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Perl Net::SSLeay Module Entropy Source Manipulation
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Secunia Advisory:
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SA15207
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Release Date:
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2005-05-04
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Popularity:
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6,241 views
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Critical:
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Less critical
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Impact:
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Manipulation of data
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Where:
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Local system
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Solution Status:
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Unpatched
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| Software: | Net::SSLeay 1.x (module for Perl)
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| CVE reference: | CVE-2005-0106
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Description:
Javier Fernandez-Sanguino Pena has reported a vulnerability in the Net::SSLeay module for Perl, which can be exploited by malicious, local users to weaken certain cryptographic operations.
The vulnerability is caused due an error where the entropy source is improperly taken from a temporary file if the "EGD_PATH" environment variable is not defined. This can be exploited to weaken certain cryptographic operations via a "/tmp/entropy" file with known contents.
Solution:
Set the "EGD_PATH" environment variable.
Provided and/or discovered by:
Javier Fernandez-Sanguino Pena
Original Advisory:
http://www.ubuntulinux.org/support/documentation/usn/usn-113-1
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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