CVE-2002-1568: Buffer Overflow

Published Oct 8, 2003

Updated

OpenSSL 0.9.6e uses assertions when detecting buffer overflow attacks instead of less severe mechanisms, which allows remote attackers to cause a denial of service (crash) via certain messages that cause OpenSSL to abort from a failed assertion, as demonstrated using SSLv2 CLIENTMASTERKEY messages, which are not properly handled in s2srvr.c.

Affected Software

1 affected component

OpenSSL OpenSSL=0.9.6e

Remediation

Patch Available

http://cvs.openssl.org/chngview?cn=7659

Event History

Oct 8, 2003

CVE Published

via MITRE·08:00 AM

Data Sourced

via MITRE·08:00 AM

Description

Frequently Asked Questions

What is the severity of CVE-2002-1568?

CVE-2002-1568 is considered a denial of service vulnerability.

How do I fix CVE-2002-1568?

To fix CVE-2002-1568, upgrade to a later version of OpenSSL that does not use assertions to handle buffer overflow attacks.

What versions of OpenSSL are affected by CVE-2002-1568?

CVE-2002-1568 specifically affects OpenSSL version 0.9.6e.

What types of attacks can CVE-2002-1568 exploit?

CVE-2002-1568 can be exploited through crafted SSLv2 CLIENT_MASTER_KEY messages to cause a denial of service.

Does CVE-2002-1568 allow remote attackers to gain access?

CVE-2002-1568 does not allow remote attackers to gain access but can crash the OpenSSL service.