CVE-2021-34549

HIGH

7.5

Description

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.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published6/29/2021

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

torproject:tor

Weaknesses (CWE)

CWE-400

References

https://blog.torproject.org/node/2041(cve@mitre.org)

https://gitlab.torproject.org/tpo/core/tor/-/issues/40391(cve@mitre.org)

https://security.gentoo.org/glsa/202107-25(cve@mitre.org)

https://blog.torproject.org/node/2041(af854a3a-2127-422b-91ae-364da2661108)

https://gitlab.torproject.org/tpo/core/tor/-/issues/40391(af854a3a-2127-422b-91ae-364da2661108)

https://security.gentoo.org/glsa/202107-25(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.