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Home >> Browse Vulnerability Assessment Database >> Debian Local Security Checks >> [DSA288] DSA-288-1 openssl

Vulnerability Assessment Details

[DSA288] DSA-288-1 openssl

Vulnerability Assessment Summary
DSA-288-1 openssl

Detailed Explanation for this Vulnerability Assessment

Researchers discovered two flaws in OpenSSL, a Secure Socket Layer
(SSL) library and related cryptographic tools. Applications that are
linked against this library are generally vulnerable to attacks that
could leak the server's private key or make the encrypted session
decryptable otherwise. The Common Vulnerabilities and Exposures (CVE)
project identified the following vulnerabilities:
For the stable distribution (woody) these problems have been fixed in
version 0.9.6c-2.woody.3.
For the old stable distribution (potato) these problems have been
fixed in version 0.9.6c-0.potato.6.
For the unstable distribution (sid) these problems have been fixed in
version 0.9.7b-1 of openssl and version 0.9.6j-1 of openssl096.
We recommend that you upgrade your openssl packages immediately and
restart the applications that use OpenSSL.
Unfortunately, RSA blinding is not thread-safe and will cause failures
for programs that use threads and OpenSSL such as stunnel. However,
since the proposed fix would change the binary interface (ABI),
programs that are dynamically linked against OpenSSL won't run
anymore. This is a dilemma we can't solve.
You will have to decide whether you want the security update which is
not thread-safe and recompile all applications that apparently fail
after the upgrade, or fetch the additional source packages at the end
of this advisory, recompile it and use a thread-safe OpenSSL library
again, but also recompile all applications that make use of it (such
as apache-ssl, mod_ssl, ssh etc.).
However, since only very few packages use threads and link against the
OpenSSL library most users will be able to use packages from this
update without any problems.

Solution : http://www.debian.org/security/2003/dsa-288
Network Security Threat Level: High

Networks Security ID: 7101, 7148

Vulnerability Assessment Copyright: This script is (C) 2005 Michel Arboi

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