CVE-2015-0803: Use After Free
First published: Wed Apr 01 2015(Updated: )
The HTMLSourceElement::AfterSetAttr function in Mozilla Firefox before 37.0 does not properly constrain the original data type of a casted value during the setting of a SOURCE element's attributes, which allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free) via a crafted HTML document.
Credit: security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Ubuntu | =12.04 | |
| Ubuntu | =14.04 | |
| Ubuntu | =14.10 | |
| openSUSE | =13.1 | |
| openSUSE | =13.2 | |
| Firefox | <=36.0.4 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00003.html
- http://www.mozilla.org/security/announce/2015/mfsa2015-39.html
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- http://www.securitytracker.com/id/1031996
- http://www.ubuntu.com/usn/USN-2550-1
- https://bugzilla.mozilla.org/show_bug.cgi?id=1134561
- https://security.gentoo.org/glsa/201512-10
Frequently Asked Questions
What is the severity of CVE-2015-0803?
CVE-2015-0803 is considered a critical vulnerability due to its potential to allow remote code execution and denial of service.
How do I fix CVE-2015-0803?
To fix CVE-2015-0803, upgrade Mozilla Firefox to version 37.0 or later.
Which software versions are affected by CVE-2015-0803?
CVE-2015-0803 affects Mozilla Firefox versions up to 36.0.4 and specific versions of Ubuntu and openSUSE.
What types of attacks are possible due to CVE-2015-0803?
CVE-2015-0803 can be exploited to execute arbitrary code or cause a use-after-free denial of service.
Is there a workaround for CVE-2015-0803 if I cannot update?
There is no known workaround for CVE-2015-0803, so updating the affected software is the recommended action.
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- version/ubuntu/12.04
- version/ubuntu/14.04
- version/ubuntu/14.10
- vendor/opensuse
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- version/opensuse/13.2
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- version/firefox/36.0.4