Access Restriction Bypass Affecting tor package, versions <0.2.2.34-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.1% (44th percentile)

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  • Snyk IDSNYK-DEBIAN12-TOR-1561646
  • published23 Dec 2011
  • disclosed23 Dec 2011

Introduced: 23 Dec 2011

CVE-2011-2768  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade Debian:12 tor to version 0.2.2.34-1 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:12 relevant fixed versions and status.

Tor before 0.2.2.34, when configured as a client or bridge, sends a TLS certificate chain as part of an outgoing OR connection, which allows remote relays to bypass intended anonymity properties by reading this chain and then determining the set of entry guards that the client or bridge had selected.

CVSS Scores

version 3.1