PT-2011-2392 · Tor · Tor

Debuger · Published 2011-01-19 · Updated 2017-08-17 · CVE-2011-0493

Positive Technologies (AI Summary)

CVSS v2.0

5.0

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Tor versions prior to 0.2.1.29 Tor versions 0.2.2.x prior to 0.2.2.21-alpha

Description The issue might allow remote attackers to cause a denial of service, resulting in an assertion failure and daemon exit. This is related to vectors involving malformed router caches and improper handling of integer values.

Recommendations For Tor versions prior to 0.2.1.29, update to version 0.2.1.29 or later. For Tor versions 0.2.2.x prior to 0.2.2.21-alpha, update to version 0.2.2.21-alpha or later.

Fix

DoS

Weakness Enumeration

CWE-189

Related Identifiers

CVE-2011-0493

DSA-2148-1

Affected Products

Tor

References · 11

• https://osv.dev/vulnerability/CVE-2011-0493 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2011-0493 · Security Note
• http://archives.seul.org/or/announce/Jan-2011/msg00000.html · Patch
• http://blog.torproject.org/blog/tor-02129-released-security-patches · Patch
• https://gitweb.torproject.org/tor.git/blob/refs/heads/release-0.2.2:/ChangeLog · Patch
• https://security-tracker.debian.org/tracker/CVE-2011-0493 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2011-0493 · Vendor Advisory
• http://securityfocus.com/bid/45953 · Note
• https://exchange.xforce.ibmcloud.com/vulnerabilities/64864 · Note
• http://xforce.iss.net/xforce/xfdb/64864 · Note
• https://trac.torproject.org/projects/tor/ticket/2352 · Note