CVE-2016-1978

Publication date 13 March 2016

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

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.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
firefox	17.04 zesty	Not affected
	16.10 yakkety	Not affected
	16.04 LTS xenial	Not affected
	15.10 wily	Fixed 44.0.2+build1-0ubuntu0.15.10.1
	14.04 LTS trusty	Fixed 44.0.2+build1-0ubuntu0.14.04.1
	12.04 LTS precise	Fixed 44.0.2+build1-0ubuntu0.12.04.1
nss	17.04 zesty	Not affected
	16.10 yakkety	Not affected
	16.04 LTS xenial	Not affected
	15.10 wily	Fixed 2:3.21-0ubuntu0.15.10.1
	14.04 LTS trusty	Fixed 2:3.21-0ubuntu0.14.04.1
	12.04 LTS precise	Fixed 2:3.21-0ubuntu0.12.04.2
thunderbird	17.04 zesty	Fixed 1:38.8.0+build1-0ubuntu1
	16.10 yakkety	Fixed 1:38.8.0+build1-0ubuntu1
	16.04 LTS xenial	Fixed 1:38.8.0+build1-0ubuntu0.16.04.1
	15.10 wily	Fixed 1:38.8.0+build1-0ubuntu0.15.10.1
	14.04 LTS trusty	Fixed 1:38.8.0+build1-0ubuntu0.14.04.1
	12.04 LTS precise	Fixed 1:38.8.0+build1-0ubuntu0.12.04.1

Severity score breakdown

Parameter	Value
Base score	7.3 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	Low
Integrity impact	Low
Availability impact	Low
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

References

Related Ubuntu Security Notices (USN)

USN-2973-1
Thunderbird vulnerabilities
19 May 2016