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Public Date:
758413: CVE-2011-4566 php: integer overflow in exif_process_IFD_TAG() may lead to DoS or arbitrary memory disclosure

The MITRE CVE dictionary describes this issue as:

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.

Find out more about CVE-2011-4566 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 5.8
Base Metrics AV:N/AC:M/Au:N/C:P/I:N/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux 5 (php53) RHSA-2012:0019 2012-01-11
Red Hat Enterprise Linux 6 (php) RHSA-2012:0019 2012-01-11
Red Hat Enterprise Linux 5 (php) RHSA-2012:0033 2012-01-18
Red Hat Enterprise Linux 4 (php) RHSA-2012:0071 2012-01-30

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