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Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200510-11] OpenSSL: SSL 2.0 protocol rollback


Vulnerability Assessment Details

[GLSA-200510-11] OpenSSL: SSL 2.0 protocol rollback

Vulnerability Assessment Summary
OpenSSL: SSL 2.0 protocol rollback

Detailed Explanation for this Vulnerability Assessment
The remote host is affected by the vulnerability described in GLSA-200510-11
(OpenSSL: SSL 2.0 protocol rollback)


Applications setting the SSL_OP_MSIE_SSLV2_RSA_PADDING option (or
the SSL_OP_ALL option, that implies it) can be forced by a third-party
to fallback to the less secure SSL 2.0 protocol, even if both parties
support the more secure SSL 3.0 or TLS 1.0 protocols.

Impact

A man-in-the-middle attacker can weaken the encryption used to
communicate between two parties, potentially revealing sensitive
information.

Workaround

If possible, disable the use of SSL 2.0 in all OpenSSL-enabled
applications.

References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-2969
http://www.openssl.org/news/secadv_20051011.txt


Solution:
All OpenSSL users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose dev-libs/openssl


Network Security Threat Level: Low


Networks Security ID:

Vulnerability Assessment Copyright: (C) 2005 Michel Arboi

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