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AUSCERT External Security Bulletin Redistribution
ESB-2015.0800
Moderate: openssl security update
31 March 2015
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: openssl
Publisher: Red Hat
Operating System: Red Hat
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2015-0293 CVE-2015-0292 CVE-2015-0289
CVE-2015-0288 CVE-2015-0287 CVE-2015-0286
CVE-2015-0209
Reference: ESB-2015.0711
ESB-2015.0687.2
ESB-2015.0685
ESB-2015.0680.2
ESB-2015.0678
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Red Hat Security Advisory
Synopsis: Moderate: openssl security update
Advisory ID: RHSA-2015:0752-01
Product: Red Hat Storage
Advisory URL: https://rhn.redhat.com/errata/RHSA-2015-0752.html
Issue date: 2015-03-30
CVE Names: CVE-2015-0209 CVE-2015-0286 CVE-2015-0287
CVE-2015-0288 CVE-2015-0289 CVE-2015-0292
CVE-2015-0293
=====================================================================
1. Summary:
Updated openssl packages that fix multiple security issues are now
available for Red Hat Storage 2.1.
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 Storage Server 2.1 - x86_64
3. Description:
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 invalid pointer use flaw was found in OpenSSL's ASN1_TYPE_cmp()
function. A remote attacker could crash a TLS/SSL client or server using
OpenSSL via a specially crafted X.509 certificate when the
attacker-supplied certificate was verified by the application.
(CVE-2015-0286)
An integer underflow flaw, leading to a buffer overflow, was found in the
way OpenSSL decoded malformed Base64-encoded inputs. An attacker able to
make an application using OpenSSL decode a specially crafted Base64-encoded
input (such as a PEM file) could use this flaw to cause the application to
crash. Note: this flaw is not exploitable via the TLS/SSL protocol because
the data being transferred is not Base64-encoded. (CVE-2015-0292)
A denial of service flaw was found in the way OpenSSL handled SSLv2
handshake messages. A remote attacker could use this flaw to cause a
TLS/SSL server using OpenSSL to exit on a failed assertion if it had both
the SSLv2 protocol and EXPORT-grade cipher suites enabled. (CVE-2015-0293)
A use-after-free flaw was found in the way OpenSSL imported malformed
Elliptic Curve private keys. A specially crafted key file could cause an
application using OpenSSL to crash when imported. (CVE-2015-0209)
An out-of-bounds write flaw was found in the way OpenSSL reused certain
ASN.1 structures. A remote attacker could possibly use a specially crafted
ASN.1 structure that, when parsed by an application, would cause that
application to crash. (CVE-2015-0287)
A NULL pointer dereference flaw was found in OpenSSL's X.509 certificate
handling implementation. A specially crafted X.509 certificate could cause
an application using OpenSSL to crash if the application attempted to
convert the certificate to a certificate request. (CVE-2015-0288)
A NULL pointer dereference was found in the way OpenSSL handled certain
PKCS#7 inputs. An attacker able to make an application using OpenSSL
verify, decrypt, or parse a specially crafted PKCS#7 input could cause that
application to crash. TLS/SSL clients and servers using OpenSSL were not
affected by this flaw. (CVE-2015-0289)
Red Hat would like to thank the OpenSSL project for reporting
CVE-2015-0286, CVE-2015-0287, CVE-2015-0288, CVE-2015-0289, CVE-2015-0292,
and CVE-2015-0293. Upstream acknowledges Stephen Henson of the OpenSSL
development team as the original reporter of CVE-2015-0286, Emilia Käsper
of the OpenSSL development team as the original reporter of CVE-2015-0287,
Brian Carpenter as the original reporter of CVE-2015-0288, Michal Zalewski
of Google as the original reporter of CVE-2015-0289, Robert Dugal and David
Ramos as the original reporters of CVE-2015-0292, and Sean Burford of
Google and Emilia Käsper of the OpenSSL development team as the original
reporters of CVE-2015-0293.
All openssl users are advised to upgrade to these updated packages, which
contain backported patches to correct these issues. For the update to take
effect, all services linked to the OpenSSL library 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.
For details on how to apply this update, refer to:
https://access.redhat.com/articles/11258
5. Bugs fixed (https://bugzilla.redhat.com/):
1196737 - CVE-2015-0209 openssl: use-after-free on invalid EC private key import
1202366 - CVE-2015-0286 openssl: invalid pointer use in ASN1_TYPE_cmp()
1202380 - CVE-2015-0287 openssl: ASN.1 structure reuse memory corruption
1202384 - CVE-2015-0289 openssl: PKCS7 NULL pointer dereference
1202395 - CVE-2015-0292 openssl: integer underflow leading to buffer overflow in base64 decoding
1202404 - CVE-2015-0293 openssl: assertion failure in SSLv2 servers
1202418 - CVE-2015-0288 openssl: X509_to_X509_REQ NULL pointer dereference
6. Package List:
Red Hat Storage Server 2.1:
Source:
openssl-1.0.1e-30.el6_6.7.src.rpm
x86_64:
openssl-1.0.1e-30.el6_6.7.x86_64.rpm
openssl-debuginfo-1.0.1e-30.el6_6.7.x86_64.rpm
openssl-devel-1.0.1e-30.el6_6.7.x86_64.rpm
openssl-perl-1.0.1e-30.el6_6.7.x86_64.rpm
openssl-static-1.0.1e-30.el6_6.7.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/
7. References:
https://access.redhat.com/security/cve/CVE-2015-0209
https://access.redhat.com/security/cve/CVE-2015-0286
https://access.redhat.com/security/cve/CVE-2015-0287
https://access.redhat.com/security/cve/CVE-2015-0288
https://access.redhat.com/security/cve/CVE-2015-0289
https://access.redhat.com/security/cve/CVE-2015-0292
https://access.redhat.com/security/cve/CVE-2015-0293
https://access.redhat.com/security/updates/classification/#moderate
https://www.openssl.org/news/secadv_20150319.txt
https://access.redhat.com/articles/1384453
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2015 Red Hat, Inc.
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