CVE-2016-5254

Impact:
Low
Public Date:
2016-08-02
Bugzilla:
1361980: CVE-2016-5254 Mozilla: Use-after-free when using alt key and toplevel menus (MFSA 2016-70)

The MITRE CVE dictionary describes this issue as:

Use-after-free vulnerability in the nsXULPopupManager::KeyDown function in Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 allows attackers to execute arbitrary code or cause a denial of service (heap memory corruption and application crash) by leveraging keyboard access to use the Alt key during selection of top-level menu items.

Find out more about CVE-2016-5254 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v2 metrics

Base Score 5.1
Base Metrics AV:N/AC:H/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity High
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial

CVSS v3 metrics

CVSS3 Base Score 5.6
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack Vector Network
Attack Complexity High
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).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux 6 (firefox) RHSA-2016:1551 2016-08-03
Red Hat Enterprise Linux 7 (firefox) RHSA-2016:1551 2016-08-03
Red Hat Enterprise Linux 5 (firefox) RHSA-2016:1551 2016-08-03

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 7 thunderbird Not affected
Red Hat Enterprise Linux 6 thunderbird Not affected
Red Hat Enterprise Linux 5 thunderbird 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 Abhishek Arya as the original reporter.

External References

Last Modified

CVE description copyright © 2017, The MITRE Corporation