SB2016021708 - Ubuntu update for nss

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Main Vulnerability Database SB2016021708

SB2016021708 - Ubuntu update for nss

Published: February 17, 2016 Updated: October 30, 2026

Security Bulletin ID SB2016021708
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Cryptographic issues (CVE-ID: CVE-2016-1938)

CWE-ID: CWE-310 - Cryptographic Issues

CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

The s_mp_div function in lib/freebl/mpi/mpi.c in Mozilla Network Security Services (NSS) before 3.21, as used in Mozilla Firefox before 44.0, improperly divides numbers, which might make it easier for remote attackers to defeat cryptographic protection mechanisms by leveraging use of the (1) mp_div or (2) mp_exptmod function.


Remediation

Install update from vendor's website.

References