Use After Free Affecting php7 package, versions <7.2.8-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ALPINE312-PHP7-587807
- published26 Jun 2018
- disclosed26 Jun 2018
Introduced: 26 Jun 2018
CVE-2018-12882 (opens in a new tab)How to fix?
Upgrade Alpine:3.12 php7 to version 7.2.8-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream php7 package and not the php7 package as distributed by Alpine.
See How to fix? for Alpine:3.12 relevant fixed versions and status.
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.
References
- https://bugs.php.net/bug.php?id=76409
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12882
- https://security.netapp.com/advisory/ntap-20181109-0001/
- http://www.securityfocus.com/bid/104551
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-12882
- https://usn.ubuntu.com/3702-1/
- https://usn.ubuntu.com/3702-2/