Allocation of Resources Without Limits or Throttling Affecting tor package, versions <0.3.5.8-r0


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.77% (82nd percentile)

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  • Snyk IDSNYK-ALPINE321-TOR-8489697
  • published6 Dec 2024
  • disclosed21 Feb 2019

Introduced: 21 Feb 2019

CVE-2019-8955  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade Alpine:3.21 tor to version 0.3.5.8-r0 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 Alpine. See How to fix? for Alpine:3.21 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.