Impact

Remote code execution in case application calls unserialize() on user input containing specially crafted string.

Patches

2.0.38

Workarounds

Add the following to BatchQueryResult.php:

public function __sleep()
{
    throw new \BadMethodCallException('Cannot serialize '.__CLASS__);
}

public function __wakeup()
{
    throw new \BadMethodCallException('Cannot unserialize '.__CLASS__);
}

For more information

If you have any questions or comments about this advisory, contact us through security form.

References

• GHSA-699q-wcff-g9mj
• yiisoft/yii2@9abccb9
• https://nvd.nist.gov/vuln/detail/CVE-2020-15148
• https://github.com/FriendsOfPHP/security-advisories/blob/master/yiisoft/yii2/CVE-2020-15148.yaml
• https://www.yiiframework.com/news/303/yii-2-0-38