Public Date:
1257276: CVE-2015-4497 Mozilla: Use-after-free when resizing canvas element during restyling (MFSA 2015-94)

The MITRE CVE dictionary describes this issue as:

Use-after-free vulnerability in the CanvasRenderingContext2D implementation in Mozilla Firefox before 40.0.3 and Firefox ESR 38.x before 38.2.1 allows remote attackers to execute arbitrary code by leveraging improper interaction between resize events and changes to Cascading Style Sheets (CSS) token sequences for a CANVAS element.

Find out more about CVE-2015-4497 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 7 (firefox) RHSA-2015:1693 2015-08-27
Red Hat Enterprise Linux 6 (firefox) RHSA-2015:1693 2015-08-27
Red Hat Enterprise Linux 5 (firefox) RHSA-2015:1693 2015-08-27


Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Jean-Max Reymond and Ucha Gobejishvili as the original reporter.

External References

Last Modified

CVE description copyright © 2017, The MITRE Corporation


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