CVE-2016-7480: Buffer Overflow
First published: Wed Jan 11 2017(Updated: )
The SplObjectStorage unserialize implementation in ext/spl/spl_observer.c in PHP before 7.0.12 does not verify that a key is an object, which allows remote attackers to execute arbitrary code or cause a denial of service (uninitialized memory access) via crafted serialized data.
Credit: cve@checkpoint.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| PHP | >=7.0.0<7.0.11 | |
| IBM Data ONTAP |
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Reference Links
- http://blog.checkpoint.com/2016/12/27/check-point-discovers-three-zero-day-vulnerabilities-web-programming-language-php-7
- http://blog.checkpoint.com/wp-content/uploads/2016/12/PHP_Technical_Report.pdf
- http://php.net/ChangeLog-7.php
- http://www.securityfocus.com/bid/95152
- https://bugs.php.net/bug.php?id=73257
- https://github.com/php/php-src/commit/61cdd1255d5b9c8453be71aacbbf682796ac77d4
- https://security.netapp.com/advisory/ntap-20180112-0001/
- https://www.youtube.com/watch?v=LDcaPstAuPk
Frequently Asked Questions
What is the severity of CVE-2016-7480?
CVE-2016-7480 is considered a critical vulnerability due to its potential for remote code execution and denial of service.
How do I fix CVE-2016-7480?
To mitigate CVE-2016-7480, update PHP to version 7.0.12 or later.
What versions of PHP are affected by CVE-2016-7480?
CVE-2016-7480 affects PHP versions before 7.0.12, including all versions from 7.0.0 to 7.0.11.
Can CVE-2016-7480 be exploited remotely?
Yes, CVE-2016-7480 can be exploited remotely through crafted serialized data.
What kind of attacks can CVE-2016-7480 allow?
CVE-2016-7480 can lead to arbitrary code execution or result in denial of service due to uninitialized memory access.
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