CVE-2011-0491

CVSS V2 Medium 5 CVSS V3 None
Description
The tor_realloc function in Tor before 0.2.1.29 and 0.2.2.x before 0.2.2.21-alpha does not validate a certain size value during memory allocation, which might allow remote attackers to cause a denial of service (daemon crash) via unspecified vectors, related to "underflow errors."
Overview
  • CVE ID
  • CVE-2011-0491
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Modified
  • Published Version
  • 2011-01-19T12:00:20
  • Last Modified Date
  • 2017-08-17T01:33:34
Weakness Enumerations
CWE URL
CWE-20 http://cwe.mitre.org/data/definitions/20.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:tor:tor:*:*:*:*:*:*:*:* 1 OR 0.2.1.28
cpe:2.3:a:tor:tor:0.0.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.2_pre13:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.2_pre14:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.2_pre15:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.2_pre16:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.2_pre17:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.2_pre18:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.2_pre19:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.2_pre20:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.2_pre21:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.2_pre22:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.2_pre23:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.2_pre24:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.2_pre25:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.2_pre26:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.2_pre27:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.3:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.4:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.5:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.6:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.6.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.6.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.7:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.7.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.7.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.7.3:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.8:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.8.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.9:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.9.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.9.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.9.3:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.9.4:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.9.5:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.9.6:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.9.7:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.9.8:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.9.9:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.0.9.10:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.0.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.0.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.0.3:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.0.4:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.0.5:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.0.6:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.0.7:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.0.8:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.0.9:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.0.10:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.0.11:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.0.12:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.0.13:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.0.14:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.0.15:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.0.16:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.0.17:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.1:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.2:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.3:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.3:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.4:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.4:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.5:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.5:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.6:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.6:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.7:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.7:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.8:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.8:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.9:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.9:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.10:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.10:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.11:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.12:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.13:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.14:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.15:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.16:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.17:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.18:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.19:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.20:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.21:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.22:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.23:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.25:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.1.26:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.2.1:alpha-cvs:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.2.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.2.3:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.2.4:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.2.5:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.2.5:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.2.6:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.2.7:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.2.8:beta:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.2.9:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.2.10:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.2.11:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.2.12:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.2.13:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.2.14:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.2.15:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.2.16:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.2.17:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.2.18:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.2.19:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.2.30:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.1.2.31:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.1:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.2:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.3:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.4:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.5:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.6:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.7:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.8:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.9:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.10:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.11:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.12:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.13:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.14:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.15:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.16:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.17:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.18:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.19:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.20:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.21:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.22:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.23:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.24:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.25:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.26:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.27:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.28:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.29:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.29:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.30:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.30:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.31:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.31:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.32:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.33:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.34:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.0.35:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.1.1:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.1.2:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.1.3:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.1.4:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.1.5:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.1.6:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.1.7:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.1.8:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.1.9:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.1.10:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.1.11:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.1.12:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.1.12:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.1.13:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.1.14:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.1.15:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.1.16:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.1.17:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.1.18:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.1.19:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.1.20:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.1.21:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.1.22:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.1.23:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.1.24:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.1.25:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.1.26:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.1.27:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.2.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.2.1:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.2.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.2.2:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.2.3:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.2.3:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.2.4:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.2.4:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.2.5:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.2.5:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.2.6:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.2.6:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.2.7:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.2.8:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.2.9:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.2.10:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.2.11:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.2.12:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.2.13:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.2.14:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.2.15:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.2.16:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.2.17:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.2.18:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.2.19:alpha:*:*:*:*:*:* 1 OR
cpe:2.3:a:tor:tor:0.2.2.20:alpha:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
References
Reference URL Reference Tags
http://archives.seul.org/or/announce/Jan-2011/msg00000.html Patch
https://trac.torproject.org/projects/tor/ticket/2324
https://gitweb.torproject.org/tor.git/blob/refs/heads/release-0.2.2:/ChangeLog Patch
http://blog.torproject.org/blog/tor-02129-released-security-patches Patch Vendor Advisory
http://www.securityfocus.com/bid/45953
https://exchange.xforce.ibmcloud.com/vulnerabilities/64888
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2011-0491
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-0491
History
Created Old Value New Value Data Type Notes
2022-05-10 08:55:24 Added to TrackCVE