Detections
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Fedora 33 : tor (2021-e68317166d)

high Nessus Plugin ID 148087

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Synopsis

The remote Fedora host is missing one or more security updates.

Description

The remote Fedora 33 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2021-e68317166d advisory.

 - Tor before 0.4.5.7 allows a remote participant in the Tor directory protocol to exhaust CPU resources on a target, aka TROVE-2021-001. (CVE-2021-28089)

 - Tor before 0.4.5.7 allows a remote attacker to cause Tor directory authorities to exit with an assertion failure, aka TROVE-2021-002. (CVE-2021-28090)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected tor package.

See Also

https://bodhi.fedoraproject.org/updates/FEDORA-2021-e68317166d

Plugin Details

Severity: High

ID: 148087

File Name: fedora_2021-e68317166d.nasl

Version: 1.5

Type: local

Agent: unix

Published: 3/24/2021

Updated: 5/10/2022

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2021-28090

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS Score Source: CVE-2021-28089

Vulnerability Information

CPE: cpe:/o:fedoraproject:fedora:33, p-cpe:/a:fedoraproject:fedora:tor

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 3/16/2021

Vulnerability Publication Date: 3/19/2021

Reference Information

CVE: CVE-2021-28089, CVE-2021-28090