Allocation of Resources Without Limits or Throttling Affecting tor package, versions <0.3.5.8-1


Severity

Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    1.66% (88th percentile)

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  • Snyk ID SNYK-DEBIAN10-TOR-337887
  • published 21 Feb 2019
  • disclosed 21 Feb 2019

How to fix?

Upgrade Debian:10 tor to version 0.3.5.8-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tor package and not the tor package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

In Tor before 0.3.3.12, 0.3.4.x before 0.3.4.11, 0.3.5.x before 0.3.5.8, and 0.4.x before 0.4.0.2-alpha, remote denial of service against Tor clients and relays can occur via memory exhaustion in the KIST cell scheduler.