CVE-2017-6920
Critical
Description
Drupal core 8 before versions 8.3.4 allows remote attackers to execute arbitrary code due to the PECL YAML parser not handling PHP objects safely during certain operations.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Drupal
PublishedAug 6, 2018
First seenAug 6, 2018
How to fix
Update
- drupal drupal8.3.4 or later
- drupal/core8.3.4 or later
- drupal/drupal8.3.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| drupal drupal | 8.0.0 ≤ v < 8.3.4 | 8.3.4 |
| drupal/corePackagist | 8.0 ≤ v < 8.3.4 | 8.3.4 |
| drupal/drupalPackagist | 8.0 ≤ v < 8.3.4 | 8.3.4 |
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