Executive Summary

Informations
Name CVE-2021-34549 First vendor Publication 2021-06-29
Vendor Cve Last vendor Modification 2022-07-12

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 7.5
Base Score 7.5 Environmental Score 7.5
impact SubScore 3.6 Temporal Score 7.5
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:P)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

An issue was discovered in Tor before 0.4.6.5, aka TROVE-2021-005. Hashing is mishandled for certain retrieval of circuit data. Consequently. an attacker can trigger the use of an attacker-chosen circuit ID to cause algorithm inefficiency.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34549

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-400 Uncontrolled Resource Consumption ('Resource Exhaustion')

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 471

Sources (Detail)

Source Url
CONFIRM https://blog.torproject.org/node/2041
GENTOO https://security.gentoo.org/glsa/202107-25
MISC https://gitlab.torproject.org/tpo/core/tor/-/issues/40391

Alert History

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Date Informations
2024-02-02 02:26:15
  • Multiple Updates
2024-02-01 12:24:06
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2023-09-05 13:20:32
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2023-09-05 01:23:37
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2023-09-02 13:19:07
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2023-09-02 01:23:58
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2023-08-12 13:25:14
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2023-08-12 01:23:12
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2023-08-11 13:17:29
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2023-08-11 01:23:58
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2023-08-06 13:15:28
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2023-08-06 01:22:57
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2023-08-04 13:15:50
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2023-08-04 01:23:18
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2023-07-14 13:15:54
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2023-07-14 01:23:06
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2023-03-29 02:18:03
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2023-03-28 12:23:19
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2022-10-11 13:07:43
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2022-10-11 01:22:46
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2022-07-13 17:27:43
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2021-09-21 00:23:08
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2021-08-05 01:43:12
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2021-07-10 12:41:25
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2021-07-06 17:22:51
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2021-06-29 17:22:51
  • First insertion