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openSUSE Security Update : tor (openSUSE-2015-300)
high Nessus Plugin ID 82754
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Synopsis
The remote openSUSE host is missing a security update.Description
Tor was updated to 0.2.4.27 to fix two security issues that could be used by an attacker to crash hidden services, or crash clients visiting hidden services. Hidden services should upgrade as soon as possible.The following security issues were fixed :
- A malicious client could trigger an assertion failure and halt a hidden service. (CVE-2015-2928)
- A client could crash with an assertion failure when parsing a malformed hidden service descriptor.
(CVE-2015-2929)
This release also backports a simple improvement to make hidden services a bit less vulnerable to denial-of-service attacks :
- Introduction points no longer allow multiple INTRODUCE1 cells to arrive on the same circuit. This should make it more expensive for attackers to overwhelm hidden services with introductions.
Solution
Update the affected tor packages.See Also
Plugin Details
Severity: High
ID: 82754
File Name: openSUSE-2015-300.nasl
Version: 1.4
Type: local
Agent: unix
Family: SuSE Local Security Checks
Published: 4/14/2015
Updated: 1/19/2021
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3.6
CVSS v2
Risk Factor: Medium
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS v3
Risk Factor: High
Base Score: 7.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Vulnerability Information
CPE: cpe:/o:novell:opensuse:13.2, p-cpe:/a:novell:opensuse:tor, p-cpe:/a:novell:opensuse:tor-debugsource, cpe:/o:novell:opensuse:13.1, p-cpe:/a:novell:opensuse:tor-debuginfo
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list
Patch Publication Date: 4/6/2015
Vulnerability Publication Date: 1/24/2020
Reference Information
CVE: CVE-2015-2928, CVE-2015-2929