// For flags

CVE-2016-1978

nss: Use-after-free in NSS during SSL connections in low memory (MFSA 2016-15)

Severity Score

7.3
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

Vulnerabilidad de uso después de liberación de memoria en la función ssl3_HandleECDHServerKeyExchange en Mozilla Network Security Services (NSS) en versiones anteriores a 3.21, como se utiliza en Mozilla Firefox en versiones anteriores a 44.0, permite a atacantes remotos causar una denegación de servicio o posiblemente tener otro impacto no especificado llevando a cabo un apretón de manos SSL (1) DHE o (2) ECDHE en un momento de alto consumo de memoria.

A use-after-free flaw was found in the way NSS handled DHE (Diffie–Hellman key exchange) and ECDHE (Elliptic Curve Diffie-Hellman key exchange) handshake messages. A remote attacker could send a specially crafted handshake message that, when parsed by an application linked against NSS, would cause that application to crash or, under certain special conditions, execute arbitrary code using the permissions of the user running the application.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
Attack Vector
Network
Attack Complexity
High
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2016-01-20 CVE Reserved
  • 2016-03-13 CVE Published
  • 2023-06-14 EPSS Updated
  • 2024-08-05 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
CAPEC
References (22)
URL Tag Source
http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html X_refsource_confirm
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html X_refsource_confirm
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html X_refsource_confirm
http://www.securityfocus.com/bid/84275 Vdb Entry
http://www.securityfocus.com/bid/91787 Vdb Entry
http://www.securitytracker.com/id/1035258 Vdb Entry
https://bto.bluecoat.com/security-advisory/sa124 X_refsource_confirm
https://bugzilla.mozilla.org/show_bug.cgi?id=1209546 X_refsource_confirm
https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.21_release_notes X_refsource_misc
URL Date SRC
URL Date SRC
URL Date SRC
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00027.html 2017-11-04
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00050.html 2017-11-04
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00068.html 2017-11-04
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00093.html 2017-11-04
http://rhn.redhat.com/errata/RHSA-2016-0591.html 2017-11-04
http://rhn.redhat.com/errata/RHSA-2016-0684.html 2017-11-04
http://rhn.redhat.com/errata/RHSA-2016-0685.html 2017-11-04
http://www.debian.org/security/2016/dsa-3688 2017-11-04
http://www.mozilla.org/security/announce/2016/mfsa2016-15.html 2017-11-04
http://www.ubuntu.com/usn/USN-2973-1 2017-11-04
https://security.gentoo.org/glsa/201605-06 2017-11-04
https://access.redhat.com/security/cve/CVE-2016-1978 2016-04-25
https://bugzilla.redhat.com/show_bug.cgi?id=1315565 2016-04-25
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Mozilla
Search vendor "Mozilla"
 Firefox
Search vendor "Mozilla" for product "Firefox"
 <= 43.0.4
Search vendor "Mozilla" for product "Firefox" and version " <= 43.0.4"
-
Affected
in Mozilla
Search vendor "Mozilla"
 Network Security Services
Search vendor "Mozilla" for product "Network Security Services"
 <= 3.20.1
Search vendor "Mozilla" for product "Network Security Services" and version " <= 3.20.1"
-
Affected