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Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200609-05] OpenSSL, AMD64 x86 emulation base libraries: RSA signature forgery


Vulnerability Assessment Details

[GLSA-200609-05] OpenSSL, AMD64 x86 emulation base libraries: RSA signature forgery

Vulnerability Assessment Summary
OpenSSL, AMD64 x86 emulation base libraries: RSA signature forgery

Detailed Explanation for this Vulnerability Assessment
The remote host is affected by the vulnerability described in GLSA-200609-05
(OpenSSL, AMD64 x86 emulation base libraries: RSA signature forgery)


Daniel Bleichenbacher discovered that it might be possible to forge
signatures signed by RSA keys with the exponent of 3.

Impact

Since several CAs are using an exponent of 3 it might be possible for
a possible hacker to create a key with a false CA signature.

Workaround

There is no known workaround at this time.

References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4339


Solution:
All OpenSSL users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-libs/openssl-0.9.7k"
All AMD64 x86 emulation base libraries users should upgrade to the
latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-emulation/emul-linux-x86-baselibs-2.5.2"


Network Security Threat Level: Medium


Networks Security ID:

Vulnerability Assessment Copyright: (C) 2006 Michel Arboi

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