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    CVE-2019-18887

    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.

    Published:Nov 21, 2019
    Last Modified:Nov 21, 2024
    EPS:Nov 21, 2019
    EPSS Score:0.00813
    CVSS Score:8.1

    Affected Products

    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Sensiolabs
    Product
    Symfony

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-203 Observable Discrepancy

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-189 Black Box Reverse Engineering

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    References

    https://github.com/symfony/symfony/releases/tag/v4.3.8
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DZNXRVHDQBNZQUCNRVZICPPBFRAUWUJX/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UED22BOXTL2SSFMGYKA64ZFHGLLJG3EA/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VXEAOEANNIVYANTMOJ42NKSU6BGNBULZ/
    https://symfony.com/blog/cve-2019-18887-use-constant-time-comparison-in-urisigner
    https://symfony.com/blog/symfony-4-3-8-released
    https://github.com/symfony/symfony/releases/tag/v4.3.8
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DZNXRVHDQBNZQUCNRVZICPPBFRAUWUJX/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UED22BOXTL2SSFMGYKA64ZFHGLLJG3EA/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VXEAOEANNIVYANTMOJ42NKSU6BGNBULZ/
    https://symfony.com/blog/cve-2019-18887-use-constant-time-comparison-in-urisigner
    https://symfony.com/blog/symfony-4-3-8-released

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High