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Category:   Application (Security)  >   Network Security Services (NSS) Vendors:   Mozilla.org
(Oracle Issues Fix for Oracle Linux for Network Security Services (NSS)) Mozilla Firefox Multiple Flaws Let Remote Users Execute Arbitrary Code, Obtain Potentially Sensitive Information, Bypass Security Restrictions, and Gain Elevated Privileges
SecurityTracker Alert ID:  1035682
SecurityTracker URL:  http://securitytracker.com/id/1035682
CVE Reference:   CVE-2015-2730   (Links to External Site)
Date:  Apr 26 2016
Impact:   Disclosure of authentication information, Disclosure of system information, Disclosure of user information, Execution of arbitrary code via network, Modification of authentication 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 gain elevated privileges. A remote user can bypass security controls on the target system. A remote user can obtain potentially sensitive information on the target system. Network Security Services (NSS) is affected.

A remote user can create specially crafted HTML that, when loaded by the target user, will trigger a memory corruption error and execute arbitrary code on the target system [CVE-2015-2724, CVE-2015-2725, CVE-2015-2726, CVE-2015-2734, CVE-2015-2735, CVE-2015-2736, CVE-2015-2737, CVE-2015-2738, CVE-2015-2739, CVE-2015-2740]. The code will run with the privileges of the target user.

When the target user opens a link on a page using the mouse and specific keyboard key combinations, a Chrome privileged URL can be opened without context restrictions being applied [CVE-2015-2727]. This vulnerability was previously reported but was not applied to version 38.

A remote user can trigger a type confusion error in the Indexed Database Manager to execute arbitrary code [CVE-2015-2728].

A remote user can trigger an out-of-bounds memory read in AudioParamTimeline::AudioNodeInputValue() in the processing of Web Audio to determine the contents of four bytes of memory [CVE-2015-2729].

A remote user can trigger a use-after-free memory error in CSPService::ShouldLoad() when a Content Policy modifies the Document Object Model (DOM) to remove a DOM object [CVE-2015-2731].

The Elliptical Curve Cryptography (ECC) multiplication for Elliptic Curve Digital Signature Algorithm (ECDSA) signature validation in Network Security Services (NSS) does not properly handle certain exceptional cases [CVE-2015-2730]. A remote user may be able to exploit this to forge signatures.

A remote user can trigger a use-after-free memory error when using XMLHttpRequest in conjunction with shared or dedicated workers [CVE-2015-2722, CVE-2015-2733].

When an error that may be overridden occurs, key pinning checks may be missed [CVE-2015-2741].

Crash reports on OS X may contain native key press information [CVE-2015-2742].

A remote user can create a specially crafted PDF file that, when loaded by the target user, will trigger a flaw in the 'PDF.js' viewer and execute code with elevated privileges [CVE-2015-2743].

A remote user that can conduct a man-in-the-middle attack can cause the target system to downgrade the Diffie-Hellman algorithm to 512-bit export-grade cryptography [CVE-2015-4000]. The remote user may then be able to decrypt the connection.

This vulnerability resides in the TLS protocol and not in the specific TLS implementation, but the vulnerability is exposed because the target system supports export-grade ciphers. This attack is known as the "Logjam" attack.

A remote user (server) can exploit a flaw in Network Security Services (NSS) by failing to send the ServerKeyExchange message as part of a ECDHE_ECDSA exchange to cause the target NSS client to use the EC key from the ECDSA certificate, a downgraded exchange [CVE-2015-2721].

Bob Clary, Christian Holler, Bobby Holley, Andrew McCreight, Terrence Cole, Steve Fink, Mats Palmgren, Wes Kocher, Andreas Pehrson, Tooru Fujisawa, Andrew Sutherland, Gary Kwong, Jann Horn, Paul Bandha, Holger Fuhrmannek, Herre, Watson Ladd, Looben Yan, Ronald Crane, David Keeler, David Parks, Jonas Jenwald, Matthew Green, David Adrian et al, and Karthikeyan Bhargavan 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 gain elevated privileges on the target system.

A remote user can bypass security controls on the target system.

A remote user can obtain potentially sensitive information on the target system.

Solution:   Oracle has issued a fix for CVE-2015-2730 for Network Security Services (NSS).

The Oracle Linux advisory is available at:

http://linux.oracle.com/errata/ELSA-2016-0685.html

Vendor URL:  linux.oracle.com/errata/ELSA-2016-0685.html (Links to External Site)
Cause:   Access control error, Authentication error, Boundary error, Input validation error
Underlying OS:  Linux (Oracle)
Underlying OS Comments:  7

Message History:   This archive entry is a follow-up to the message listed below.
Jul 3 2015 Mozilla Firefox Multiple Flaws Let Remote Users Execute Arbitrary Code, Obtain Potentially Sensitive Information, Bypass Security Restrictions, and Gain Elevated Privileges



 Source Message Contents

Subject:  [El-errata] ELSA-2016-0685 Moderate: Oracle Linux 7 nss, nspr, nss-softokn, and nss-util security, bug fix, and enhancement update

Oracle Linux Security Advisory ELSA-2016-0685

http://linux.oracle.com/errata/ELSA-2016-0685.html

The following updated rpms for Oracle Linux 7 have been uploaded to the 
Unbreakable Linux Network:

x86_64:
nspr-4.11.0-1.el7_2.i686.rpm
nspr-4.11.0-1.el7_2.x86_64.rpm
nspr-devel-4.11.0-1.el7_2.i686.rpm
nspr-devel-4.11.0-1.el7_2.x86_64.rpm
nss-3.21.0-9.0.1.el7_2.i686.rpm
nss-3.21.0-9.0.1.el7_2.x86_64.rpm
nss-devel-3.21.0-9.0.1.el7_2.i686.rpm
nss-devel-3.21.0-9.0.1.el7_2.x86_64.rpm
nss-pkcs11-devel-3.21.0-9.0.1.el7_2.i686.rpm
nss-pkcs11-devel-3.21.0-9.0.1.el7_2.x86_64.rpm
nss-softokn-3.16.2.3-14.2.el7_2.i686.rpm
nss-softokn-3.16.2.3-14.2.el7_2.x86_64.rpm
nss-softokn-devel-3.16.2.3-14.2.el7_2.i686.rpm
nss-softokn-devel-3.16.2.3-14.2.el7_2.x86_64.rpm
nss-softokn-freebl-3.16.2.3-14.2.el7_2.i686.rpm
nss-softokn-freebl-3.16.2.3-14.2.el7_2.x86_64.rpm
nss-softokn-freebl-devel-3.16.2.3-14.2.el7_2.i686.rpm
nss-softokn-freebl-devel-3.16.2.3-14.2.el7_2.x86_64.rpm
nss-sysinit-3.21.0-9.0.1.el7_2.x86_64.rpm
nss-tools-3.21.0-9.0.1.el7_2.x86_64.rpm
nss-util-3.21.0-2.2.el7_2.i686.rpm
nss-util-3.21.0-2.2.el7_2.x86_64.rpm
nss-util-devel-3.21.0-2.2.el7_2.i686.rpm
nss-util-devel-3.21.0-2.2.el7_2.x86_64.rpm


SRPMS:
http://oss.oracle.com/ol7/SRPMS-updates/nspr-4.11.0-1.el7_2.src.rpm
http://oss.oracle.com/ol7/SRPMS-updates/nss-3.21.0-9.0.1.el7_2.src.rpm
http://oss.oracle.com/ol7/SRPMS-updates/nss-softokn-3.16.2.3-14.2.el7_2.src.rpm
http://oss.oracle.com/ol7/SRPMS-updates/nss-util-3.21.0-2.2.el7_2.src.rpm


Description of changes:

nspr
[4.11.0-1]
- Rebase to NSPR 4.11

nss
[3.21.0-9.0.1]
- Added nss-vendor.patch to change vendor

[3.21.0-9]
- Rebuild to require the latest nss-util build and nss-softokn build.

[3.21.0-8]
- Update the minimum nss-softokn build required at runtime.

[3.21.0-7]
- Delete duplicates from one table

[3.21.0-6]
- Fix missing support for sha384/dsa in certificate_request

[3.21.0-5]
- Fix the SigAlgs sent in certificate_request

[3.21.0-4]
- Ensure all ssl.sh tests are executed
- Update sslauth test patch to run additional tests

[3.21.0-2]
- Fix sha384 support and testing patches

[3.21.0-1]
- Rebase to NSS-3.21
- Resolves: Bug 1310581

nss-softokn
[3.16.2.3-14.2]

- Adjust for a renamed variable in newer nss-util, require a compatible 
nss-util version.

[3.16.2.3-14.1]
- Pick up a bugfix related to fork(), to avoid a regression with NSS 3.21

[3.16.2.3-14]
- Pick up upstream freebl patch for CVE-2015-2730
- Check for P == Q or P ==-Q before adding P and Q

nss-util
[3.21.0-2.2]
- Rebase to nss-util from nss 3.21
- Add aliases for naming compatibility with prior release


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