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Category:   Application (Security)  >   Network Security Services (NSS) Vendors:   Mozilla.org
(Oracle Issues Fix for Oracle Linux) Network Security Services (NSS) SSL DHE/ECDHE Use-After-Free Memory Error May Let Remote Users Execute Arbitrary Code on the Target System
SecurityTracker Alert ID:  1035493
SecurityTracker URL:  http://securitytracker.com/id/1035493
CVE Reference:   CVE-2016-1978   (Links to External Site)
Date:  Apr 6 2016
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Network Security Services (NSS). A remote user may be able to execute arbitrary code on the target system.

A remote user can send specially crafted DHE and ECDHE handshake data to trigger a user-after-free memory error when the target system's available memory is low and potentially execute arbitrary code on the target system.

Eric Rescorla reported this vulnerability vulnerability.

Impact:   A remote user may be able to execute arbitrary code on the target system.
Solution:   Oracle has issued a fix.

The Oracle Linux advisory is available at:

http://linux.oracle.com/errata/ELSA-2016-0591.html

Vendor URL:  linux.oracle.com/errata/ELSA-2016-0591.html (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Oracle)
Underlying OS Comments:  6

Message History:   This archive entry is a follow-up to the message listed below.
Mar 14 2016 Network Security Services (NSS) SSL DHE/ECDHE Use-After-Free Memory Error May Let Remote Users Execute Arbitrary Code on the Target System



 Source Message Contents

Subject:  [El-errata] ELSA-2016-0591 Moderate: Oracle Linux 6 nss, nss-util, and nspr security, bug fix, and enhancement update

Oracle Linux Security Advisory ELSA-2016-0591

http://linux.oracle.com/errata/ELSA-2016-0591.html

The following updated rpms for Oracle Linux 6 have been uploaded to the 
Unbreakable Linux Network:

i386:
nspr-4.11.0-0.1.el6_7.i686.rpm
nspr-devel-4.11.0-0.1.el6_7.i686.rpm
nss-3.21.0-0.3.0.1.el6_7.i686.rpm
nss-devel-3.21.0-0.3.0.1.el6_7.i686.rpm
nss-pkcs11-devel-3.21.0-0.3.0.1.el6_7.i686.rpm
nss-sysinit-3.21.0-0.3.0.1.el6_7.i686.rpm
nss-tools-3.21.0-0.3.0.1.el6_7.i686.rpm
nss-util-3.21.0-0.3.el6_7.i686.rpm
nss-util-devel-3.21.0-0.3.el6_7.i686.rpm

x86_64:
nspr-4.11.0-0.1.el6_7.i686.rpm
nspr-4.11.0-0.1.el6_7.x86_64.rpm
nspr-devel-4.11.0-0.1.el6_7.i686.rpm
nspr-devel-4.11.0-0.1.el6_7.x86_64.rpm
nss-3.21.0-0.3.0.1.el6_7.i686.rpm
nss-3.21.0-0.3.0.1.el6_7.x86_64.rpm
nss-devel-3.21.0-0.3.0.1.el6_7.i686.rpm
nss-devel-3.21.0-0.3.0.1.el6_7.x86_64.rpm
nss-pkcs11-devel-3.21.0-0.3.0.1.el6_7.i686.rpm
nss-pkcs11-devel-3.21.0-0.3.0.1.el6_7.x86_64.rpm
nss-sysinit-3.21.0-0.3.0.1.el6_7.x86_64.rpm
nss-tools-3.21.0-0.3.0.1.el6_7.x86_64.rpm
nss-util-3.21.0-0.3.el6_7.i686.rpm
nss-util-3.21.0-0.3.el6_7.x86_64.rpm
nss-util-devel-3.21.0-0.3.el6_7.i686.rpm
nss-util-devel-3.21.0-0.3.el6_7.x86_64.rpm


SRPMS:
http://oss.oracle.com/ol6/SRPMS-updates/nspr-4.11.0-0.1.el6_7.src.rpm
http://oss.oracle.com/ol6/SRPMS-updates/nss-3.21.0-0.3.0.1.el6_7.src.rpm
http://oss.oracle.com/ol6/SRPMS-updates/nss-util-3.21.0-0.3.el6_7.src.rpm



Description of changes:

nspr
[4.11.0-0.1]
- Rebase to NSPR 4.11

nss
[3.21.0-0.3.0.1]
- Added nss-vendor.patch to change vendor

[3.21.0-0.3]
- Ensure all ssl.sh tests are executed

[3.21.0-0.2]
- Ensure abi compatibility

[3.21.0-0.1]
- Rebase to NSS-3.21

nss-util
[3.21.0-0.3]
- Rebase RHEL 6.7.z to NSS-util 3.21 in preparation for Firefox 45
- Resolves: Bug 1299874
- Update upstream patch for CVE-2016-1950



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