OpenSSL up to 0.9.7 on 64-bit ASCII memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability was found in OpenSSL up to 0.9.7 on 64-bit. It has been rated as critical. This impacts an unknown function of the component ASCII Handler. The manipulation leads to memory corruption. This vulnerability is traded as CVE-2002-0655. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in OpenSSL up to 0.9.7 on 64-bit (Network Encryption Software) and classified as critical. This issue affects an unknown function of the component ASCII Handler. 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. The summary by CVE is:

OpenSSL 0.9.6d and earlier, and 0.9.7-beta2 and earlier, does not properly handle ASCII representations of integers on 64 bit platforms, which could allow attackers to cause a denial of service and possibly execute arbitrary code.

The issue has been introduced in 12/23/1998. The weakness was shared 08/12/2002 by DiGiT as confirmed advisory (CERT.org). It is possible to read the advisory at kb.cert.org. The identification of this vulnerability is CVE-2002-0655. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 1315 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 14973 (Debian DSA-136-1 : openssl - multiple remote exploits), 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 38373 (Red Hat Multiple OpenSSL Vulnerabilities).

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (9717), Tenable (14973), SecurityFocus (BID 5364†) and Vulnerability Center (SBV-1403†). The entries VDB-18600 and VDB-27831 are related to this item. Be aware that VulDB is the high quality source for 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: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
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: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 14973
Nessus Name: Debian DSA-136-1 : openssl - multiple remote exploits
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
McAfee IPS: 🔍
McAfee IPS Version: 🔍

Timelineinfo

12/23/1998 🔍
07/30/2002 +1315 days 🔍
07/30/2002 +0 days 🔍
08/12/2002 +13 days 🔍
08/12/2002 +0 days 🔍
08/12/2002 +0 days 🔍
07/09/2003 +331 days 🔍
09/29/2004 +448 days 🔍
07/22/2014 +3583 days 🔍
06/22/2024 +3623 days 🔍

Sourcesinfo

Product: openssl.org

Advisory: kb.cert.org
Researcher: DiGiT
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2002-0655 (🔍)
GCVE (CVE): GCVE-0-2002-0655
GCVE (VulDB): GCVE-100-18599
CERT: 🔍
X-Force: 9717
SecurityFocus: 5364 - OpenSSL ASCII Representation Of Integers Buffer Overflow Vulnerability
Vulnerability Center: 1403 - Buffer Overflow in OpenSSL Handling of ASCII Integer Representation Allows Arbitrary Code Execution, High

See also: 🔍

Entryinfo

Created: 07/22/2014 22:36
Updated: 06/22/2024 19:28
Changes: 07/22/2014 22:36 (74), 05/10/2019 16:41 (2), 06/27/2021 14:30 (3), 06/22/2024 19:28 (16)
Complete: 🔍
Cache ID: 216::103

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