NULL Pointer Dereference Affecting tor package, versions <0.3.2.10-r0


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.5% (77th percentile)

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  • Snyk IDSNYK-ALPINE321-TOR-8489972
  • published6 Dec 2024
  • disclosed5 Mar 2018

Introduced: 5 Mar 2018

CVE-2018-0490  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Alpine:3.21 tor to version 0.3.2.10-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.

An issue was discovered in Tor before 0.2.9.15, 0.3.1.x before 0.3.1.10, and 0.3.2.x before 0.3.2.10. The directory-authority protocol-list subprotocol implementation allows remote attackers to cause a denial of service (NULL pointer dereference and directory-authority crash) via a misformatted relay descriptor that is mishandled during voting.