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Category:   Application (Security)  >   Network Security Services (NSS) Vendors:   Mozilla.org
(Red Hat Issues Fix for Network Security Services (NSS)) Mozilla Firefox Multiple Bugs Let Remote Users Bypass Security Restrictions, Spoof URLs, Obtain Potentially Sensitive Information, Deny Service, and Execute Arbitrary Code
SecurityTracker Alert ID:  1038323
SecurityTracker URL:  http://securitytracker.com/id/1038323
CVE Reference:   CVE-2017-5461   (Links to External Site)
Date:  Apr 20 2017
Impact:   Disclosure of authentication information, Disclosure of system information, Disclosure of user information, Execution of arbitrary code via network, Modification of system information, Modification of user information, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   Multiple vulnerabilities were reported in Mozilla Firefox. A remote user can cause arbitrary code to be executed on the target user's system. A remote user can obtain files on the target system. A remote user can spoof URLs. A remote user can conduct cross-site scripting attacks. Network Security Services (NSS) is affected.

A remote user can create specially crafted content that, when loaded by the target user, will execute arbitrary code on the target user's system.

A use-after-free memory error may occur in SMIL animation [CVE-2017-5433].

A use-after-free memory error may occur in transaction processing in the editor during design mode interactions [CVE-2017-5435].

An out-of-bounds memory write error may occur in the Graphite 2 library [CVE-2017-5436].

An out-of-bounds memory write error may occur in Base64 encoding in NSS [CVE-2017-5461].

A buffer overflow may occur in WebGL [CVE-2017-5459].

A use-after-free memory error may occur when redirecting focus handling [CVE-2017-5434].

A use-after-free memory error may occur during certain text input selection [CVE-2017-5432].

A use-after-free memory error may occur in frame selection [CVE-2017-5460].

A use-after-free memory error may occur in nsAutoPtr during XSLT processing [CVE-2017-5438].

A use-after-free memory error may occur in nsTArray Length() during XSLT processingn [CVE-2017-5439].

A use-after-free memory error may occur in txExecutionState destructor during XSLT processing [CVE-2017-5440].

A use-after-free memory error may occur with selection during scroll events [CVE-2017-5441].

A use-after-free memory error may occur in during style changes when manipulating DOM elements [CVE-2017-5442].

A memory corruption error may occur with accessibility and DOM manipulation [CVE-2017-5464].

An out-of-bounds memory write error may occur during BinHex decoding [CVE-2017-5443].

A buffer overflow may occur when parsing application/http-index-format content [CVE-2017-5444].

An out-of-bounds memory read error may occur in processing HTTP/2 DATA frames [CVE-2017-5446].

An out-of-bounds memory read error may occur in glyph processing [CVE-2017-5447].

An out-of-bounds memory read error may occur in ConvolvePixel [CVE-2017-5465].

An out-of-bounds memory write error may occur in ClearKeyDecryptor [CVE-2017-5448].

A remote user can escape the sandbox and read files on the target system via file picker [CVE-2017-5454].

A remote user can escape the sandbox via internal feed reader APIs and gain elevated privileges [CVE-2017-5455].

A remote user can escape the sandbox and read files on the target system via an IPC message [CVE-2017-5456].

A buffer overflow may occur in flex-generated code [CVE-2017-5469].

A remote user can read uninitialized values when parsing application/http-index-format content [CVE-2017-5445].

A crash during bidirectional unicode manipulation with CSS animations may allow code execution [CVE-2017-5449].

A memory corruption error may occur when drawing Skia content [CVE-2017-5467].

Other memory corruption errors may occur [CVE-2017-5429, CVE-2017-5430].

Some errors may occur in Libevent [CVE-2016-10195, CVE-2016-10196, CVE-2016-10197].

A remote user can inject static HTML into the RSS reader preview page [CVE-2017-5453].

A remote user can conduct cross-site scripting attacks when a user drags and drops a 'javascript:' URL into the addressbar [CVE-2017-5458].

An origin confusion error may occur when reloading isolated data:text/html URLs, allowing cross-site scripting attacks [CVE-2017-5466].

An incorrect ownership model of privateBrowsing information may occur via developer tools during debugging [CVE-2017-5468].

A remote user can spoof the address bar via Android intents [CVE-2017-5463]. Firefox for Android is affected.

A remote user can spoof the address bar during scrolling with editable content [CVE-2017-5452]. Firefox for Android is affected.

A remote user can spoof the address bar using javascript: URIs [CVE-2017-5450].

A remote user can spoof the address bar using the onblur event [CVE-2017-5451].

The Network Security Services (NSS) library may not properly generate Deterministic Random Bit Generator (DRBG) numbers [CVE-2017-5462].

Anonymous, Anonymous (via Trend Micro's Zero Day Initiative), Atte Kettunen, Bob Clary, Chamal De Silva, Chris Peterson, Christian Holler, Chun Han Hsiao, Daniel Veditz, David Baron, Haik Aftandilian, Haosheng Wang, Heather Miller of Google Skia team, Holger Fuhrmannek, Huzaifa Sidhpurwala, Ivan Fratric of Google Project Zero, Jon Coppeard,
Jordi Chancel, Jose Maria Acuna, Julian Hector, Kan-Ru Chen, Marcia Knous, Mats Palmgren, Milan Sreckovic, Muneaki Nishimura, Nicolas Gregoire, Nils, Paul Theriault, Petr Cerny, Philipp, Randell Jesup, Ronald Crane, Takeshi Terada, Tooru Fujisawa, Tyson Smith, Vladimir Klebanov, and Franziskus Kiefer reported these vulnerabilities.

Impact:   A remote user can create content that, when loaded by the target user, will execute arbitrary code on the target user's system.

A remote user can obtain files on the target system.

A remote user can spoof a URL.

A remote user can access the target user's cookies (including authentication cookies), if any, associated with an arbitrary site, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.

Solution:   Red Hat has issued a fix for CVE-2017-5461 for Network Security Services (NSS).

The Red Hat advisory is available at:

https://access.redhat.com/errata/RHSA-2017:1103

Vendor URL:  access.redhat.com/errata/RHSA-2017:1103 (Links to External Site)
Cause:   Access control error, Boundary error, Input validation error, Randomization error, State error
Underlying OS:  Linux (Red Hat Enterprise)
Underlying OS Comments:  5.9

Message History:   This archive entry is a follow-up to the message listed below.
Apr 20 2017 Mozilla Firefox Multiple Bugs Let Remote Users Bypass Security Restrictions, Spoof URLs, Obtain Potentially Sensitive Information, Deny Service, and Execute Arbitrary Code



 Source Message Contents

Date:  Thu, 20 Apr 2017 05:18:23 +0000
Subject:  [RHSA-2017:1103-01] Critical: nss security update

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

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

Synopsis:          Critical: nss security update
Advisory ID:       RHSA-2017:1103-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2017:1103
Issue date:        2017-04-20
CVE Names:         CVE-2017-5461 
=====================================================================

1. Summary:

An update for nss is now available for Red Hat Enterprise Linux 5.9 Long
Life.

Red Hat Product Security has rated this update as having a security impact
of Critical. 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 Long Life (v. 5.9 server) - i386, ia64, x86_64

3. Description:

Network Security Services (NSS) is a set of libraries designed to support
the cross-platform development of security-enabled client and server
applications.

Security Fix(es):

* An out-of-bounds write flaw was found in the way NSS performed certain
Base64-decoding operations. An attacker could use this flaw to create a
specially crafted certificate which, when parsed by NSS, could cause it to
crash or execute arbitrary code, using the permissions of the user running
an application compiled against the NSS library. (CVE-2017-5461)

Red Hat would like to thank the Mozilla project for reporting this issue.
Upstream acknowledges Ronald Crane as the original reporter.

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

After installing this update, applications using NSS (for example, Firefox)
must be restarted for this update to take effect.

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

1440080 - CVE-2017-5461 nss: Write beyond bounds caused by bugs in Base64 de/encoding in nssb64d.c and nssb64e.c (MFSA 2017-10)

6. Package List:

Red Hat Enterprise Linux Long Life (v. 5.9 server):

Source:
nss-3.14.3-11.el5_9.src.rpm

i386:
nss-3.14.3-11.el5_9.i386.rpm
nss-debuginfo-3.14.3-11.el5_9.i386.rpm
nss-devel-3.14.3-11.el5_9.i386.rpm
nss-pkcs11-devel-3.14.3-11.el5_9.i386.rpm
nss-tools-3.14.3-11.el5_9.i386.rpm

ia64:
nss-3.14.3-11.el5_9.i386.rpm
nss-3.14.3-11.el5_9.ia64.rpm
nss-debuginfo-3.14.3-11.el5_9.i386.rpm
nss-debuginfo-3.14.3-11.el5_9.ia64.rpm
nss-devel-3.14.3-11.el5_9.ia64.rpm
nss-pkcs11-devel-3.14.3-11.el5_9.ia64.rpm
nss-tools-3.14.3-11.el5_9.ia64.rpm

x86_64:
nss-3.14.3-11.el5_9.i386.rpm
nss-3.14.3-11.el5_9.x86_64.rpm
nss-debuginfo-3.14.3-11.el5_9.i386.rpm
nss-debuginfo-3.14.3-11.el5_9.x86_64.rpm
nss-devel-3.14.3-11.el5_9.i386.rpm
nss-devel-3.14.3-11.el5_9.x86_64.rpm
nss-pkcs11-devel-3.14.3-11.el5_9.i386.rpm
nss-pkcs11-devel-3.14.3-11.el5_9.x86_64.rpm
nss-tools-3.14.3-11.el5_9.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-2017-5461
https://access.redhat.com/security/updates/classification/#critical

8. Contact:

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

Copyright 2017 Red Hat, Inc.
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