CVE-2015-2731

Impact:
Critical
Public Date:
2015-07-02
CWE:
CWE-416
Bugzilla:
1236953: CVE-2015-2731 Mozilla: Use-after-free in Content Policy due to microtask execution error (MFSA 2015-63)

The MITRE CVE dictionary describes this issue as:

Use-after-free vulnerability in the CSPService::ShouldLoad function in the microtask implementation in Mozilla Firefox before 39.0, Firefox ESR 38.x before 38.1, and Thunderbird before 38.1 allows remote attackers to execute arbitrary code by leveraging client-side JavaScript that triggers removal of a DOM object on the basis of a Content Policy.

Find out more about CVE-2015-2731 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v2 metrics

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

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 5 (thunderbird) RHSA-2015:1455 2015-07-20
Red Hat Enterprise Linux 6 (firefox) RHSA-2015:1207 2015-07-03
Red Hat Enterprise Linux 5 (firefox) RHSA-2015:1207 2015-07-03
Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server) (thunderbird) RHSA-2015:1455 2015-07-20
Red Hat Enterprise Linux 6 (thunderbird) RHSA-2015:1455 2015-07-20
Red Hat Enterprise Linux 7 (firefox) RHSA-2015:1207 2015-07-03
Red Hat Enterprise Linux 7 (thunderbird) RHSA-2015:1455 2015-07-20

Acknowledgements

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Herre as the original reporter.

External References

Last Modified

CVE description copyright © 2017, The MITRE Corporation