OpenSSL up to 0.9.8c SSL_get_shared_ciphers memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability classified as very critical was found in OpenSSL. This affects the function SSL_get_shared_ciphers. Such manipulation leads to memory corruption. This vulnerability is documented as CVE-2006-3738. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in OpenSSL (Network Encryption Software). Affected by this issue is the function SSL_get_shared_ciphers. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Buffer overflow in the SSL_get_shared_ciphers function in OpenSSL 0.9.7 before 0.9.7l, 0.9.8 before 0.9.8d, and earlier versions has unspecified impact and remote attack vectors involving a long list of ciphers.

The bug was discovered 09/27/2007. The weakness was released 09/28/2006 by Tavis Ormandy and Will Drewry with Google Security Team (Website). The advisory is shared for download at openssl.org. This vulnerability is handled as CVE-2006-3738 since 07/20/2006. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 01/13/2025).

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1367 days. During that time the estimated underground price was around $100k and more. The vulnerability scanner Nessus provides a plugin with the ID 26950 (Mandrake Linux Security Advisory : openssl (MDKSA-2007:193)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Mandriva Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 185030 (HP-UX Running OpenSSL Multiple Vulnerabilities (HPSBUX02174)).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at openssl.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published 2 years after the disclosure of the vulnerability. Attack attempts may be identified with Snort ID 8426. In this case the pattern |01 00 02| is used for detection. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 5077.

The vulnerability is also documented in the databases at X-Force (29237), Tenable (26950), SecurityFocus (BID 20249†), OSVDB (29262†) and Secunia (SA30161†). Entries connected to this vulnerability are available at VDB-1786, VDB-1803, VDB-1858 and VDB-1857. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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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: 7.3
VulDB Meta Temp Score: 6.4

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
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: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 26950
Nessus Name: Mandrake Linux Security Advisory : openssl (MDKSA-2007:193)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 57478
OpenVAS Name: Debian Security Advisory DSA 1185-1 (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: 🔍

Patch: openssl.org

Snort ID: 8426
Snort Message: WEB-MISC SSLv2 openssl get shared ciphers overflow attempt
Snort Pattern: 🔍
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

SourceFire IPS: 🔍
ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

12/31/2002 🔍
07/20/2006 +1297 days 🔍
09/28/2006 +70 days 🔍
09/28/2006 +0 days 🔍
09/28/2006 +0 days 🔍
09/28/2006 +0 days 🔍
09/28/2006 +0 days 🔍
09/29/2006 +0 days 🔍
09/29/2006 +0 days 🔍
10/03/2006 +4 days 🔍
09/27/2007 +359 days 🔍
10/07/2007 +10 days 🔍
10/09/2007 +2 days 🔍
05/12/2008 +216 days 🔍
01/13/2025 +6090 days 🔍

Sourcesinfo

Product: openssl.org

Advisory: openssl.org
Researcher: Tavis Ormandy, Will Drewry
Organization: Google Security Team
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2006-3738 (🔍)
GCVE (CVE): GCVE-0-2006-3738
GCVE (VulDB): GCVE-100-2576

OVAL: 🔍

CERT: 🔍
X-Force: 29237 - OpenSSL SSL_get_shared_ciphers() buffer overflow, High Risk
SecurityFocus: 20249 - OpenSSL SSL_Get_Shared_Ciphers Buffer Overflow Vulnerability
Secunia: 30161 - Gentoo ltsp Multiple Vulnerabilities, Highly Critical
OSVDB: 29262 - OpenSSL SSL_get_shared_ciphers Function Unspecified Remote Overflow
SecurityTracker: 1016943
Vulnerability Center: 12815 - [cisco-sr-20061108-openssl, cisco-air-20061108-openssl] OpenSSL Buffer Overflow Allows Remote DoS and Code Execution, High
Vupen: ADV-2006-4443

See also: 🔍

Entryinfo

Created: 09/29/2006 10:44
Updated: 01/13/2025 04:21
Changes: 09/29/2006 10:44 (111), 07/08/2019 22:24 (6), 01/13/2025 04:21 (17)
Complete: 🔍
Cache ID: 216:3AD:103

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