SB2017010404 - Ubuntu update for NSS

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Main Vulnerability Database SB2017010404

SB2017010404 - Ubuntu update for NSS

Published: January 4, 2017 Updated: December 8, 2025

Security Bulletin ID SB2017010404
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 33% Low 67%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 vulnerabilities.


1) NULL pointer dereference (CVE-ID: CVE-2016-5285)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in PK11_SignWithSymKey / ssl3_ComputeRecordMACConstantTime. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.


2) Information disclosure (CVE-ID: CVE-2016-8635)

CWE-ID: CWE-310 - Cryptographic Issues

CVSSv4:


Hubert Kario discovered that NSS incorrectly handled Diffie Hellman client key exchanges. A remote attacker could possibly use this flaw to perform a small subgroup confinement attack and recover private keys.

3) Information Exposure Through Timing Discrepancy (CVE-ID: CVE-2016-9074)

CWE-ID: CWE-208 - Information Exposure Through Timing Discrepancy

CVSSv4: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to timing discrepancy. A remote attacker can perform timing side-channel attacks and gain access to sensitive information. 


Remediation

Install update from vendor's website.

References