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CVE-2011-0491

CVE information

Published

11 years ago

Last Modified

5 years ago

CVSSv2.0 Severity

Medium

Impact Analysis

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.".

CVSSv2.0 Score

Severity
Medium
Base Score
5/10
Exploit Score
10/10
Access Vector
Network
Access Complexity
Low
Authentication Required
None
Impact Score
2.9/10
Confidentiality Impact
None
Availability Impact
Partial
Integrity Impact
None

Products Affected

CPE Affected Vulnerable Excluding Edit
cpe:2.3:a:tor:tor:0.2.1.10:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.2.17:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.6:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.1.26:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.2:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.9:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.6.2:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.2.8:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.2_pre24:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.22:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.1.8:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.2_pre16:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.30:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.2.18:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.6:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.9.8:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.2.11:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.23:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.9.2:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.2.5:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.11:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.2.10:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.19:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.9:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.0.7:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.5:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.9.10:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.1.13:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.31:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.25:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.1.19:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.28:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.17:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.2.16:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.2.5:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.26:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.0.12:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.0.1:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.8:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.2.5:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.1.5:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.14:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.35:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.1:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.0.5:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.0.8:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.7:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.9.3:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.17:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.0.10:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.0.2:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.9.5:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.2_pre17:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.1.17:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.1.25:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.26:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.19:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.2.9:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.2.14:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.9:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.9.9:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.2.1:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.2.2:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:*:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.1.3:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.15:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.8:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.7:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.3:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.4:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.1.12:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.1.27:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.1.9:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.24:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.18:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.9:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.2:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.2.11:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.2.3:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.2:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.21:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.15:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.16:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.3:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.0.15:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.3:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.9.4:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.2_pre22:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.2_pre23:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.2.2:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.1.14:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.1.22:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.1.23:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.1.4:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.29:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.12:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.2.7:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.2.19:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.8:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.12:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.7:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.10:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.0.3:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.6.1:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.2_pre19:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.2.6:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.2.4:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.5:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.2.1:alpha-cvs:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.4:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.0.6:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.7.1:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.2_pre26:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.2:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.2.6:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.2.14:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.2.3:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.2.6:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.2.19:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.2.3:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.1.18:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.1.6:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.1.7:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.32:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.33:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.27:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.2.15:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.18:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.14:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.0.13:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.0.14:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.6:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.2_pre21:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.2_pre14:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.2.12:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.1.12:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.1.20:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.1.21:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.31:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.34:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.6:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.1.11:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.1.2:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.16:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.1:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.2.2:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.2.17:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.3:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.20:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.5:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.0.16:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.7.3:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.4:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.9.7:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.2_pre15:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.2.13:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.2.10:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.2.18:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.2.1:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.1.15:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.29:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.23:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.30:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.21:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.13:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.5:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.2.8:beta:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.7:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.1:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.10:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.11:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.0.4:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.2_pre25:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.9.1:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.2_pre20:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.2.7:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.2.5:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.2.31:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.2.30:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.25:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.22:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.0.17:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.7.2:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.2_pre27:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.2_pre18:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.2.20:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.2.4:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.2.16:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.1.1:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.1.16:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.1.24:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.20:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.0.10:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.2.12:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.2.13:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.4:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.13:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.1.8:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.0.11:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.1.0.9:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.8.1:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.9.6:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.0.2_pre13:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.2.4:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.2.9:alpha:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:tor:tor:0.2.2.15:alpha:*:*:*:*:*:*
  Yes
- -