Cryptographic Issues Affecting tor package, versions <0.2.4.20-1


Severity

Recommended
low

Based on Debian security rating

    Threat Intelligence

    EPSS
    0.18% (56th percentile)

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  • Snyk ID SNYK-DEBIAN10-TOR-371005
  • published 17 Jan 2014
  • disclosed 17 Jan 2014

How to fix?

Upgrade Debian:10 tor to version 0.2.4.20-1 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:10 relevant fixed versions and status.

Tor before 0.2.4.20, when OpenSSL 1.x is used in conjunction with a certain HardwareAccel setting on Intel Sandy Bridge and Ivy Bridge platforms, does not properly generate random numbers for (1) relay identity keys and (2) hidden-service identity keys, which might make it easier for remote attackers to bypass cryptographic protection mechanisms via unspecified vectors.

CVSS Scores

version 3.1
Expand this section

NVD

4.8 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    Low
  • Integrity (I)
    Low
  • Availability (A)
    None