔍
05/24/2012 +7 days 🔍
09/04/2013 +468 days 🔍
12/23/2024 +4128 days 🔍

Sourcesinfo

Product: openssl.org

Advisory: openssl.org
Organization: Codenomicon
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2012-2333 (🔍)
GCVE (CVE): GCVE-0-2012-2333
GCVE (VulDB): GCVE-100-5385

OVAL: 🔍

CERT: 🔍
X-Force: 75525
SecurityFocus: 53476 - OpenSSL DTLS CVE-2012-2333 Remote Denial of Service Vulnerability
Secunia: 49116 - OpenSSL TLS Packet Parsing Integer Underflow Denial of Service Vulnerability, Moderately Critical
OSVDB: 81810
SecurityTracker: 1027057 - OpenSSL Invalid TLS/DTLS Record Processing Lets Remote Users Deny Service
Vulnerability Center: 35153 - OpenSSL Before 0.9.8x, 1.0.0 Before 1.0.0j, and 1.0.1 Before 1.0.1c Remote DoS Vulnerability, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 05/15/2012 11:22
Updated: 12/23/2024 07:47
Changes: 05/15/2012 11:22 (77), 04/12/2017 16:17 (14), 03/24/2021 15:09 (3), 12/23/2024 07:47 (15)
Complete: 🔍
Cache ID: 216::103

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

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