SB2016092223 - Security bypass in Mozilla Firefox

Description

This security bulletin contains information about 1 vulnerability.

1) Security bypass (CVE-ID: CVE-2016-5284)

CWE-ID: CWE-284 - Improper Access Control

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

The vulnerability allows a remote user to access potentially sensitive information on the target system.
The weakness exists due to ineffectiveness of certificate pinning for add-on updates. Such inefficiency allows a remote user with mis-issued certificate for a Mozilla web site to send malicious add-on updates to the network users.
Successful exploitation of the vulnerability may result in private information disclosure.

Remediation

Install update from vendor's website.

References

• https://www.mozilla.org/en-US/security/advisories/mfsa2016-85/
• http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html
• http://www.oracle.com/technetwork/topics/security/bulletinoct2016-3090566.html