OpenSSL 0.9.6j/0.9.7b memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in OpenSSL 0.9.6j/0.9.7b. The impacted element is an unknown function. Executing a manipulation can lead to memory corruption. The identification of this vulnerability is CVE-2003-0545. The attack may be launched remotely. Furthermore, there is an exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in OpenSSL 0.9.6j/0.9.7b (Network Encryption Software). It has been declared as critical. This vulnerability affects an unknown part. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Double free vulnerability in OpenSSL 0.9.7 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via an SSL client certificate with a certain invalid ASN.1 encoding.

The bug was discovered 09/30/2003. The weakness was shared 09/30/2003 by Stephen Henson with OpenSSL (Website). The advisory is shared for download at openssl.org. This vulnerability was named CVE-2003-0545 since 07/14/2003. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are unknown but a public exploit is available.

A public exploit has been developed in ANSI C and been published immediately after the advisory. It is possible to download the exploit at securityfocus.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 15231 (Debian DSA-394-1 : openssl095 - ASN.1 parsing vulnerability), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 38224 (OpenSSL ASN.1 Parsing Vulnerabilities).

Upgrading to version 0.9.7c 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 weeks after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 3490.

The vulnerability is also documented in the databases at X-Force (13316), Tenable (15231), SecurityFocus (BID 8732†), OSVDB (3686†) and Secunia (SA9886†). Additional details are provided at uniras.gov.uk. The entries VDB-20956, VDB-20957 and VDB-27831 are related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

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: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
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: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 15231
Nessus Name: Debian DSA-394-1 : openssl095 - ASN.1 parsing vulnerability
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 53375
OpenVAS Name: Debian Security Advisory DSA 394-1 (openssl095)
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: 🔍
Exploit Delay Time: 🔍

Upgrade: OpenSSL 0.9.7c
Patch: openssl.org
TippingPoint: 🔍
PaloAlto IPS: 🔍

Timelineinfo

07/14/2003 🔍
09/30/2003 +78 days 🔍
09/30/2003 +0 days 🔍
09/30/2003 +0 days 🔍
09/30/2003 +0 days 🔍
09/30/2003 +0 days 🔍
09/30/2003 +0 days 🔍
10/01/2003 +1 days 🔍
10/11/2003 +10 days 🔍
10/26/2003 +15 days 🔍
11/17/2003 +22 days 🔍
01/21/2004 +65 days 🔍
09/29/2004 +251 days 🔍
12/26/2024 +7393 days 🔍

Sourcesinfo

Product: openssl.org

Advisory: openssl.org
Researcher: Stephen Henson
Organization: OpenSSL
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2003-0545 (🔍)
GCVE (CVE): GCVE-0-2003-0545
GCVE (VulDB): GCVE-100-304

OVAL: 🔍

CERT: 🔍
X-Force: 13316 - OpenSSL ASN.1 SSL certificate denial of service, Medium Risk
SecurityFocus: 8732 - OpenSSL ASN.1 Parsing Vulnerabilities
Secunia: 9886 - OpenSSL Multiple Vulnerabilities in Client Certificate Handling, Highly Critical
OSVDB: 3686 - OpenSSL ASN.1 Client Certificate Overflow DoS
Vulnerability Center: 2685 - OpenSSL 0.9.7 ASN.1 Encoding Allows DoS and Code execution, Critical
Vupen: ADV-2006-3900

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

Entryinfo

Created: 09/30/2003 18:09
Updated: 12/26/2024 13:53
Changes: 09/30/2003 18:09 (108), 06/26/2019 16:15 (3), 12/26/2024 13:53 (18)
Complete: 🔍
Cache ID: 216:A8F:103

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

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