CVE-2002-1568 Denial of service in n/a

Medium 5.0 Published 8 Oct 2003 Updated 8 Aug 2024

Remote attackers can cause a denial of service by sending malformed SSLv2 messages that trigger an assertion failure in OpenSSL.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2002-1568?

CVE-2002-1568 is a medium-severity denial of service vulnerability in Openssl Openssl, published on 8 Oct 2003. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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 CLIENT_MASTER_KEY messages, which are not properly handled in s2_srvr.c.

Which versions are affected by CVE-2002-1568?

It affects 1 product.

Products include Openssl Openssl.

How do I fix CVE-2002-1568?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2002-1568 being exploited?

There is no known exploitation of CVE-2002-1568 in the wild and no public exploit code.

All Openssl Openssl vulnerabilities

Sources

Also known as DEBIAN-CVE-2002-1568, GHSA-3626-95rf-mfw3.