CVE-2015-4497: Use After Free
First published: Sat Aug 29 2015(Updated: )
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.
Credit: security@mozilla.org security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Firefox | =38.0 | |
| Firefox | =38.0.1 | |
| Firefox | =38.0.5 | |
| Firefox | =38.1.0 | |
| Firefox | =38.2.0 | |
| Firefox | =40.0.2 | |
| Firefox ESR | =38.0 | |
| Firefox ESR | =38.0.1 | |
| Firefox ESR | =38.0.5 | |
| Firefox ESR | =38.1.0 | |
| Firefox ESR | =38.2.0 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00013.html
- http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00025.html
- http://lists.opensuse.org/opensuse-updates/2015-09/msg00000.html
- http://rhn.redhat.com/errata/RHSA-2015-1693.html
- http://www.debian.org/security/2015/dsa-3345
- http://www.mozilla.org/security/announce/2015/mfsa2015-94.html
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- http://www.securityfocus.com/bid/76502
- http://www.securitytracker.com/id/1033397
- http://www.ubuntu.com/usn/USN-2723-1
- http://www.zerodayinitiative.com/advisories/ZDI-15-406
- https://bugzilla.mozilla.org/show_bug.cgi?id=1164766
- https://bugzilla.mozilla.org/show_bug.cgi?id=1175278
Frequently Asked Questions
What is the severity of CVE-2015-4497?
CVE-2015-4497 is classified as a critical vulnerability due to its potential to allow remote code execution.
How do I fix CVE-2015-4497?
To fix CVE-2015-4497, update Mozilla Firefox to version 40.0.3 or later, or Firefox ESR to version 38.2.1 or later.
What versions of Firefox are affected by CVE-2015-4497?
CVE-2015-4497 affects Mozilla Firefox versions before 40.0.3 and Firefox ESR versions before 38.2.1.
Can CVE-2015-4497 be exploited remotely?
Yes, CVE-2015-4497 can be exploited remotely by attackers through malicious web content.
What type of vulnerability is CVE-2015-4497?
CVE-2015-4497 is a use-after-free vulnerability in the CanvasRenderingContext2D implementation.
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- collector/mitre-cve
- source/MITRE
- agent/event
- agent/first-publish-date
- agent/author
- agent/last-modified-date
- agent/source
- agent/tags
- agent/softwarecombine
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- collector/nvd-index
- vendor/mozilla
- canonical/firefox
- version/firefox/38.0
- version/firefox/38.0.1
- version/firefox/38.0.5
- version/firefox/38.1.0
- version/firefox/38.2.0
- version/firefox/40.0.2
- canonical/firefox esr
- version/firefox esr/38.0
- version/firefox esr/38.0.1
- version/firefox esr/38.0.5
- version/firefox esr/38.1.0
- version/firefox esr/38.2.0