CVE-2016-7127
First published: Mon Sep 12 2016(Updated: )
The imagegammacorrect function in ext/gd/gd.c in PHP before 5.6.25 and 7.x before 7.0.10 does not properly validate gamma values, which allows remote attackers to cause a denial of service (out-of-bounds write) or possibly have unspecified other impact by providing different signs for the second and third arguments.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| PHP | <7.0.10 | 7.0.10 |
| PHP | <=5.6.24 | |
| PHP | =7.0.0 | |
| PHP | =7.0.1 | |
| PHP | =7.0.2 | |
| PHP | =7.0.3 | |
| PHP | =7.0.4 | |
| PHP | =7.0.5 | |
| PHP | =7.0.6 | |
| PHP | =7.0.7 | |
| PHP | =7.0.8 | |
| PHP | =7.0.9 |
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Reference Links
- http://openwall.com/lists/oss-security/2016/09/02/9
- http://rhn.redhat.com/errata/RHSA-2016-2750.html
- http://www.php.net/ChangeLog-5.php
- http://www.php.net/ChangeLog-7.php
- http://www.securityfocus.com/bid/92757
- http://www.securitytracker.com/id/1036680
- https://bugs.php.net/bug.php?id=72730
- https://github.com/php/php-src/commit/1bd103df00f49cf4d4ade2cfe3f456ac058a4eae?w=1
- https://security.gentoo.org/glsa/201611-22
- https://www.tenable.com/security/tns-2016-19
- https://www.php.net/ChangeLog-7.php#7.0.10 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2016-7127?
CVE-2016-7127 has a medium severity rating due to its potential to cause a denial of service through out-of-bounds writes.
How do I fix CVE-2016-7127?
To resolve CVE-2016-7127, upgrade your PHP version to at least 5.6.25 or 7.0.10.
Which versions of PHP are affected by CVE-2016-7127?
CVE-2016-7127 affects PHP versions prior to 5.6.25 and 7.x before 7.0.10.
What impact does CVE-2016-7127 have on my system?
CVE-2016-7127 can lead to denial of service due to improper handling of gamma values in image processing.
Is CVE-2016-7127 a code execution vulnerability?
No, CVE-2016-7127 primarily results in denial of service and does not allow for arbitrary code execution.
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- version/php/7.0.0
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- version/php/7.0.2
- version/php/7.0.3
- version/php/7.0.4
- version/php/7.0.5
- version/php/7.0.6
- version/php/7.0.7
- version/php/7.0.8
- version/php/7.0.9