CVE-2018-12882: Use After Free
First published: Tue Jun 26 2018(Updated: )
exif_read_from_impl in ext/exif/exif.c in PHP 7.2.x through 7.2.7 allows attackers to trigger a use-after-free (in exif_read_from_file) because it closes a stream that it is not responsible for closing. The vulnerable code is reachable through the PHP exif_read_data function.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/php5 | ||
| debian/php7.0 | ||
| debian/php7.1 | ||
| PHP | <7.2.8 | 7.2.8 |
| PHP | >=7.2.0<=7.2.7 | |
| Ubuntu | =18.04 | |
| NetApp Storage Automation Store |
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Reference Links
- http://www.securityfocus.com/bid/104551
- https://bugs.php.net/bug.php?id=76409
- https://security.netapp.com/advisory/ntap-20181109-0001/
- https://usn.ubuntu.com/3702-1/
- https://usn.ubuntu.com/3702-2/
- https://launchpad.net/bugs/cve/CVE-2018-12882
- https://www.php.net/ChangeLog-7.php#7.2.8 (Advisory)
- https://git.php.net/?p=php-src.git;a=commit;h=3fdde65617e9f954e2c964768aac8831005497e5
- https://security-tracker.debian.org/tracker/CVE-2018-12882
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12882
- https://nvd.nist.gov/vuln/detail/CVE-2018-12882
- https://ubuntu.com/security/CVE-2018-12882
Frequently Asked Questions
What is the severity of CVE-2018-12882?
CVE-2018-12882 has been identified as a medium severity vulnerability due to the potential for a use-after-free condition that may lead to arbitrary code execution.
How do I fix CVE-2018-12882?
To fix CVE-2018-12882, upgrade to PHP version 7.2.8 or later.
What versions of PHP are affected by CVE-2018-12882?
CVE-2018-12882 affects PHP versions 7.2.0 through 7.2.7.
What is the nature of the vulnerability described in CVE-2018-12882?
CVE-2018-12882 is a use-after-free vulnerability in the exif_read_from_impl function within PHP's EXIF processing.
Is CVE-2018-12882 present in other PHP versions aside from 7.2?
CVE-2018-12882 specifically affects PHP version 7.2.x and does not affect older versions like PHP 5.x or PHP 7.0 and 7.1.
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