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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 Spoof URLs, Conduct Cross-Site Scripting Attacks, Obtain Potentially Sensitive Information, and Execute Arbitrary Code
SecurityTracker Alert ID:  1039468
SecurityTracker URL:  http://securitytracker.com/id/1039468
CVE Reference:   CVE-2017-7805   (Links to External Site)
Date:  Sep 29 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 potentially sensitive information 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 the Fetch API [CVE-2017-7793].

A use-after-free memory error may occur when manipulating arrays of Accessible Rich Internet Applications (ARIA) elements within containers via the DOM [CVE-2017-7818].

A use-after-free memory error may occur in design mode when image objects are resized [CVE-2017-7819].

A buffer overflow may occur when drawing and validating elements with the ANGLE graphics library [CVE-2017-7824].

A use-after-free memory error may occur during TLS 1.2 exchanges [CVE-2017-7805].

A remote user can create specially crafted content that, when dragged onto the browser tab bar, will open files stored on the target user's system [CVE-2017-7812].

Other memory corruption errors may occur [CVE-2017-7810, CVE-2017-7811].

A remote user can trigger an integer truncation flaw in the JavaScript parser to read data outside of the buffer [CVE-2017-7813].

The content security policy (CSP) sandbox directive may not create a unique origin for a document. A remote user can exploit this to conduct cross-scripting attacks [CVE-2017-7823].

A remote user can bypass phishing and malware protection warnings via 'blob:' and 'data:' URL elements [CVE-2017-7814].

A remote user can cause some Tibetan and Arabic characters in several fonts to be displayed as whitespace, which may allow domain spoofing attacks [CVE-2017-7825]. mac OS X systems are affected.

A remote user can invoke the 'data:' protocol within an iframe to spoof a modal dialog's origin [CVE-2017-7815]. Systems with e10 multiprocess disabled are affected.

A remote user can invoke WebExtensions to load an 'about:' privileged URL [CVE-2017-7816].

A remote user can invoke WebExtensions to download and attempt to open a file of some non-executable file types without user interaction [CVE-2017-7821].

The WebCrypto API AES-GCM implementation accepts 0-length IV. A remote user may be able to exploit this to determine the authentication key in certain cases [CVE-2017-7822].

A remote user may be able to bypass the Xray wrapper mechanism [CVE-2017-7820].

A remote user can spoof the address bar via fullscreen mode [CVE-2017-7817]. Firefox for Android is affected.


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 potentially sensitive information on the target system.

A remote user can spoof the address bar and other user interface components.

A remote user can conduct cross-site scripting attacks.

Solution:   Red Hat has issued a fix for CVE-2017-7805 for Network Security Services (NSS).

The Red Hat advisory is available at:

https://access.redhat.com/errata/RHSA-2017:2832

Vendor URL:  access.redhat.com/errata/RHSA-2017:2832 (Links to External Site)
Cause:   Access control error, Boundary error, Input validation error
Underlying OS:  Linux (Red Hat Enterprise)
Underlying OS Comments:  6, 7

Message History:   This archive entry is a follow-up to the message listed below.
Sep 29 2017 Mozilla Firefox Multiple Bugs Let Remote Users Spoof URLs, Conduct Cross-Site Scripting Attacks, Obtain Potentially Sensitive Information, and Execute Arbitrary Code



 Source Message Contents

Subject:  [RHSA-2017:2832-01] Important: nss security update

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

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

Synopsis:          Important: nss security update
Advisory ID:       RHSA-2017:2832-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2017:2832
Issue date:        2017-09-28
CVE Names:         CVE-2017-7805 
=====================================================================

1. Summary:

An update for nss is now available for Red Hat Enterprise Linux 6 and Red
Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact
of Important. 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 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) - aarch64, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - aarch64, ppc64, ppc64le, 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:

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):

* A use-after-free flaw was found in the TLS 1.2 implementation in the NSS
library when client authentication was used. A malicious client could use
this flaw to cause an application compiled against NSS to crash or,
potentially, execute arbitrary code with the permission of the user running
the application. (CVE-2017-7805)

Red Hat would like to thank the Mozilla project for reporting this issue.
Upstream acknowledges Martin Thomson 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/):

1471171 - CVE-2017-7805 nss: Potential use-after-free in TLS 1.2 server when verifying client authentication

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:
nss-3.28.4-4.el6_9.src.rpm

i386:
nss-3.28.4-4.el6_9.i686.rpm
nss-debuginfo-3.28.4-4.el6_9.i686.rpm
nss-sysinit-3.28.4-4.el6_9.i686.rpm
nss-tools-3.28.4-4.el6_9.i686.rpm

x86_64:
nss-3.28.4-4.el6_9.i686.rpm
nss-3.28.4-4.el6_9.x86_64.rpm
nss-debuginfo-3.28.4-4.el6_9.i686.rpm
nss-debuginfo-3.28.4-4.el6_9.x86_64.rpm
nss-sysinit-3.28.4-4.el6_9.x86_64.rpm
nss-tools-3.28.4-4.el6_9.x86_64.rpm

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

i386:
nss-debuginfo-3.28.4-4.el6_9.i686.rpm
nss-devel-3.28.4-4.el6_9.i686.rpm
nss-pkcs11-devel-3.28.4-4.el6_9.i686.rpm

x86_64:
nss-debuginfo-3.28.4-4.el6_9.i686.rpm
nss-debuginfo-3.28.4-4.el6_9.x86_64.rpm
nss-devel-3.28.4-4.el6_9.i686.rpm
nss-devel-3.28.4-4.el6_9.x86_64.rpm
nss-pkcs11-devel-3.28.4-4.el6_9.i686.rpm
nss-pkcs11-devel-3.28.4-4.el6_9.x86_64.rpm

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

Source:
nss-3.28.4-4.el6_9.src.rpm

x86_64:
nss-3.28.4-4.el6_9.i686.rpm
nss-3.28.4-4.el6_9.x86_64.rpm
nss-debuginfo-3.28.4-4.el6_9.i686.rpm
nss-debuginfo-3.28.4-4.el6_9.x86_64.rpm
nss-sysinit-3.28.4-4.el6_9.x86_64.rpm
nss-tools-3.28.4-4.el6_9.x86_64.rpm

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

x86_64:
nss-debuginfo-3.28.4-4.el6_9.i686.rpm
nss-debuginfo-3.28.4-4.el6_9.x86_64.rpm
nss-devel-3.28.4-4.el6_9.i686.rpm
nss-devel-3.28.4-4.el6_9.x86_64.rpm
nss-pkcs11-devel-3.28.4-4.el6_9.i686.rpm
nss-pkcs11-devel-3.28.4-4.el6_9.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
nss-3.28.4-4.el6_9.src.rpm

i386:
nss-3.28.4-4.el6_9.i686.rpm
nss-debuginfo-3.28.4-4.el6_9.i686.rpm
nss-devel-3.28.4-4.el6_9.i686.rpm
nss-sysinit-3.28.4-4.el6_9.i686.rpm
nss-tools-3.28.4-4.el6_9.i686.rpm

ppc64:
nss-3.28.4-4.el6_9.ppc.rpm
nss-3.28.4-4.el6_9.ppc64.rpm
nss-debuginfo-3.28.4-4.el6_9.ppc.rpm
nss-debuginfo-3.28.4-4.el6_9.ppc64.rpm
nss-devel-3.28.4-4.el6_9.ppc.rpm
nss-devel-3.28.4-4.el6_9.ppc64.rpm
nss-sysinit-3.28.4-4.el6_9.ppc64.rpm
nss-tools-3.28.4-4.el6_9.ppc64.rpm

s390x:
nss-3.28.4-4.el6_9.s390.rpm
nss-3.28.4-4.el6_9.s390x.rpm
nss-debuginfo-3.28.4-4.el6_9.s390.rpm
nss-debuginfo-3.28.4-4.el6_9.s390x.rpm
nss-devel-3.28.4-4.el6_9.s390.rpm
nss-devel-3.28.4-4.el6_9.s390x.rpm
nss-sysinit-3.28.4-4.el6_9.s390x.rpm
nss-tools-3.28.4-4.el6_9.s390x.rpm

x86_64:
nss-3.28.4-4.el6_9.i686.rpm
nss-3.28.4-4.el6_9.x86_64.rpm
nss-debuginfo-3.28.4-4.el6_9.i686.rpm
nss-debuginfo-3.28.4-4.el6_9.x86_64.rpm
nss-devel-3.28.4-4.el6_9.i686.rpm
nss-devel-3.28.4-4.el6_9.x86_64.rpm
nss-sysinit-3.28.4-4.el6_9.x86_64.rpm
nss-tools-3.28.4-4.el6_9.x86_64.rpm

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

i386:
nss-debuginfo-3.28.4-4.el6_9.i686.rpm
nss-pkcs11-devel-3.28.4-4.el6_9.i686.rpm

ppc64:
nss-debuginfo-3.28.4-4.el6_9.ppc.rpm
nss-debuginfo-3.28.4-4.el6_9.ppc64.rpm
nss-pkcs11-devel-3.28.4-4.el6_9.ppc.rpm
nss-pkcs11-devel-3.28.4-4.el6_9.ppc64.rpm

s390x:
nss-debuginfo-3.28.4-4.el6_9.s390.rpm
nss-debuginfo-3.28.4-4.el6_9.s390x.rpm
nss-pkcs11-devel-3.28.4-4.el6_9.s390.rpm
nss-pkcs11-devel-3.28.4-4.el6_9.s390x.rpm

x86_64:
nss-debuginfo-3.28.4-4.el6_9.i686.rpm
nss-debuginfo-3.28.4-4.el6_9.x86_64.rpm
nss-pkcs11-devel-3.28.4-4.el6_9.i686.rpm
nss-pkcs11-devel-3.28.4-4.el6_9.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
nss-3.28.4-4.el6_9.src.rpm

i386:
nss-3.28.4-4.el6_9.i686.rpm
nss-debuginfo-3.28.4-4.el6_9.i686.rpm
nss-devel-3.28.4-4.el6_9.i686.rpm
nss-sysinit-3.28.4-4.el6_9.i686.rpm
nss-tools-3.28.4-4.el6_9.i686.rpm

x86_64:
nss-3.28.4-4.el6_9.i686.rpm
nss-3.28.4-4.el6_9.x86_64.rpm
nss-debuginfo-3.28.4-4.el6_9.i686.rpm
nss-debuginfo-3.28.4-4.el6_9.x86_64.rpm
nss-devel-3.28.4-4.el6_9.i686.rpm
nss-devel-3.28.4-4.el6_9.x86_64.rpm
nss-sysinit-3.28.4-4.el6_9.x86_64.rpm
nss-tools-3.28.4-4.el6_9.x86_64.rpm

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

i386:
nss-debuginfo-3.28.4-4.el6_9.i686.rpm
nss-pkcs11-devel-3.28.4-4.el6_9.i686.rpm

x86_64:
nss-debuginfo-3.28.4-4.el6_9.i686.rpm
nss-debuginfo-3.28.4-4.el6_9.x86_64.rpm
nss-pkcs11-devel-3.28.4-4.el6_9.i686.rpm
nss-pkcs11-devel-3.28.4-4.el6_9.x86_64.rpm

Red Hat Enterprise Linux Client (v. 7):

Source:
nss-3.28.4-12.el7_4.src.rpm

x86_64:
nss-3.28.4-12.el7_4.i686.rpm
nss-3.28.4-12.el7_4.x86_64.rpm
nss-debuginfo-3.28.4-12.el7_4.i686.rpm
nss-debuginfo-3.28.4-12.el7_4.x86_64.rpm
nss-sysinit-3.28.4-12.el7_4.x86_64.rpm
nss-tools-3.28.4-12.el7_4.x86_64.rpm

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

x86_64:
nss-debuginfo-3.28.4-12.el7_4.i686.rpm
nss-debuginfo-3.28.4-12.el7_4.x86_64.rpm
nss-devel-3.28.4-12.el7_4.i686.rpm
nss-devel-3.28.4-12.el7_4.x86_64.rpm
nss-pkcs11-devel-3.28.4-12.el7_4.i686.rpm
nss-pkcs11-devel-3.28.4-12.el7_4.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
nss-3.28.4-12.el7_4.src.rpm

x86_64:
nss-3.28.4-12.el7_4.i686.rpm
nss-3.28.4-12.el7_4.x86_64.rpm
nss-debuginfo-3.28.4-12.el7_4.i686.rpm
nss-debuginfo-3.28.4-12.el7_4.x86_64.rpm
nss-sysinit-3.28.4-12.el7_4.x86_64.rpm
nss-tools-3.28.4-12.el7_4.x86_64.rpm

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

x86_64:
nss-debuginfo-3.28.4-12.el7_4.i686.rpm
nss-debuginfo-3.28.4-12.el7_4.x86_64.rpm
nss-devel-3.28.4-12.el7_4.i686.rpm
nss-devel-3.28.4-12.el7_4.x86_64.rpm
nss-pkcs11-devel-3.28.4-12.el7_4.i686.rpm
nss-pkcs11-devel-3.28.4-12.el7_4.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
nss-3.28.4-12.el7_4.src.rpm

aarch64:
nss-3.28.4-12.el7_4.aarch64.rpm
nss-debuginfo-3.28.4-12.el7_4.aarch64.rpm
nss-devel-3.28.4-12.el7_4.aarch64.rpm
nss-sysinit-3.28.4-12.el7_4.aarch64.rpm
nss-tools-3.28.4-12.el7_4.aarch64.rpm

ppc64:
nss-3.28.4-12.el7_4.ppc.rpm
nss-3.28.4-12.el7_4.ppc64.rpm
nss-debuginfo-3.28.4-12.el7_4.ppc.rpm
nss-debuginfo-3.28.4-12.el7_4.ppc64.rpm
nss-devel-3.28.4-12.el7_4.ppc.rpm
nss-devel-3.28.4-12.el7_4.ppc64.rpm
nss-sysinit-3.28.4-12.el7_4.ppc64.rpm
nss-tools-3.28.4-12.el7_4.ppc64.rpm

ppc64le:
nss-3.28.4-12.el7_4.ppc64le.rpm
nss-debuginfo-3.28.4-12.el7_4.ppc64le.rpm
nss-devel-3.28.4-12.el7_4.ppc64le.rpm
nss-sysinit-3.28.4-12.el7_4.ppc64le.rpm
nss-tools-3.28.4-12.el7_4.ppc64le.rpm

s390x:
nss-3.28.4-12.el7_4.s390.rpm
nss-3.28.4-12.el7_4.s390x.rpm
nss-debuginfo-3.28.4-12.el7_4.s390.rpm
nss-debuginfo-3.28.4-12.el7_4.s390x.rpm
nss-devel-3.28.4-12.el7_4.s390.rpm
nss-devel-3.28.4-12.el7_4.s390x.rpm
nss-sysinit-3.28.4-12.el7_4.s390x.rpm
nss-tools-3.28.4-12.el7_4.s390x.rpm

x86_64:
nss-3.28.4-12.el7_4.i686.rpm
nss-3.28.4-12.el7_4.x86_64.rpm
nss-debuginfo-3.28.4-12.el7_4.i686.rpm
nss-debuginfo-3.28.4-12.el7_4.x86_64.rpm
nss-devel-3.28.4-12.el7_4.i686.rpm
nss-devel-3.28.4-12.el7_4.x86_64.rpm
nss-sysinit-3.28.4-12.el7_4.x86_64.rpm
nss-tools-3.28.4-12.el7_4.x86_64.rpm

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

aarch64:
nss-debuginfo-3.28.4-12.el7_4.aarch64.rpm
nss-pkcs11-devel-3.28.4-12.el7_4.aarch64.rpm

ppc64:
nss-debuginfo-3.28.4-12.el7_4.ppc.rpm
nss-debuginfo-3.28.4-12.el7_4.ppc64.rpm
nss-pkcs11-devel-3.28.4-12.el7_4.ppc.rpm
nss-pkcs11-devel-3.28.4-12.el7_4.ppc64.rpm

ppc64le:
nss-debuginfo-3.28.4-12.el7_4.ppc64le.rpm
nss-pkcs11-devel-3.28.4-12.el7_4.ppc64le.rpm

s390x:
nss-debuginfo-3.28.4-12.el7_4.s390.rpm
nss-debuginfo-3.28.4-12.el7_4.s390x.rpm
nss-pkcs11-devel-3.28.4-12.el7_4.s390.rpm
nss-pkcs11-devel-3.28.4-12.el7_4.s390x.rpm

x86_64:
nss-debuginfo-3.28.4-12.el7_4.i686.rpm
nss-debuginfo-3.28.4-12.el7_4.x86_64.rpm
nss-pkcs11-devel-3.28.4-12.el7_4.i686.rpm
nss-pkcs11-devel-3.28.4-12.el7_4.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
nss-3.28.4-12.el7_4.src.rpm

x86_64:
nss-3.28.4-12.el7_4.i686.rpm
nss-3.28.4-12.el7_4.x86_64.rpm
nss-debuginfo-3.28.4-12.el7_4.i686.rpm
nss-debuginfo-3.28.4-12.el7_4.x86_64.rpm
nss-devel-3.28.4-12.el7_4.i686.rpm
nss-devel-3.28.4-12.el7_4.x86_64.rpm
nss-sysinit-3.28.4-12.el7_4.x86_64.rpm
nss-tools-3.28.4-12.el7_4.x86_64.rpm

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

x86_64:
nss-debuginfo-3.28.4-12.el7_4.i686.rpm
nss-debuginfo-3.28.4-12.el7_4.x86_64.rpm
nss-pkcs11-devel-3.28.4-12.el7_4.i686.rpm
nss-pkcs11-devel-3.28.4-12.el7_4.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-2017-7805
https://access.redhat.com/security/updates/classification/#important

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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