CVE-2011-4566: Integer Overflow
First published: Tue Nov 29 2011(Updated: )
Integer overflow in the exif_process_IFD_TAG function in exif.c in the exif extension in PHP 5.4.0beta2 on 32-bit platforms allows remote attackers to read the contents of arbitrary memory locations or cause a denial of service via a crafted offset_val value in an EXIF header in a JPEG file, a different vulnerability than CVE-2011-0708.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| PHP | =5.4.0-beta2 | |
| PHP | >=5.3.0<5.3.9 | |
| Debian Linux | =5.0 | |
| Debian Linux | =7.0 | |
| Debian Linux | =6.0 | |
| Ubuntu | =10.10 | |
| Ubuntu | =11.04 | |
| Ubuntu | =11.10 | |
| Ubuntu | =8.04 | |
| Ubuntu | =10.04 |
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Reference Links
- http://lists.apple.com/archives/security-announce/2012/May/msg00001.html
- http://lists.opensuse.org/opensuse-security-announce/2012-03/msg00016.html
- http://rhn.redhat.com/errata/RHSA-2012-0071.html
- http://secunia.com/advisories/47253
- http://secunia.com/advisories/48668
- http://support.apple.com/kb/HT5281
- http://www.debian.org/security/2012/dsa-2399
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:197
- http://www.redhat.com/support/errata/RHSA-2012-0019.html
- http://www.securityfocus.com/bid/50907
- https://bugs.php.net/bug.php?id=60150
- https://exchange.xforce.ibmcloud.com/vulnerabilities/71612
- https://www.ubuntu.com/usn/USN-1307-1/
Frequently Asked Questions
What is the severity of CVE-2011-4566?
CVE-2011-4566 has a severity rating that indicates it can lead to the reading of arbitrary memory locations or denial of service.
How do I fix CVE-2011-4566?
To fix CVE-2011-4566, upgrade to a version of PHP that is not vulnerable, such as PHP 5.4 or higher.
Which versions of PHP are affected by CVE-2011-4566?
CVE-2011-4566 affects PHP version 5.4.0beta2 and any 5.3 versions up to 5.3.9.
What types of attacks can CVE-2011-4566 enable?
CVE-2011-4566 can enable remote attackers to exploit vulnerabilities in image processing to read sensitive data or crash the application.
On which platforms does CVE-2011-4566 pose a risk?
CVE-2011-4566 primarily poses a risk on 32-bit platforms due to the nature of the integer overflow vulnerability.
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