CVE-2016-1979: Use After Free
First published: Sun Mar 13 2016(Updated: )
Use-after-free vulnerability in the PK11_ImportDERPrivateKeyInfoAndReturnKey function in Mozilla Network Security Services (NSS) before 3.21.1, as used in Mozilla Firefox before 45.0, allows remote attackers to cause a denial of service or possibly have unspecified other impact via crafted key data with DER encoding.
Credit: security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mozilla Firefox | <=44.0.2 | |
| Mozilla NSS ESR | <=3.21 |
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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/msg00029.html
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00031.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-3576
- http://www.debian.org/security/2016/dsa-3688
- http://www.mozilla.org/security/announce/2016/mfsa2016-36.html
- http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.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/84221
- http://www.securitytracker.com/id/1035215
- http://www.ubuntu.com/usn/USN-2973-1
- https://bto.bluecoat.com/security-advisory/sa124
- https://bugzilla.mozilla.org/show_bug.cgi?id=1185033
- https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.21.1_release_notes
- https://security.gentoo.org/glsa/201605-06
Frequently Asked Questions
What is the severity of CVE-2016-1979?
CVE-2016-1979 has been classified as having a high severity due to its potential to cause denial of service and other unspecified impacts.
How do I fix CVE-2016-1979?
To mitigate CVE-2016-1979, users should upgrade to Mozilla Firefox version 45.0 or later and ensure NSS is upgraded to version 3.21.1 or later.
What causes the vulnerability in CVE-2016-1979?
CVE-2016-1979 is caused by a use-after-free vulnerability in the PK11_ImportDERPrivateKeyInfoAndReturnKey function within Mozilla's Network Security Services.
Is CVE-2016-1979 exploitable remotely?
Yes, remote attackers can exploit CVE-2016-1979 by sending crafted key data to trigger the vulnerability.
Which software versions are affected by CVE-2016-1979?
CVE-2016-1979 affects Mozilla Firefox versions up to 44.0.2 and Mozilla NSS versions up to 3.21.
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