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Category:   Application (VPN)  >   OpenSSL Vendors:   OpenSSL.org
(Red Hat Issues Fix) OpenSSLX.509 IPAddressFamily Buffer Overread Lets Remote Users Cause Certificate Text to Be Displayed Incorrectly
SecurityTracker Alert ID:  1041994
SecurityTracker URL:  http://securitytracker.com/id/1041994
CVE Reference:   CVE-2017-3735   (Links to External Site)
Date:  Oct 30 2018
Impact:   Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in OpenSSL. A remote user can cause the certificate text to be displayed incorrectly.

A remote user can create an X.509 certificate with a specially crafted IPAddressFamily extension data that, when displayed by the target user, will trigger a one byte overread and cause the certificate text to be displayed incorrectly.

The Google OSS-Fuzz project reported this vulnerability.

Impact:   A remote user can cause the certificate text to be displayed incorrectly.
Solution:   Red Hat has issued a fix.

The Red Hat advisory is available at:

https://access.redhat.com/errata/RHSA-2018:3221

Vendor URL:  access.redhat.com/errata/RHSA-2018:3221 (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Red Hat Enterprise)
Underlying OS Comments:  7

Message History:   This archive entry is a follow-up to the message listed below.
Nov 2 2017 OpenSSLX.509 IPAddressFamily Buffer Overread Lets Remote Users Cause Certificate Text to Be Displayed Incorrectly



 Source Message Contents

Subject:  [RHSA-2018:3221-01] Moderate: openssl security, bug fix, and enhancement update

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

Synopsis:          Moderate: openssl security, bug fix, and enhancement update
Advisory ID:       RHSA-2018:3221-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2018:3221
Issue date:        2018-10-30
CVE Names:         CVE-2017-3735 CVE-2018-0495 CVE-2018-0732 
                   CVE-2018-0737 CVE-2018-0739 
=====================================================================

1. Summary:

An update for openssl is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact
of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) 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 Server (v. 7) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) - aarch64, ppc64le, s390x
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - aarch64, ppc64le, s390x

3. Description:

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

Security Fix(es):

* openssl: ROHNP - Key Extraction Side Channel in Multiple Crypto Libraries
(CVE-2018-0495)

* openssl: Malicious server can send large prime to client during DH(E) TLS
handshake causing the client to hang (CVE-2018-0732)

* openssl: Handling of crafted recursive ASN.1 structures can cause a stack
overflow and resulting denial of service (CVE-2018-0739)

* openssl: Malformed X.509 IPAdressFamily could cause OOB read
(CVE-2017-3735)

* openssl: RSA key generation cache timing vulnerability in
crypto/rsa/rsa_gen.c allows attackers to recover private keys
(CVE-2018-0737)

For more details about the security issue(s), including the impact, a CVSS
score, and other related information, refer to the CVE page(s) listed in
the References section.

Additional Changes:

For detailed information on changes in this release, see the Red Hat
Enterprise Linux 7.6 Release Notes linked from the References section.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

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

For the update to take effect, all services linked to the OpenSSL library
must be restarted, or the system rebooted.

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

1486144 - CVE-2017-3735 openssl: Malformed X.509 IPAdressFamily could cause OOB read
1548401 - modify X509_NAME comparison function to be case sensitive for CA name lists in SSL
1561266 - CVE-2018-0739 openssl: Handling of crafted recursive ASN.1 structures can cause a stack overflow and resulting denial of service
1568253 - CVE-2018-0737 openssl: RSA key generation cache timing vulnerability in crypto/rsa/rsa_gen.c allows attackers to recover private keys
1585004 - ppc64le opensslconf.h is incompatible with swig
1591100 - CVE-2018-0732 openssl: Malicious server can send large prime to client during DH(E) TLS handshake causing the client to hang
1591163 - CVE-2018-0495 openssl: ROHNP - Key Extraction Side Channel in Multiple Crypto Libraries
1603597 - Confusing error message when asking for invalid DSA parameter sizes in FIPS mode

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
openssl-1.0.2k-16.el7.src.rpm

x86_64:
openssl-1.0.2k-16.el7.x86_64.rpm
openssl-debuginfo-1.0.2k-16.el7.i686.rpm
openssl-debuginfo-1.0.2k-16.el7.x86_64.rpm
openssl-libs-1.0.2k-16.el7.i686.rpm
openssl-libs-1.0.2k-16.el7.x86_64.rpm

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

x86_64:
openssl-debuginfo-1.0.2k-16.el7.i686.rpm
openssl-debuginfo-1.0.2k-16.el7.x86_64.rpm
openssl-devel-1.0.2k-16.el7.i686.rpm
openssl-devel-1.0.2k-16.el7.x86_64.rpm
openssl-perl-1.0.2k-16.el7.x86_64.rpm
openssl-static-1.0.2k-16.el7.i686.rpm
openssl-static-1.0.2k-16.el7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
openssl-1.0.2k-16.el7.src.rpm

x86_64:
openssl-1.0.2k-16.el7.x86_64.rpm
openssl-debuginfo-1.0.2k-16.el7.i686.rpm
openssl-debuginfo-1.0.2k-16.el7.x86_64.rpm
openssl-libs-1.0.2k-16.el7.i686.rpm
openssl-libs-1.0.2k-16.el7.x86_64.rpm

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

x86_64:
openssl-debuginfo-1.0.2k-16.el7.i686.rpm
openssl-debuginfo-1.0.2k-16.el7.x86_64.rpm
openssl-devel-1.0.2k-16.el7.i686.rpm
openssl-devel-1.0.2k-16.el7.x86_64.rpm
openssl-perl-1.0.2k-16.el7.x86_64.rpm
openssl-static-1.0.2k-16.el7.i686.rpm
openssl-static-1.0.2k-16.el7.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
openssl-1.0.2k-16.el7.src.rpm

ppc64:
openssl-1.0.2k-16.el7.ppc64.rpm
openssl-debuginfo-1.0.2k-16.el7.ppc.rpm
openssl-debuginfo-1.0.2k-16.el7.ppc64.rpm
openssl-devel-1.0.2k-16.el7.ppc.rpm
openssl-devel-1.0.2k-16.el7.ppc64.rpm
openssl-libs-1.0.2k-16.el7.ppc.rpm
openssl-libs-1.0.2k-16.el7.ppc64.rpm

ppc64le:
openssl-1.0.2k-16.el7.ppc64le.rpm
openssl-debuginfo-1.0.2k-16.el7.ppc64le.rpm
openssl-devel-1.0.2k-16.el7.ppc64le.rpm
openssl-libs-1.0.2k-16.el7.ppc64le.rpm

s390x:
openssl-1.0.2k-16.el7.s390x.rpm
openssl-debuginfo-1.0.2k-16.el7.s390.rpm
openssl-debuginfo-1.0.2k-16.el7.s390x.rpm
openssl-devel-1.0.2k-16.el7.s390.rpm
openssl-devel-1.0.2k-16.el7.s390x.rpm
openssl-libs-1.0.2k-16.el7.s390.rpm
openssl-libs-1.0.2k-16.el7.s390x.rpm

x86_64:
openssl-1.0.2k-16.el7.x86_64.rpm
openssl-debuginfo-1.0.2k-16.el7.i686.rpm
openssl-debuginfo-1.0.2k-16.el7.x86_64.rpm
openssl-devel-1.0.2k-16.el7.i686.rpm
openssl-devel-1.0.2k-16.el7.x86_64.rpm
openssl-libs-1.0.2k-16.el7.i686.rpm
openssl-libs-1.0.2k-16.el7.x86_64.rpm

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7):

Source:
openssl-1.0.2k-16.el7.src.rpm

aarch64:
openssl-1.0.2k-16.el7.aarch64.rpm
openssl-debuginfo-1.0.2k-16.el7.aarch64.rpm
openssl-devel-1.0.2k-16.el7.aarch64.rpm
openssl-libs-1.0.2k-16.el7.aarch64.rpm

ppc64le:
openssl-1.0.2k-16.el7.ppc64le.rpm
openssl-debuginfo-1.0.2k-16.el7.ppc64le.rpm
openssl-devel-1.0.2k-16.el7.ppc64le.rpm
openssl-libs-1.0.2k-16.el7.ppc64le.rpm

s390x:
openssl-1.0.2k-16.el7.s390x.rpm
openssl-debuginfo-1.0.2k-16.el7.s390.rpm
openssl-debuginfo-1.0.2k-16.el7.s390x.rpm
openssl-devel-1.0.2k-16.el7.s390.rpm
openssl-devel-1.0.2k-16.el7.s390x.rpm
openssl-libs-1.0.2k-16.el7.s390.rpm
openssl-libs-1.0.2k-16.el7.s390x.rpm

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7):

aarch64:
openssl-debuginfo-1.0.2k-16.el7.aarch64.rpm
openssl-perl-1.0.2k-16.el7.aarch64.rpm
openssl-static-1.0.2k-16.el7.aarch64.rpm

ppc64le:
openssl-debuginfo-1.0.2k-16.el7.ppc64le.rpm
openssl-perl-1.0.2k-16.el7.ppc64le.rpm
openssl-static-1.0.2k-16.el7.ppc64le.rpm

s390x:
openssl-debuginfo-1.0.2k-16.el7.s390.rpm
openssl-debuginfo-1.0.2k-16.el7.s390x.rpm
openssl-perl-1.0.2k-16.el7.s390x.rpm
openssl-static-1.0.2k-16.el7.s390.rpm
openssl-static-1.0.2k-16.el7.s390x.rpm

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

ppc64:
openssl-debuginfo-1.0.2k-16.el7.ppc.rpm
openssl-debuginfo-1.0.2k-16.el7.ppc64.rpm
openssl-perl-1.0.2k-16.el7.ppc64.rpm
openssl-static-1.0.2k-16.el7.ppc.rpm
openssl-static-1.0.2k-16.el7.ppc64.rpm

ppc64le:
openssl-debuginfo-1.0.2k-16.el7.ppc64le.rpm
openssl-perl-1.0.2k-16.el7.ppc64le.rpm
openssl-static-1.0.2k-16.el7.ppc64le.rpm

s390x:
openssl-debuginfo-1.0.2k-16.el7.s390.rpm
openssl-debuginfo-1.0.2k-16.el7.s390x.rpm
openssl-perl-1.0.2k-16.el7.s390x.rpm
openssl-static-1.0.2k-16.el7.s390.rpm
openssl-static-1.0.2k-16.el7.s390x.rpm

x86_64:
openssl-debuginfo-1.0.2k-16.el7.i686.rpm
openssl-debuginfo-1.0.2k-16.el7.x86_64.rpm
openssl-perl-1.0.2k-16.el7.x86_64.rpm
openssl-static-1.0.2k-16.el7.i686.rpm
openssl-static-1.0.2k-16.el7.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
openssl-1.0.2k-16.el7.src.rpm

x86_64:
openssl-1.0.2k-16.el7.x86_64.rpm
openssl-debuginfo-1.0.2k-16.el7.i686.rpm
openssl-debuginfo-1.0.2k-16.el7.x86_64.rpm
openssl-devel-1.0.2k-16.el7.i686.rpm
openssl-devel-1.0.2k-16.el7.x86_64.rpm
openssl-libs-1.0.2k-16.el7.i686.rpm
openssl-libs-1.0.2k-16.el7.x86_64.rpm

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

x86_64:
openssl-debuginfo-1.0.2k-16.el7.i686.rpm
openssl-debuginfo-1.0.2k-16.el7.x86_64.rpm
openssl-perl-1.0.2k-16.el7.x86_64.rpm
openssl-static-1.0.2k-16.el7.i686.rpm
openssl-static-1.0.2k-16.el7.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-2017-3735
https://access.redhat.com/security/cve/CVE-2018-0495
https://access.redhat.com/security/cve/CVE-2018-0732
https://access.redhat.com/security/cve/CVE-2018-0737
https://access.redhat.com/security/cve/CVE-2018-0739
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.6_release_notes/index

8. Contact:

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

Copyright 2018 Red Hat, Inc.
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