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CVE-2016-5285

Published: 16 November 2016

A Null pointer dereference vulnerability exists in Mozilla Network Security Services due to a missing NULL check in PK11_SignWithSymKey / ssl3_ComputeRecordMACConstantTime, which could let a remote malicious user cause a Denial of Service.

Notes

AuthorNote
mdeslaur
per upstream bug, this was fixed in 3.25, but patch for 3.21
fixes it differently.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
nss
Launchpad, Ubuntu, Debian
upstream
Released (3.25)
precise
Released (2:3.26.2-0ubuntu0.12.04.1)
trusty
Released (2:3.26.2-0ubuntu0.14.04.3)
xenial
Released (2:3.26.2-0ubuntu0.16.04.2)
yakkety Not vulnerable
(2:3.26-1ubuntu1)
zesty Not vulnerable
(2:3.26-1ubuntu1)
Patches:
upstream: https://hg.mozilla.org/projects/nss/rev/45c047d18ac4

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H