PT-2014-3339 · Openssl+3 · Openssl+4

Published 2014-01-17 · Updated 2024-06-15 · CVE-2013-7295

Positive Technologies (AI Summary)

CVSS v2.0

4.0

Medium

Base vector

AV:N/AC:H/Au:N/C:P/I:P/A:N

Name of the Vulnerable Software and Affected Versions Tor versions prior to 0.2.4.20

Description The issue affects Tor when used with OpenSSL 1.x and a specific HardwareAccel setting on Intel Sandy Bridge and Ivy Bridge platforms. It does not properly generate random numbers for relay identity keys and hidden-service identity keys. This could make it easier for remote attackers to bypass cryptographic protection mechanisms.

Recommendations For Tor versions prior to 0.2.4.20, update to version 0.2.4.20 or later to resolve the issue. As a temporary workaround, consider disabling the HardwareAccel setting on affected platforms until a patch is applied. Restrict access to relay and hidden services to minimize the risk of exploitation. Avoid using the affected Tor versions on Intel Sandy Bridge and Ivy Bridge platforms with the specific HardwareAccel setting until the issue is resolved.

Fix

Weakness Enumeration

CWE-310

Related Identifiers

ALT-PU-2014-2480

CVE-2013-7295

MGASA-2014-0059

OPENSUSE-SU-2024:10423-1

Affected Products

Alt Linux

Intel Ivy Bridge

Intel Sandy Bridge

Openssl

Tor

References · 37

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-7295 · Security Note
• http://lists.opensuse.org/opensuse-updates/2014-01/msg00095.html · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:10423-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2013-7295 · Security Note
• https://bdu.fstec.ru/vul/2015-00720 · Security Note
• https://lists.torproject.org/pipermail/tor-talk/2013-December/031483.html · Vendor Advisory
• https://advisories.mageia.org/MGASA-2014-0059.html · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-5117 · Security Note
• https://osv.dev/vulnerability/MGASA-2014-0059 · Vendor Advisory
• https://errata.altlinux.org/ALT-PU-2014-2480 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2013-7295 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2013-7295 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2013-7295 · Vendor Advisory
• https://packages.altlinux.org/ru/vuln/CVE-2013-7295 · Note
• https://suse.com/security/cve/CVE-2015-2688 · Note