medium
6.5
CWE
125
Advisory Published
Updated

CVE-2019-11047: Heap-buffer-overflow READ in exif

First published: Tue Dec 17 2019(Updated: )

A vulnerability was found in PHP EXIF extension is parsing EXIF information from an image, e.g. via exif_read_data() function, in PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13 and 7.4.0 it is possible to supply it with data what will cause it to read past the allocated buffer. This may lead to information disclosure or crash. Reference: <a href="https://bugs.php.net/bug.php?id=78910">https://bugs.php.net/bug.php?id=78910</a>

Credit: security@php.net security@php.net

Affected SoftwareAffected VersionHow to fix
redhat/rh-php73-php<0:7.3.20-1.el7
0:7.3.20-1.el7
PHP PHP>=7.2.0<7.2.26
PHP PHP>=7.3.0<7.3.13
PHP PHP=7.4.0
Fedoraproject Fedora=30
Fedoraproject Fedora=31
Debian Debian Linux=8.0
Debian Debian Linux=9.0
Debian Debian Linux=10.0
Canonical Ubuntu Linux=12.04
Canonical Ubuntu Linux=14.04
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=19.04
Canonical Ubuntu Linux=19.10
PHP PHP<7.2.26
7.2.26
redhat/php 7.2Git-2019-12<04
04
debian/php5
debian/php7.0
debian/php7.3

Remedy

https://bugs.php.net/bug.php?id=78910

Remedy

http://git.php.net/?p=php-src.git;a=commit;h=d348cfb96f2543565691010ade5e0346338be5a7

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2019-11047?

    CVE-2019-11047 is a fixed bug related to a heap-buffer-overflow read vulnerability in the PHP EXIF extension.

  • Is PHP version 7.4.0 affected by CVE-2019-11047?

    Yes, PHP version 7.4.0 is affected by CVE-2019-11047.

  • How can I check if my PHP version is affected by CVE-2019-11047?

    You can check if your PHP version is affected by CVE-2019-11047 by referring to the affected software list or by checking the PHP version against the known vulnerable versions (7.2.x below 7.2.26, 7.3.x below 7.3.13, and 7.4.0).

  • What is the severity of CVE-2019-11047?

    CVE-2019-11047 has a severity rating of 6.5 (medium).

  • How do I fix the CVE-2019-11047 vulnerability?

    To fix the CVE-2019-11047 vulnerability, you should update PHP to a patched version (7.2.26 or later, 7.3.13 or later, or 7.4.0 or later) or apply any available security patches provided by your operating system or software vendor.

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