CVE-2016-1978: Use After Free
First published: Sun Mar 13 2016(Updated: )
Use-after-free vulnerability in the ssl3_HandleECDHServerKeyExchange function in Mozilla Network Security Services (NSS) before 3.21, as used in Mozilla Firefox before 44.0, allows remote attackers to cause a denial of service or possibly have unspecified other impact by making an SSL (1) DHE or (2) ECDHE handshake at a time of high memory consumption.
Credit: security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mozilla Firefox | <=43.0.4 | |
| Mozilla NSS ESR | <=3.20.1 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00027.html
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00050.html
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00068.html
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00093.html
- http://rhn.redhat.com/errata/RHSA-2016-0591.html
- http://rhn.redhat.com/errata/RHSA-2016-0684.html
- http://rhn.redhat.com/errata/RHSA-2016-0685.html
- http://www.debian.org/security/2016/dsa-3688
- http://www.mozilla.org/security/announce/2016/mfsa2016-15.html
- http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
- http://www.securityfocus.com/bid/84275
- http://www.securityfocus.com/bid/91787
- http://www.securitytracker.com/id/1035258
- http://www.ubuntu.com/usn/USN-2973-1
- https://bto.bluecoat.com/security-advisory/sa124
- https://bugzilla.mozilla.org/show_bug.cgi?id=1209546
- https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.21_release_notes
- https://security.gentoo.org/glsa/201605-06
Frequently Asked Questions
What is the severity of CVE-2016-1978?
CVE-2016-1978 is classified as a high severity vulnerability due to its potential for causing denial of service and other unspecified impacts.
How do I fix CVE-2016-1978?
To fix CVE-2016-1978, update Mozilla Firefox to version 44.0 or later, or Mozilla NSS to version 3.21 or later.
What systems are affected by CVE-2016-1978?
CVE-2016-1978 affects Mozilla Firefox versions before 44.0 and Mozilla NSS versions before 3.21.
What type of vulnerability is CVE-2016-1978?
CVE-2016-1978 is a use-after-free vulnerability in the ssl3_HandleECDHServerKeyExchange function.
Can CVE-2016-1978 be exploited remotely?
Yes, CVE-2016-1978 can be exploited remotely by attackers through malicious SSL DHE communications.
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