GLSA-201507-02 : Tor: Denial of Service

high Nessus Plugin ID 84556

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Synopsis

The remote Gentoo host is missing one or more security-related patches.

Description

The remote host is affected by the vulnerability described in GLSA-201507-02 (Tor: Denial of Service)

Tor does not handle data correctly when specifically crafted data is sent, and also fails to properly verify a descriptor provided by a hidden service directory.
Impact :

A remote attacker could cause a Denial of Service condition in both a Tor client or a Tor server.
Workaround :

There is no known workaround at this time.

Solution

All Tor users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=net-misc/tor-0.2.6.7'

Plugin Details

Severity: High

ID: 84556

File Name: gentoo_GLSA-201507-02.nasl

Version: 2.4

Type: local

Family: Gentoo Local Security Checks

Published: 7/7/2015

Updated: 1/11/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 4.4

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

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 7.2

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:X/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:gentoo:linux, p-cpe:/a:gentoo:linux:tor

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Ease: No known exploits are available

Patch Publication Date: 7/6/2015

Vulnerability Publication Date: 1/24/2020

Reference Information

CVE: CVE-2015-2928, CVE-2015-2929

BID: 73932, 73938

GLSA: 201507-02

Detections

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