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The remote Red Hat host is missing one or more security updates.
Updated OpenSSL packages that correct a security issue and various
bugs are now available for Red Hat Enterprise Linux 4.
This update has been rated as having moderate security impact by the
Red Hat Security Response Team.
OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL
v2/v3) and Transport Layer Security (TLS v1) protocols, and is also a
full-strength general-purpose cryptography library.
A flaw was found in the SSL_get_shared_ciphers() utility function. An
attacker could send a list of ciphers to an application that used this
function and overrun a buffer by a single byte (CVE-2007-5135). Few
applications make use of this vulnerable function and generally it is
used only when applications are compiled for debugging.
A number of possible side-channel attacks were discovered affecting
OpenSSL. A local attacker could possibly obtain RSA private keys being
used on a system. In practice these attacks would be difficult to
perform outside of a lab environment. This update contains backported
patches to mitigate these issues. (CVE-2007-3108)
As well, these updated packages fix the following bugs :
* multithreaded applications could cause a segmentation fault or
deadlock when calling the random number generator initialization
(RAND_poll) in the OpenSSL library, for a large number of threads
* in certain circumstances, if an application using the OpenSSL
library reused the SSL session cache for multiple purposes (with
various parameters of the SSL protocol), the session parameters could
* a segmentation fault could occur when a corrupted pkcs12 file was
being loaded using the 'openssl pkcs12 -in [pkcs12-file]' command,
where [pkcs12-file] is the pkcs12 file.
Users of OpenSSL should upgrade to these updated packages, which
contain backported patches to resolve these issues.
Note: After installing this update, users are advised to either
restart all services that use OpenSSL or restart their system.
See also :
Update the affected openssl, openssl-devel and / or openssl-perl
Risk factor :
Medium / CVSS Base Score : 6.8
CVSS Temporal Score : 5.9
Public Exploit Available : false
Family: Red Hat Local Security Checks
Nessus Plugin ID: 28243 ()
Bugtraq ID: 25831
CVE ID: CVE-2007-3108CVE-2007-5135
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