CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
82.4%
An issue was discovered in Symfony 2.8.0 through 2.8.50, 3.4.0 through
3.4.34, 4.2.0 through 4.2.11, and 4.3.0 through 4.3.7. The UriSigner was
subject to timing attacks. This is related to symfony/http-kernel.
github.com/symfony/symfony/commit/cccefe6a7f12e776df0665aeb77fe9294c285fbb
launchpad.net/bugs/cve/CVE-2019-18887
nvd.nist.gov/vuln/detail/CVE-2019-18887
security-tracker.debian.org/tracker/CVE-2019-18887
symfony.com/blog/cve-2019-18887-use-constant-time-comparison-in-urisigner
www.cve.org/CVERecord?id=CVE-2019-18887
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
82.4%