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CVE-2011-4566

6.4 · MEDIUM

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 location…

Published Nov 29, 2011phpCWE-189EPSS 6.56%

Overview

CVE-2011-4566 is a medium-severity vulnerability affecting php php. It was published on November 29, 2011 and has a CVSS 2.0 base score of 6.4 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 6.4, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories and patches from php. Update php to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
phpphp>= 5.3.0, < 5.3.9Affected

References

Reflists.apple.com/archives/security-announce/2012/May/msg00001.htmlReflists.opensuse.org/opensuse-security-announce/2012-03/msg00016.htmlRefrhn.redhat.com/errata/RHSA-2012-0071.htmlRefsecunia.com/advisories/47253Refsecunia.com/advisories/48668Refsupport.apple.com/kb/HT5281Refwww.debian.org/security/2012/dsa-2399Refwww.mandriva.com/security/advisories?name=MDVSA-2011:197Refwww.redhat.com/support/errata/RHSA-2012-0019.htmlRefwww.securityfocus.com/bid/50907

How CyberStrike helps

Frequently asked questions

What is CVE-2011-4566?

CVE-2011-4566 is a medium-severity vulnerability affecting php php. It was published on November 29, 2011 and has a CVSS 2.0 base score of 6.4 (MEDIUM).

How severe is CVE-2011-4566?

This vulnerability has a CVSS 2.0 base score of 6.4, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2011-4566?

Check the references section for vendor advisories and patches from php. Update php to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2011-4566?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2011-4566 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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