CVE-2015-4492: Use After Free
First published: Sun Aug 16 2015(Updated: )
Use-after-free vulnerability in the XMLHttpRequest::Open implementation in Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 might allow remote attackers to execute arbitrary code via a SharedWorker object that makes recursive calls to the open method of an XMLHttpRequest object.
Credit: security@mozilla.org security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Oracle Solaris and Zettabyte File System (ZFS) | =11.3 | |
| Firefox | <=39.0.3 | |
| Firefox | =38.0 | |
| Firefox | =38.0.1 | |
| Firefox | =38.0.5 | |
| Firefox | =38.1.0 | |
| Ubuntu | =12.04 | |
| Ubuntu | =14.04 | |
| Ubuntu | =15.04 | |
| SUSE Linux | =13.1 | |
| SUSE Linux | =13.2 | |
| Firefox ESR | =38.0 | |
| Firefox ESR | =38.0.1 | |
| Firefox ESR | =38.0.5 | |
| Firefox ESR | =38.1.0 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00014.html
- http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00015.html
- http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00021.html
- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00016.html
- http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00025.html
- http://lists.opensuse.org/opensuse-updates/2015-08/msg00030.html
- http://lists.opensuse.org/opensuse-updates/2015-08/msg00031.html
- http://rhn.redhat.com/errata/RHSA-2015-1586.html
- http://www.debian.org/security/2015/dsa-3333
- http://www.mozilla.org/security/announce/2015/mfsa2015-92.html
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- http://www.securityfocus.com/bid/76297
- http://www.securitytracker.com/id/1033247
- http://www.ubuntu.com/usn/USN-2702-1
- http://www.ubuntu.com/usn/USN-2702-2
- http://www.ubuntu.com/usn/USN-2702-3
- https://bugzilla.mozilla.org/show_bug.cgi?id=1185820
- https://security.gentoo.org/glsa/201605-06
Frequently Asked Questions
What is the severity of CVE-2015-4492?
CVE-2015-4492 is classified as a high severity vulnerability due to the potential for remote code execution.
How do I fix CVE-2015-4492?
To mitigate CVE-2015-4492, users should update Mozilla Firefox to version 40.0 or later, or update Firefox ESR to version 38.2 or later.
Which versions of Firefox are affected by CVE-2015-4492?
CVE-2015-4492 affects Mozilla Firefox versions prior to 40.0 and Firefox ESR versions prior to 38.2.
Can CVE-2015-4492 impact both desktop and mobile versions of Firefox?
CVE-2015-4492 primarily affects the desktop versions of Firefox as it is related to the XMLHttpRequest implementation.
What specific component is exploited in CVE-2015-4492?
CVE-2015-4492 exploits a use-after-free vulnerability in the XMLHttpRequest::Open implementation.
- agent/references
- agent/type
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- agent/weakness
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- collector/mitre-cve
- source/MITRE
- agent/event
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- agent/author
- agent/last-modified-date
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- agent/softwarecombine
- agent/tags
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- collector/nvd-index
- vendor/oracle
- canonical/oracle solaris and zettabyte file system (zfs)
- version/oracle solaris and zettabyte file system (zfs)/11.3
- vendor/mozilla
- canonical/firefox
- version/firefox/39.0.3
- version/firefox/38.0
- version/firefox/38.0.1
- version/firefox/38.0.5
- version/firefox/38.1.0
- vendor/canonical
- canonical/ubuntu
- version/ubuntu/12.04
- version/ubuntu/14.04
- version/ubuntu/15.04
- vendor/opensuse
- canonical/suse linux
- version/suse linux/13.1
- version/suse linux/13.2
- 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