Red Hat: 2010:0978-01: openssl: Moderate Advisory
Summary
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.
A ciphersuite downgrade flaw was found in the OpenSSL SSL/TLS server code.
A remote attacker could possibly use this flaw to change the ciphersuite
associated with a cached session stored on the server, if the server
enabled the SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG option, possibly
forcing the client to use a weaker ciphersuite after resuming the session.
(CVE-2010-4180, CVE-2008-7270)
Note: With this update, setting the SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG
option has no effect and this bug workaround can no longer be enabled.
All OpenSSL users should upgrade to these updated packages, which contain a
backported patch to resolve these issues. For the update to take effect,
all services linked to the OpenSSL library must be restarted, or the system
rebooted.
Summary
Solution
Before applying this update, make sure all previously-released errata
relevant to your system have been applied.
This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
References
https://www.redhat.com/security/data/cve/CVE-2008-7270.html https://www.redhat.com/security/data/cve/CVE-2010-4180.html https://access.redhat.com/security/updates/classification/#moderate
Package List
Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
i386:
openssl-0.9.8e-12.el5_5.7.i386.rpm
openssl-0.9.8e-12.el5_5.7.i686.rpm
openssl-debuginfo-0.9.8e-12.el5_5.7.i386.rpm
openssl-debuginfo-0.9.8e-12.el5_5.7.i686.rpm
openssl-perl-0.9.8e-12.el5_5.7.i386.rpm
x86_64:
openssl-0.9.8e-12.el5_5.7.i686.rpm
openssl-0.9.8e-12.el5_5.7.x86_64.rpm
openssl-debuginfo-0.9.8e-12.el5_5.7.i686.rpm
openssl-debuginfo-0.9.8e-12.el5_5.7.x86_64.rpm
openssl-perl-0.9.8e-12.el5_5.7.x86_64.rpm
RHEL Desktop Workstation (v. 5 client):
Source:
i386:
openssl-debuginfo-0.9.8e-12.el5_5.7.i386.rpm
openssl-devel-0.9.8e-12.el5_5.7.i386.rpm
x86_64:
openssl-debuginfo-0.9.8e-12.el5_5.7.i386.rpm
openssl-debuginfo-0.9.8e-12.el5_5.7.x86_64.rpm
openssl-devel-0.9.8e-12.el5_5.7.i386.rpm
openssl-devel-0.9.8e-12.el5_5.7.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
i386:
openssl-0.9.8e-12.el5_5.7.i386.rpm
openssl-0.9.8e-12.el5_5.7.i686.rpm
openssl-debuginfo-0.9.8e-12.el5_5.7.i386.rpm
openssl-debuginfo-0.9.8e-12.el5_5.7.i686.rpm
openssl-devel-0.9.8e-12.el5_5.7.i386.rpm
openssl-perl-0.9.8e-12.el5_5.7.i386.rpm
ia64:
openssl-0.9.8e-12.el5_5.7.i686.rpm
openssl-0.9.8e-12.el5_5.7.ia64.rpm
openssl-debuginfo-0.9.8e-12.el5_5.7.i686.rpm
openssl-debuginfo-0.9.8e-12.el5_5.7.ia64.rpm
openssl-devel-0.9.8e-12.el5_5.7.ia64.rpm
openssl-perl-0.9.8e-12.el5_5.7.ia64.rpm
ppc:
openssl-0.9.8e-12.el5_5.7.ppc.rpm
openssl-0.9.8e-12.el5_5.7.ppc64.rpm
openssl-debuginfo-0.9.8e-12.el5_5.7.ppc.rpm
openssl-debuginfo-0.9.8e-12.el5_5.7.ppc64.rpm
openssl-devel-0.9.8e-12.el5_5.7.ppc.rpm
openssl-devel-0.9.8e-12.el5_5.7.ppc64.rpm
openssl-perl-0.9.8e-12.el5_5.7.ppc.rpm
s390x:
openssl-0.9.8e-12.el5_5.7.s390.rpm
openssl-0.9.8e-12.el5_5.7.s390x.rpm
openssl-debuginfo-0.9.8e-12.el5_5.7.s390.rpm
openssl-debuginfo-0.9.8e-12.el5_5.7.s390x.rpm
openssl-devel-0.9.8e-12.el5_5.7.s390.rpm
openssl-devel-0.9.8e-12.el5_5.7.s390x.rpm
openssl-perl-0.9.8e-12.el5_5.7.s390x.rpm
x86_64:
openssl-0.9.8e-12.el5_5.7.i686.rpm
openssl-0.9.8e-12.el5_5.7.x86_64.rpm
openssl-debuginfo-0.9.8e-12.el5_5.7.i386.rpm
openssl-debuginfo-0.9.8e-12.el5_5.7.i686.rpm
openssl-debuginfo-0.9.8e-12.el5_5.7.x86_64.rpm
openssl-devel-0.9.8e-12.el5_5.7.i386.rpm
openssl-devel-0.9.8e-12.el5_5.7.x86_64.rpm
openssl-perl-0.9.8e-12.el5_5.7.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/#package
Topic
Updated openssl packages that fix two security issues are now available forRed Hat Enterprise Linux 5.The Red Hat Security Response Team has rated this update as having moderatesecurity impact. Common Vulnerability Scoring System (CVSS) base scores,which give detailed severity ratings, are available for each vulnerabilityfrom the CVE links in the References section.
Topic
Relevant Releases Architectures
RHEL Desktop Workstation (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64
Bugs Fixed
659462 - CVE-2010-4180 openssl: NETSCAPE_REUSE_CIPHER_CHANGE_BUG ciphersuite downgrade attack
660650 - CVE-2008-7270 openssl: NETSCAPE_REUSE_CIPHER_CHANGE_BUG downgrade-to-disabled ciphersuite attack