Sigurnosni nedostaci programskog paketa openssl

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by ncert - 22. siječnja 2015.22. siječnja 2015.0

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=====================================================================
Red Hat Security Advisory

Synopsis: Moderate: openssl security update
Advisory ID: RHSA-2015:0066-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2015-0066.html
Issue date: 2015-01-20
Updated on: 2015-01-21
CVE Names: CVE-2014-3570 CVE-2014-3571 CVE-2014-3572
CVE-2014-8275 CVE-2015-0204 CVE-2015-0205
CVE-2015-0206
=====================================================================

1. Summary:

Updated openssl packages that fix multiple security issues are now
available for Red Hat Enterprise Linux 6 and 7.

Red Hat Product Security has rated this update as having Moderate security
impact. Common Vulnerability Scoring System (CVSS) base scores, which give
detailed severity ratings, are available for each vulnerability from the
CVE links in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Client (v. 7) – x86_64
Red Hat Enterprise Linux Client Optional (v. 7) – x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) – x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) – x86_64
Red Hat Enterprise Linux Desktop (v. 6) – i386, x86_64
Red Hat Enterprise Linux Desktop Optional (v. 6) – i386, x86_64
Red Hat Enterprise Linux HPC Node (v. 6) – x86_64
Red Hat Enterprise Linux HPC Node Optional (v. 6) – x86_64
Red Hat Enterprise Linux Server (v. 6) – i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server (v. 7) – ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 6) – i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) – ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) – i386, x86_64
Red Hat Enterprise Linux Workstation (v. 7) – x86_64
Red Hat Enterprise Linux Workstation Optional (v. 6) – i386, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) – x86_64

3. Description:

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

A NULL pointer dereference flaw was found in the DTLS implementation of
OpenSSL. A remote attacker could send a specially crafted DTLS message,
which would cause an OpenSSL server to crash. (CVE-2014-3571)

A memory leak flaw was found in the way the dtls1_buffer_record() function
of OpenSSL parsed certain DTLS messages. A remote attacker could send
multiple specially crafted DTLS messages to exhaust all available memory of
a DTLS server. (CVE-2015-0206)

It was found that OpenSSL’s BigNumber Squaring implementation could produce
incorrect results under certain special conditions. This flaw could
possibly affect certain OpenSSL library functionality, such as RSA
blinding. Note that this issue occurred rarely and with a low probability,
and there is currently no known way of exploiting it. (CVE-2014-3570)

It was discovered that OpenSSL would perform an ECDH key exchange with a
non-ephemeral key even when the ephemeral ECDH cipher suite was selected.
A malicious server could make a TLS/SSL client using OpenSSL use a weaker
key exchange method than the one requested by the user. (CVE-2014-3572)

It was discovered that OpenSSL would accept ephemeral RSA keys when using
non-export RSA cipher suites. A malicious server could make a TLS/SSL
client using OpenSSL use a weaker key exchange method. (CVE-2015-0204)

Multiple flaws were found in the way OpenSSL parsed X.509 certificates.
An attacker could use these flaws to modify an X.509 certificate to produce
a certificate with a different fingerprint without invalidating its
signature, and possibly bypass fingerprint-based blacklisting in
applications. (CVE-2014-8275)

It was found that an OpenSSL server would, under certain conditions, accept
Diffie-Hellman client certificates without the use of a private key.
An attacker could use a user’s client certificate to authenticate as that
user, without needing the private key. (CVE-2015-0205)

All OpenSSL users are advised to upgrade to these updated packages, which
contain a backported patch to mitigate the above issues. For the update to
take effect, all services linked to the OpenSSL library (such as httpd and
other SSL-enabled services) must be restarted or the system rebooted.

4. 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
https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1180184 – CVE-2015-0204 openssl: Only allow ephemeral RSA keys in export ciphersuites
1180185 – CVE-2014-3572 openssl: ECDH downgrade bug fix
1180187 – CVE-2014-8275 openssl: Fix various certificate fingerprint issues
1180234 – CVE-2014-3571 openssl: DTLS segmentation fault in dtls1_get_record
1180235 – CVE-2015-0206 openssl: DTLS memory leak in dtls1_buffer_record
1180239 – CVE-2015-0205 openssl: DH client certificates accepted without verification
1180240 – CVE-2014-3570 openssl: Bignum squaring may produce incorrect results

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:
openssl-1.0.1e-30.el6_6.5.src.rpm

i386:
openssl-1.0.1e-30.el6_6.5.i686.rpm
openssl-debuginfo-1.0.1e-30.el6_6.5.i686.rpm

x86_64:
openssl-1.0.1e-30.el6_6.5.i686.rpm
openssl-1.0.1e-30.el6_6.5.x86_64.rpm
openssl-debuginfo-1.0.1e-30.el6_6.5.i686.rpm
openssl-debuginfo-1.0.1e-30.el6_6.5.x86_64.rpm

Red Hat Enterprise Linux Desktop Optional (v. 6):

i386:
openssl-debuginfo-1.0.1e-30.el6_6.5.i686.rpm
openssl-devel-1.0.1e-30.el6_6.5.i686.rpm
openssl-perl-1.0.1e-30.el6_6.5.i686.rpm
openssl-static-1.0.1e-30.el6_6.5.i686.rpm

x86_64:
openssl-debuginfo-1.0.1e-30.el6_6.5.i686.rpm
openssl-debuginfo-1.0.1e-30.el6_6.5.x86_64.rpm
openssl-devel-1.0.1e-30.el6_6.5.i686.rpm
openssl-devel-1.0.1e-30.el6_6.5.x86_64.rpm
openssl-perl-1.0.1e-30.el6_6.5.x86_64.rpm
openssl-static-1.0.1e-30.el6_6.5.x86_64.rpm

Red Hat Enterprise Linux HPC Node (v. 6):

Source:
openssl-1.0.1e-30.el6_6.5.src.rpm

x86_64:
openssl-1.0.1e-30.el6_6.5.i686.rpm
openssl-1.0.1e-30.el6_6.5.x86_64.rpm
openssl-debuginfo-1.0.1e-30.el6_6.5.i686.rpm
openssl-debuginfo-1.0.1e-30.el6_6.5.x86_64.rpm

Red Hat Enterprise Linux HPC Node Optional (v. 6):

Red Hat Enterprise Linux Server (v. 6):

Source:
openssl-1.0.1e-30.el6_6.5.src.rpm

i386:
openssl-1.0.1e-30.el6_6.5.i686.rpm
openssl-debuginfo-1.0.1e-30.el6_6.5.i686.rpm
openssl-devel-1.0.1e-30.el6_6.5.i686.rpm

ppc64:
openssl-1.0.1e-30.el6_6.5.ppc.rpm
openssl-1.0.1e-30.el6_6.5.ppc64.rpm
openssl-debuginfo-1.0.1e-30.el6_6.5.ppc.rpm
openssl-debuginfo-1.0.1e-30.el6_6.5.ppc64.rpm
openssl-devel-1.0.1e-30.el6_6.5.ppc.rpm
openssl-devel-1.0.1e-30.el6_6.5.ppc64.rpm

s390x:
openssl-1.0.1e-30.el6_6.5.s390.rpm
openssl-1.0.1e-30.el6_6.5.s390x.rpm
openssl-debuginfo-1.0.1e-30.el6_6.5.s390.rpm
openssl-debuginfo-1.0.1e-30.el6_6.5.s390x.rpm
openssl-devel-1.0.1e-30.el6_6.5.s390.rpm
openssl-devel-1.0.1e-30.el6_6.5.s390x.rpm

x86_64:
openssl-1.0.1e-30.el6_6.5.i686.rpm
openssl-1.0.1e-30.el6_6.5.x86_64.rpm
openssl-debuginfo-1.0.1e-30.el6_6.5.i686.rpm
openssl-debuginfo-1.0.1e-30.el6_6.5.x86_64.rpm
openssl-devel-1.0.1e-30.el6_6.5.i686.rpm
openssl-devel-1.0.1e-30.el6_6.5.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 6):

i386:
openssl-debuginfo-1.0.1e-30.el6_6.5.i686.rpm
openssl-perl-1.0.1e-30.el6_6.5.i686.rpm
openssl-static-1.0.1e-30.el6_6.5.i686.rpm

ppc64:
openssl-debuginfo-1.0.1e-30.el6_6.5.ppc64.rpm
openssl-perl-1.0.1e-30.el6_6.5.ppc64.rpm
openssl-static-1.0.1e-30.el6_6.5.ppc64.rpm

s390x:
openssl-debuginfo-1.0.1e-30.el6_6.5.s390x.rpm
openssl-perl-1.0.1e-30.el6_6.5.s390x.rpm
openssl-static-1.0.1e-30.el6_6.5.s390x.rpm

x86_64:
openssl-debuginfo-1.0.1e-30.el6_6.5.x86_64.rpm
openssl-perl-1.0.1e-30.el6_6.5.x86_64.rpm
openssl-static-1.0.1e-30.el6_6.5.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
openssl-1.0.1e-30.el6_6.5.src.rpm

i386:
openssl-1.0.1e-30.el6_6.5.i686.rpm
openssl-debuginfo-1.0.1e-30.el6_6.5.i686.rpm
openssl-devel-1.0.1e-30.el6_6.5.i686.rpm

Red Hat Enterprise Linux Workstation Optional (v. 6):

i386:
openssl-debuginfo-1.0.1e-30.el6_6.5.i686.rpm
openssl-perl-1.0.1e-30.el6_6.5.i686.rpm
openssl-static-1.0.1e-30.el6_6.5.i686.rpm

x86_64:
openssl-debuginfo-1.0.1e-30.el6_6.5.x86_64.rpm
openssl-perl-1.0.1e-30.el6_6.5.x86_64.rpm
openssl-static-1.0.1e-30.el6_6.5.x86_64.rpm

Red Hat Enterprise Linux Client (v. 7):

Source:
openssl-1.0.1e-34.el7_0.7.src.rpm

x86_64:
openssl-1.0.1e-34.el7_0.7.x86_64.rpm
openssl-debuginfo-1.0.1e-34.el7_0.7.i686.rpm
openssl-debuginfo-1.0.1e-34.el7_0.7.x86_64.rpm
openssl-libs-1.0.1e-34.el7_0.7.i686.rpm
openssl-libs-1.0.1e-34.el7_0.7.x86_64.rpm

Red Hat Enterprise Linux Client Optional (v. 7):

x86_64:
openssl-debuginfo-1.0.1e-34.el7_0.7.i686.rpm
openssl-debuginfo-1.0.1e-34.el7_0.7.x86_64.rpm
openssl-devel-1.0.1e-34.el7_0.7.i686.rpm
openssl-devel-1.0.1e-34.el7_0.7.x86_64.rpm
openssl-perl-1.0.1e-34.el7_0.7.x86_64.rpm
openssl-static-1.0.1e-34.el7_0.7.i686.rpm
openssl-static-1.0.1e-34.el7_0.7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
openssl-1.0.1e-34.el7_0.7.src.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

Red Hat Enterprise Linux Server (v. 7):

Source:
openssl-1.0.1e-34.el7_0.7.src.rpm

ppc64:
openssl-1.0.1e-34.el7_0.7.ppc64.rpm
openssl-debuginfo-1.0.1e-34.el7_0.7.ppc.rpm
openssl-debuginfo-1.0.1e-34.el7_0.7.ppc64.rpm
openssl-devel-1.0.1e-34.el7_0.7.ppc.rpm
openssl-devel-1.0.1e-34.el7_0.7.ppc64.rpm
openssl-libs-1.0.1e-34.el7_0.7.ppc.rpm
openssl-libs-1.0.1e-34.el7_0.7.ppc64.rpm

s390x:
openssl-1.0.1e-34.el7_0.7.s390x.rpm
openssl-debuginfo-1.0.1e-34.el7_0.7.s390.rpm
openssl-debuginfo-1.0.1e-34.el7_0.7.s390x.rpm
openssl-devel-1.0.1e-34.el7_0.7.s390.rpm
openssl-devel-1.0.1e-34.el7_0.7.s390x.rpm
openssl-libs-1.0.1e-34.el7_0.7.s390.rpm
openssl-libs-1.0.1e-34.el7_0.7.s390x.rpm

x86_64:
openssl-1.0.1e-34.el7_0.7.x86_64.rpm
openssl-debuginfo-1.0.1e-34.el7_0.7.i686.rpm
openssl-debuginfo-1.0.1e-34.el7_0.7.x86_64.rpm
openssl-devel-1.0.1e-34.el7_0.7.i686.rpm
openssl-devel-1.0.1e-34.el7_0.7.x86_64.rpm
openssl-libs-1.0.1e-34.el7_0.7.i686.rpm
openssl-libs-1.0.1e-34.el7_0.7.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 7):

ppc64:
openssl-debuginfo-1.0.1e-34.el7_0.7.ppc.rpm
openssl-debuginfo-1.0.1e-34.el7_0.7.ppc64.rpm
openssl-perl-1.0.1e-34.el7_0.7.ppc64.rpm
openssl-static-1.0.1e-34.el7_0.7.ppc.rpm
openssl-static-1.0.1e-34.el7_0.7.ppc64.rpm

s390x:
openssl-debuginfo-1.0.1e-34.el7_0.7.s390.rpm
openssl-debuginfo-1.0.1e-34.el7_0.7.s390x.rpm
openssl-perl-1.0.1e-34.el7_0.7.s390x.rpm
openssl-static-1.0.1e-34.el7_0.7.s390.rpm
openssl-static-1.0.1e-34.el7_0.7.s390x.rpm

x86_64:
openssl-debuginfo-1.0.1e-34.el7_0.7.i686.rpm
openssl-debuginfo-1.0.1e-34.el7_0.7.x86_64.rpm
openssl-perl-1.0.1e-34.el7_0.7.x86_64.rpm
openssl-static-1.0.1e-34.el7_0.7.i686.rpm
openssl-static-1.0.1e-34.el7_0.7.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
openssl-1.0.1e-34.el7_0.7.src.rpm

Red Hat Enterprise Linux Workstation Optional (v. 7):

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/

7. References:

https://access.redhat.com/security/cve/CVE-2014-3570
https://access.redhat.com/security/cve/CVE-2014-3571
https://access.redhat.com/security/cve/CVE-2014-3572
https://access.redhat.com/security/cve/CVE-2014-8275
https://access.redhat.com/security/cve/CVE-2015-0204
https://access.redhat.com/security/cve/CVE-2015-0205
https://access.redhat.com/security/cve/CVE-2015-0206
https://access.redhat.com/security/updates/classification/#moderate
https://www.openssl.org/news/secadv_20150108.txt

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

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