CVE-2021-34549

2021-06-2900:00:00

ubuntu.com

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

5 Medium

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.002 Low

EPSS

Percentile

62.2%

JSON

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.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchtor< 0.3.2.10-1ubuntu0.2~esm2UNKNOWN
ubuntu20.04noarchtor< 0.4.2.7-1ubuntu0.1~esm1UNKNOWN
ubuntu16.04noarchtor< 0.2.9.14-1ubuntu1~16.04.3+esm1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	tor	< 0.3.2.10-1ubuntu0.2~esm2	UNKNOWN
ubuntu	20.04	noarch	tor	< 0.4.2.7-1ubuntu0.1~esm1	UNKNOWN
ubuntu	16.04	noarch	tor	< 0.2.9.14-1ubuntu1~16.04.3+esm1	UNKNOWN