Buffer overflow when handling ASCII characters in OpenSSL



Published: 2002-08-12 | Updated: 2016-08-01
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2002-0655
CWE-ID CWE-119
CWE-190
CWE-674
CWE-787
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		OpenSSL
Server applications / Encryption software

Vendor OpenSSL Software Foundation

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Buffer overflow when handling ASCII characters

EUVDB-ID: #VU100

Risk: High

CVSSv3.1: 8.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2002-0655

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper handling of ASCII representations of integers on 64-bit platforms. A remote unauthenticated attacker can cause a denial of service or possible arbitrary code execution.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Apply the attached patch to OpenSSL 0.9.6d, or upgrade to OpenSSL 0.9.6e.
A patch for 0.9.7 is available from the OpenSSL website:

https://www.openssl.org/

Vulnerable software versions

OpenSSL: 0.9.6 - 0.9.6d

External links

http://www.openssl.org/news/secadv/20020730.


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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