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centosCentOS ProjectCESA-2012:0086
HistoryFeb 01, 2012 - 10:15 p.m.

openssl security update

2012-02-0122:15:00
CentOS Project
lists.centos.org
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CentOS Errata and Security Advisory CESA-2012:0086

OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL v2/v3)
and Transport Layer Security (TLS v1) protocols, as well as a
full-strength, general purpose cryptography library.

An information leak flaw was found in the SSL 3.0 protocol implementation
in OpenSSL. Incorrect initialization of SSL record padding bytes could
cause an SSL client or server to send a limited amount of possibly
sensitive data to its SSL peer via the encrypted connection.
(CVE-2011-4576)

It was discovered that OpenSSL did not limit the number of TLS/SSL
handshake restarts required to support Server Gated Cryptography. A remote
attacker could use this flaw to make a TLS/SSL server using OpenSSL consume
an excessive amount of CPU by continuously restarting the handshake.
(CVE-2011-4619)

All OpenSSL users should upgrade to these updated packages, which contain
backported patches to resolve these issues. For the update to take effect,
all services linked to the OpenSSL library must be restarted, or the system
rebooted.

Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2012-February/080574.html

Affected packages:
openssl
openssl-devel
openssl-perl

Upstream details at:
https://access.redhat.com/errata/RHSA-2012:0086