Ubuntu Security Notice USN-113-1
3rd May, 2005
libnet-ssleay-perl vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 5.04
Details
Javier Fernandez-Sanguino Pena discovered that this library used the
file /tmp/entropy as a fallback entropy source if a proper source was
not set in the environment variable EGD_PATH. This can potentially
lead to weakened cryptographic operations if an attacker provides a
/tmp/entropy file with known content.
The updated package requires the specification of an entropy source
with EGD_PATH and also requires that the source is a socket (as
opposed to a normal file).
Please note that this only affects systems which have egd installed
from third party sources; egd is not shipped with Ubuntu.
Update instructions
The problem can be corrected by updating your system to the following package version:
- Ubuntu 5.04:
- libnet-ssleay-perl
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
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