Resource Management Errors Affecting tor package, versions <0.2.3.25-1


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
4.24% (93rd percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-TOR-371062
  • published1 Jan 2013
  • disclosed1 Jan 2013

Introduced: 1 Jan 2013

CVE-2012-5573  (opens in a new tab)
CWE-399  (opens in a new tab)

How to fix?

Upgrade Debian:unstable tor to version 0.2.3.25-1 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 connection_edge_process_relay_cell function in or/relay.c in Tor before 0.2.3.25 maintains circuits even if an unexpected SENDME cell arrives, which might allow remote attackers to cause a denial of service (memory consumption or excessive cell reception rate) or bypass intended flow-control restrictions via a RELAY_COMMAND_SENDME command.

CVSS Scores

version 3.1