Debian DSA-4961-1 : tor - security update

high Nessus Plugin ID 152753

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Synopsis

The remote Debian host is missing a security-related update.

Description

The remote Debian 11 host has packages installed that are affected by a vulnerability as referenced in the dsa-4961 advisory.

- Tor before 0.3.5.16, 0.4.5.10, and 0.4.6.7 mishandles the relationship between batch-signature verification and single-signature verification, leading to a remote assertion failure, aka TROVE-2021-007.
(CVE-2021-38385)

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

Solution

Upgrade the tor packages.

For the stable distribution (bullseye), this problem has been fixed in version 0.4.5.10-1~deb11u1.

Plugin Details

Severity: High

ID: 152753

File Name: debian_DSA-4961.nasl

Version: 1.4

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 8/23/2021

Updated: 12/4/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2021-38385

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:tor, p-cpe:/a:debian:debian_linux:tor-geoipdb, cpe:/o:debian:debian_linux:11.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/23/2021

Vulnerability Publication Date: 8/23/2021

Reference Information

CVE: CVE-2021-38385

Detections

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