Mandriva Linux Security Advisory : tor (MDVSA-2015:205)

medium Nessus Plugin ID 83097

Synopsis

The remote Mandriva Linux host is missing a security update.

Description

Updated tor packages fix security vulnerabilities :

disgleirio discovered that a malicious client could trigger an assertion failure in a Tor instance providing a hidden service, thus rendering the service inaccessible (CVE-2015-2928).

DonnchaC discovered that Tor clients would crash with an assertion failure upon parsing specially crafted hidden service descriptors (CVE-2015-2929).

Introduction points would accept multiple INTRODUCE1 cells on one circuit, making it inexpensive for an attacker to overload a hidden service with introductions. Introduction points now no longer allow multiple cells of that type on the same circuit.

The tor package has been updated to version 0.2.4.27, fixing these issues.

Solution

Update the affected tor package.

See Also

http://advisories.mageia.org/MGASA-2015-0151.html

Plugin Details

Severity: Medium

ID: 83097

File Name: mandriva_MDVSA-2015-205.nasl

Version: 2.4

Type: local

Published: 4/28/2015

Updated: 1/14/2021

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 4.3

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

Temporal Vector: E:ND/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:mandriva:linux:tor, cpe:/o:mandriva:business_server:1

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

Exploit Ease: No known exploits are available

Patch Publication Date: 4/27/2015

Reference Information

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

BID: 73932, 73938

MDVSA: 2015:205