CVE-2016-5256

Impact:
Critical
Public Date:
2016-09-20
Bugzilla:
1377666: CVE-2016-5256 Mozilla: Memory safety bugs fixed in Firefox 49 (MFSA 2016-85)

The MITRE CVE dictionary describes this issue as:

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 49.0 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.

Find out more about CVE-2016-5256 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 6.8
Base Metrics AV:N/AC:M/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial

CVSS v3 metrics

NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.

CVSS3 Base Score 7.3
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity Impact Low
Availability Impact Low

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 7 firefox Not affected
Red Hat Enterprise Linux 7 thunderbird Not affected
Red Hat Enterprise Linux 6 firefox Not affected
Red Hat Enterprise Linux 6 thunderbird Not affected
Red Hat Enterprise Linux 5 thunderbird Not affected
Red Hat Enterprise Linux 5 firefox Not affected
Unless explicitly stated as not affected, all previous versions of packages in any minor update stream of a product listed here should be assumed vulnerable, although may not have been subject to full analysis.

Acknowledgements

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Christoph Diehl, Christian Holler, Gary Kwong, Nathan Froyd, Honza Bambas, Seth Fowler, and Michael Smith as the original reporters.

External References

Last Modified

CVE description copyright © 2017, The MITRE Corporation