Out-of-Bounds Affecting tor package, versions <0.2.3.20-rc-1


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
3.76% (92nd percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-TOR-370735
  • published26 Aug 2012
  • disclosed26 Aug 2012

Introduced: 26 Aug 2012

CVE-2012-3518  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

Upgrade Debian:unstable tor to version 0.2.3.20-rc-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:unstable relevant fixed versions and status.

The networkstatus_parse_vote_from_string function in routerparse.c in Tor before 0.2.2.38 does not properly handle an invalid flavor name, which allows remote attackers to cause a denial of service (out-of-bounds read and daemon crash) via a crafted (1) vote document or (2) consensus document.

CVSS Scores

version 3.1