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CVE-2016-1978

Published: 13 March 2016

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.

Priority

Medium

Cvss 3 Severity Score

7.3

Score breakdown

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
precise
Released (44.0.2+build1-0ubuntu0.12.04.1)
trusty
Released (44.0.2+build1-0ubuntu0.14.04.1)
upstream
Released (44)
wily
Released (44.0.2+build1-0ubuntu0.15.10.1)
xenial Not vulnerable
(45.0+build2-0ubuntu1)
yakkety Not vulnerable
(45.0+build2-0ubuntu1)
zesty Not vulnerable
(45.0+build2-0ubuntu1)
nss
Launchpad, Ubuntu, Debian
precise
Released (2:3.21-0ubuntu0.12.04.2)
trusty
Released (2:3.21-0ubuntu0.14.04.1)
upstream
Released (2:3.21-1)
wily
Released (2:3.21-0ubuntu0.15.10.1)
xenial Not vulnerable
(2:3.21-1ubuntu3)
yakkety Not vulnerable
(2:3.21-1ubuntu3)
zesty Not vulnerable
(2:3.21-1ubuntu3)
thunderbird
Launchpad, Ubuntu, Debian
precise
Released (1:38.8.0+build1-0ubuntu0.12.04.1)
trusty
Released (1:38.8.0+build1-0ubuntu0.14.04.1)
upstream
Released (38.8.0)
wily
Released (1:38.8.0+build1-0ubuntu0.15.10.1)
xenial
Released (1:38.8.0+build1-0ubuntu0.16.04.1)
yakkety
Released (1:38.8.0+build1-0ubuntu1)
zesty
Released (1:38.8.0+build1-0ubuntu1)

Severity score breakdown

Parameter Value
Base score 7.3
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