SuSE 11 Security Update : ruby (SAT Patch Number 1073)

high Nessus Plugin ID 41452
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote SuSE 11 host is missing one or more security updates.

Description

This ruby update improves return value checks for openssl function OCSP_basic_verify() (CVE-2009-0642) which allowed an attacker to use revoked certificates.

The entropy of DNS identifiers was increased (CVE-2008-3905) to avaid spoofing attacks.

The code for parsing XML data was vulnerable to a denial of service bug. (CVE-2008-3790)

An attack on algorithm complexity was possible in function WEBrick::HTTP::DefaultFileHandler() while parsing HTTP requests (CVE-2008-3656) as well as by using the regex engine (CVE-2008-3443) causing high CPU load.

Ruby's access restriction code (CVE-2008-3655) as well as safe-level handling using function DL.dlopen() (CVE-2008-3657) and big decimal handling (CVE-2009-1904) was improved.

Bypassing HTTP basic authentication (authenticate_with_http_digest) is not possible anymore.

Solution

Apply SAT patch number 1073.

See Also

https://bugzilla.novell.com/show_bug.cgi?id=415678

https://bugzilla.novell.com/show_bug.cgi?id=420084

https://bugzilla.novell.com/show_bug.cgi?id=423234

https://bugzilla.novell.com/show_bug.cgi?id=478019

https://bugzilla.novell.com/show_bug.cgi?id=499253

https://bugzilla.novell.com/show_bug.cgi?id=509914

https://bugzilla.novell.com/show_bug.cgi?id=511568

http://support.novell.com/security/cve/CVE-2008-3443.html

http://support.novell.com/security/cve/CVE-2008-3655.html

http://support.novell.com/security/cve/CVE-2008-3656.html

http://support.novell.com/security/cve/CVE-2008-3657.html

http://support.novell.com/security/cve/CVE-2008-3790.html

http://support.novell.com/security/cve/CVE-2008-3905.html

http://support.novell.com/security/cve/CVE-2009-0642.html

http://support.novell.com/security/cve/CVE-2009-1904.html

Plugin Details

Severity: High

ID: 41452

File Name: suse_11_ruby-090703.nasl

Version: 1.15

Type: local

Agent: unix

Published: 9/24/2009

Updated: 1/14/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 6.6

CVSS v2

Risk Factor: High

Base Score: 7.8

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:11:ruby, p-cpe:/a:novell:suse_linux:11:ruby-doc-html, p-cpe:/a:novell:suse_linux:11:ruby-tk, cpe:/o:novell:suse_linux:11

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

Patch Publication Date: 7/3/2009

Reference Information

CVE: CVE-2008-3443, CVE-2008-3655, CVE-2008-3656, CVE-2008-3657, CVE-2008-3790, CVE-2008-3905, CVE-2009-0642, CVE-2009-1904

CWE: 20, 189, 264, 287, 399