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

High Nessus Plugin ID 41452

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VPR Score: 6.6

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: 1.14

Type: local

Agent: unix

Published: 2009/09/24

Updated: 2019/10/25

Dependencies: 12634

Risk Information

Risk Factor: High

VPR Score: 6.6

CVSS v2.0

Base Score: 7.8

Vector: CVSS2#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: 2009/07/03

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