CVE-2011-0491

Advisory lineage Upstream: 0 Downstream: 2
Modified
Published: 19 Jan 2011, 11:00
Last modified:06 Aug 2024, 21:51

Vulnerability Summary

Overall Risk (default)
low
20/100
CVSS Score
5 MEDIUM
v2.0 (nvd)
EPSS Score
1.38% LOW
1% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

19 Jan 2011, 11:00
Published
Vulnerability first disclosed
06 Aug 2024, 21:51
Last Modified
Vulnerability information updated

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."

CVSS Metrics

  • v2.0•MEDIUM•Score: 5AV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS Trends

Current EPSS score: 1.38%• Percentile: 81%

Techniques & Countermeasures

  • CWE-20•Improper Input Validation

    The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Affected Systems

  • tor•tor

    ≤ 0.2.1.28 | 0.0.2 | 0.0.2_pre13 | 0.0.2_pre14 | 0.0.2_pre15 | 0.0.2_pre16 | 0.0.2_pre17 | 0.0.2_pre18 | 0.0.2_pre19 | 0.0.2_pre20 | 0.0.2_pre21 | 0.0.2_pre22 | 0.0.2_pre23 | 0.0.2_pre24 | 0.0.2_pre25 | 0.0.2_pre26 | 0.0.2_pre27 | 0.0.3 | 0.0.4 | 0.0.5 | 0.0.6 | 0.0.6.1 | 0.0.6.2 | 0.0.7 | 0.0.7.1 | 0.0.7.2 | 0.0.7.3 | 0.0.8 | 0.0.8.1 | 0.0.9 | 0.0.9.1 | 0.0.9.2 | 0.0.9.3 | 0.0.9.4 | 0.0.9.5 | 0.0.9.6 | 0.0.9.7 | 0.0.9.8 | 0.0.9.9 | 0.0.9.10 | 0.1.0.1 | 0.1.0.2 | 0.1.0.3 | 0.1.0.4 | 0.1.0.5 | 0.1.0.6 | 0.1.0.7 | 0.1.0.8 | 0.1.0.9 | 0.1.0.10 | 0.1.0.11 | 0.1.0.12 | 0.1.0.13 | 0.1.0.14 | 0.1.0.15 | 0.1.0.16 | 0.1.0.17 | 0.1.1 | 0.1.1.1 | 0.1.1.1:alpha | 0.1.1.2 | 0.1.1.2:alpha | 0.1.1.3 | 0.1.1.3:alpha | 0.1.1.4 | 0.1.1.4:alpha | 0.1.1.5 | 0.1.1.5:alpha | 0.1.1.6 | 0.1.1.6:alpha | 0.1.1.7 | 0.1.1.7:alpha | 0.1.1.8 | 0.1.1.8:alpha | 0.1.1.9 | 0.1.1.9:alpha | 0.1.1.10 | 0.1.1.10:alpha | 0.1.1.11 | 0.1.1.12 | 0.1.1.13 | 0.1.1.14 | 0.1.1.15 | 0.1.1.16 | 0.1.1.17 | 0.1.1.18 | 0.1.1.19 | 0.1.1.20 | 0.1.1.21 | 0.1.1.22 | 0.1.1.23 | 0.1.1.25 | 0.1.1.26 | 0.1.2.1:alpha-cvs | 0.1.2.2 | 0.1.2.3:alpha | 0.1.2.4 | 0.1.2.5 | 0.1.2.5:alpha | 0.1.2.6:alpha | 0.1.2.7:alpha | 0.1.2.8:beta | 0.1.2.9 | 0.1.2.10 | 0.1.2.11 | 0.1.2.12 | 0.1.2.13 | 0.1.2.14 | 0.1.2.15 | 0.1.2.16 | 0.1.2.17 | 0.1.2.18 | 0.1.2.19 | 0.1.2.30 | 0.1.2.31 | 0.2.0.1:alpha | 0.2.0.2:alpha | 0.2.0.3:alpha | 0.2.0.4:alpha | 0.2.0.5:alpha | 0.2.0.6:alpha | 0.2.0.7:alpha | 0.2.0.8:alpha | 0.2.0.9:alpha | 0.2.0.10:alpha | 0.2.0.11:alpha | 0.2.0.12:alpha | 0.2.0.13:alpha | 0.2.0.14:alpha | 0.2.0.15:alpha | 0.2.0.16:alpha | 0.2.0.17:alpha | 0.2.0.18:alpha | 0.2.0.19:alpha | 0.2.0.20:alpha | 0.2.0.21:alpha | 0.2.0.22:alpha | 0.2.0.23:alpha | 0.2.0.24:alpha | 0.2.0.25:alpha | 0.2.0.26:alpha | 0.2.0.27:alpha | 0.2.0.28:alpha | 0.2.0.29 | 0.2.0.29:alpha | 0.2.0.30 | 0.2.0.30:alpha | 0.2.0.31 | 0.2.0.31:alpha | 0.2.0.32:alpha | 0.2.0.33 | 0.2.0.34:alpha | 0.2.0.35 | 0.2.1.1:alpha | 0.2.1.2:alpha | 0.2.1.3:alpha | 0.2.1.4:alpha | 0.2.1.5:alpha | 0.2.1.6:alpha | 0.2.1.7:alpha | 0.2.1.8:alpha | 0.2.1.9:alpha | 0.2.1.10:alpha | 0.2.1.1.1:alpha | 0.2.1.12 | 0.2.1.1.2:alpha | 0.2.1.13 | 0.2.1.14 | 0.2.1.15 | 0.2.1.16 | 0.2.1.17 | 0.2.1.18 | 0.2.1.19 | 0.2.1.20 | 0.2.1.21 | 0.2.1.22 | 0.2.1.23 | 0.2.1.24 | 0.2.1.25 | 0.2.1.26 | 0.2.1.27 | 0.2.2.1 | 0.2.2.1:alpha | 0.2.2.2 | 0.2.2.2:alpha | 0.2.2.3 | 0.2.2.3:alpha | 0.2.2.4 | 0.2.2.4:alpha | 0.2.2.5 | 0.2.2.5:alpha | 0.2.2.6 | 0.2.2.6:alpha | 0.2.2.7:alpha | 0.2.2.8:alpha | 0.2.2.9:alpha | 0.2.2.10:alpha | 0.2.2.11:alpha | 0.2.2.12:alpha | 0.2.2.13:alpha | 0.2.2.14:alpha | 0.2.2.15:alpha | 0.2.2.16:alpha | 0.2.2.17:alpha | 0.2.2.18:alpha | 0.2.2.19:alpha | 0.2.2.20:alpha

References (6)