Synopsis: Moderate: openssl security update
Issue Date: 2013-03-04
CVE Numbers: CVE-2013-0169
CVE-2012-4929
CVE-2013-0166
—
It was discovered that OpenSSL leaked timing information when decrypting
TLS/SSL and DTLS protocol encrypted records when CBC-mode cipher suites
were used. A remote attacker could possibly use this flaw to retrieve
plain text from the encrypted packets by using a TLS/SSL or DTLS server as
a padding oracle. (CVE-2013-0169)
A NULL pointer dereference flaw was found in the OCSP response
verification in OpenSSL. A malicious OCSP server could use this flaw to
crash applications performing OCSP verification by sending a specially-
crafted response. (CVE-2013-0166)
It was discovered that the TLS/SSL protocol could leak information about
plain text when optional compression was used. An attacker able to control
part of the plain text sent over an encrypted TLS/SSL connection could
possibly use this flaw to recover other portions of the plain text.
(CVE-2012-4929)
Note: This update disables zlib compression, which was previously enabled
in OpenSSL by default. Applications using OpenSSL now need to explicitly
enable zlib compression to use it.
It was found that OpenSSL read certain environment variables even when
used by a privileged (setuid or setgid) application. A local attacker
could use this flaw to escalate their privileges. No application shipped
with Scientific Linux 5 and 6 was affected by this problem.
For the update to take effect, all services linked to the OpenSSL library
must be restarted, or the system rebooted.
—
SL5
x86_64
openssl-0.9.8e-26.el5_9.1.i686.rpm
openssl-0.9.8e-26.el5_9.1.x86_64.rpm
openssl-debuginfo-0.9.8e-26.el5_9.1.i686.rpm
openssl-debuginfo-0.9.8e-26.el5_9.1.x86_64.rpm
openssl-perl-0.9.8e-26.el5_9.1.x86_64.rpm
openssl-debuginfo-0.9.8e-26.el5_9.1.i386.rpm
openssl-devel-0.9.8e-26.el5_9.1.i386.rpm
openssl-devel-0.9.8e-26.el5_9.1.x86_64.rpm
i386
openssl-0.9.8e-26.el5_9.1.i386.rpm
openssl-0.9.8e-26.el5_9.1.i686.rpm
openssl-debuginfo-0.9.8e-26.el5_9.1.i386.rpm
openssl-debuginfo-0.9.8e-26.el5_9.1.i686.rpm
openssl-perl-0.9.8e-26.el5_9.1.i386.rpm
openssl-devel-0.9.8e-26.el5_9.1.i386.rpm
SL6
x86_64
openssl-1.0.0-27.el6_4.2.i686.rpm
openssl-1.0.0-27.el6_4.2.x86_64.rpm
openssl-debuginfo-1.0.0-27.el6_4.2.i686.rpm
openssl-debuginfo-1.0.0-27.el6_4.2.x86_64.rpm
openssl-devel-1.0.0-27.el6_4.2.i686.rpm
openssl-devel-1.0.0-27.el6_4.2.x86_64.rpm
openssl-perl-1.0.0-27.el6_4.2.x86_64.rpm
openssl-static-1.0.0-27.el6_4.2.x86_64.rpm
i386
openssl-1.0.0-27.el6_4.2.i686.rpm
openssl-debuginfo-1.0.0-27.el6_4.2.i686.rpm
openssl-devel-1.0.0-27.el6_4.2.i686.rpm
openssl-perl-1.0.0-27.el6_4.2.i686.rpm
openssl-static-1.0.0-27.el6_4.2.i686.rpm
– Scientific Linux Development Team
