medium
4
CWE
310
Advisory Published
Updated

CVE-2013-7295

First published: Fri Jan 17 2014(Updated: )

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.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Tor Project Tor<=0.2.4.19
Tor Project Tor=0.2.4.1-alpha
Tor Project Tor=0.2.4.2-alpha
Tor Project Tor=0.2.4.3-alpha
Tor Project Tor=0.2.4.4-alpha
Tor Project Tor=0.2.4.5-alpha
Tor Project Tor=0.2.4.6-alpha
Tor Project Tor=0.2.4.7-alpha
Tor Project Tor=0.2.4.8-alpha
Tor Project Tor=0.2.4.9-alpha
Tor Project Tor=0.2.4.10-alpha
Tor Project Tor=0.2.4.11-alpha
Tor Project Tor=0.2.4.12-alpha
Tor Project Tor=0.2.4.13-alpha
Tor Project Tor=0.2.4.14-alpha
Tor Project Tor=0.2.4.15-rc
Tor Project Tor=0.2.4.16-rc
Tor Project Tor=0.2.4.17-rc
Tor Project Tor=0.2.4.18-rc

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2013-7295?

    CVE-2013-7295 has been classified as a moderate severity vulnerability due to its impact on cryptographic key generation.

  • How do I fix CVE-2013-7295?

    To fix CVE-2013-7295, upgrade to Tor version 0.2.4.20 or later.

  • Which versions of Tor are affected by CVE-2013-7295?

    CVE-2013-7295 affects all Tor versions prior to 0.2.4.20, including numerous alpha and release candidate versions.

  • What platforms are impacted by CVE-2013-7295?

    CVE-2013-7295 specifically affects Intel Sandy Bridge and Ivy Bridge platforms when using certain OpenSSL configurations.

  • What types of keys are vulnerable in CVE-2013-7295?

    CVE-2013-7295 affects the generation of relay identity keys and hidden-service identity keys.

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