Timing Attack Affecting symfony/http-kernel package, versions >=2.8.0, <2.8.52 >=3.4.0, <3.4.35 >=4.2.0, <4.2.12 >=4.3.0, <4.3.8
Snyk CVSS
Attack Complexity
High
Threat Intelligence
EPSS
0.87% (83rd
percentile)
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Test your applications- Snyk ID SNYK-PHP-SYMFONYHTTPKERNEL-535377
- published 22 Nov 2019
- disclosed 21 Nov 2019
- credit Unknown
Introduced: 21 Nov 2019
CVE-2019-18887 Open this link in a new tabHow to fix?
Upgrade symfony/http-kernel to version 2.8.52, 3.4.35, 4.2.12, 4.3.8 or higher.
Overview
symfony/http-kernel is a Symfony component that provides a structured process for converting a Request into a Response.
Affected versions of this package are vulnerable to Timing Attack. When checking the signature of an URI (an ESI fragment URL for instance), the URISigner does not use a constant time string comparison function, resulting in a potential remote timing attack vulnerability.