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Resource Exhaustion Affecting fort-validator package, versions <1.5.3-1

0.0
high

Snyk CVSS

    Attack Complexity Low
    Availability High

    Threat Intelligence

    EPSS 0.13% (48th percentile)
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NVD
7.5 high

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  • Snyk ID SNYK-DEBIAN12-FORTVALIDATOR-2327130
  • published 12 Nov 2021
  • disclosed 11 Nov 2021
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Introduced: 11 Nov 2021

CVE-2021-3909 Open this link in a new tab
CWE-400 Open this link in a new tab

How to fix?

Upgrade Debian:12 fort-validator to version 1.5.3-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream fort-validator package and not the fort-validator package as distributed by Debian. See How to fix? for Debian:12 relevant fixed versions and status.

OctoRPKI does not limit the length of a connection, allowing for a slowloris DOS attack to take place which makes OctoRPKI wait forever. Specifically, the repository that OctoRPKI sends HTTP requests to will keep the connection open for a day before a response is returned, but does keep drip feeding new bytes to keep the connection alive.