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CVE-2017-6920

CVE-2017-6920

EPSS 20.5%
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.
Affected products
Drupal.org · Drupal Core

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References
https://www.drupal.org/forum/newsletters/security-advisories-for-drupal-core/2017-06-21/drupal-core-multiplehttp://www.securityfocus.com/bid/99211http://www.securitytracker.com/id/1038781