CVE-2016-1963

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Last Modified: UTC

Description

The CVE Program describes this issue as:

The FileReader class in Mozilla Firefox before 45.0 allows local users to gain privileges or cause a denial of service (memory corruption) by changing a file during a FileReader API read operation.

Statement

This issue does not affect the version of firefox and thunderbird as shipped with Red Hat Enterprise Linux 5, 6 and 7.

This issue does not affect the version of firefox and thunderbird as shipped with Red Hat Enterprise Linux 5, 6 and 7.

Additional information

  • Bugzilla 1315579: Mozilla: Memory corruption when modifying a file being read by FileReader (MFSA 2016-26)
  • FAQ: Frequently asked questions about CVE-2016-1963

Common Vulnerability Scoring System (CVSS) Score Details

Important note

CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).

The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v2 Score Breakdown
Red HatNVD

CVSS v2 Base Score

5.1

4.4

Attack Vector

Network

Local

Access Complexity

High

Medium

Authentication

None

None

Confidentiality Impact

Partial

Partial

Integrity Impact

Partial

Partial

Availability Impact

Partial

Partial

CVSS v2 Vector

Red Hat: AV:N/AC:H/Au:N/C:P/I:P/A:P

NVD: AV:L/AC:M/Au:N/C:P/I:P/A:P

Acknowledgements

Red Hat would like to thank The Mozilla Project for reporting this issue. Upstream acknowledges Oriol as the original reporter.

Frequently Asked Questions

Why is Red Hat's CVSS v3 score or Impact different from other vendors?

My product is listed as "Under investigation" or "Affected", when will Red Hat release a fix for this vulnerability?

What can I do if my product is listed as "Will not fix"?

What can I do if my product is listed as "Fix deferred"?

What is a mitigation?

I have a Red Hat product but it is not in the above list, is it affected?

Why is my security scanner reporting my product as vulnerable to this vulnerability even though my product version is fixed or not affected?

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