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SuSE 11.2 Security Update : ruby (SAT Patch Number 7386)
medium Nessus Plugin ID 65248
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Synopsis
The remote SuSE 11 host is missing one or more security updates.Description
The ruby interpreter received a fix for a security issue :- Ruby's $SAFE mechanism enables untrusted user codes to run in $SAFE >= 4 mode. This is a kind of sandboxing so some operations are restricted in that mode to protect other data outside the sandbox. (CVE-2012-4466)
The problem found was around this mechanism.
Exception#to_s, NameError#to_s, and name_err_mesg_to_s() interpreter-internal API was not correctly handling the $SAFE bits so a String object which is not tainted can destructively be marked as tainted using them. By using this an untrusted code in a sandbox can modify a formerly-untainted string destructively.
http://www.ruby-lang.org/en/news/2012/10/12/cve-2012-446 4-cve-2012-4466/
Solution
Apply SAT patch number 7386.See Also
https://bugzilla.novell.com/show_bug.cgi?id=783525
http://support.novell.com/security/cve/CVE-2012-4464.html
Plugin Details
Severity: Medium
ID: 65248
File Name: suse_11_ruby-130221.nasl
Version: 1.4
Type: local
Agent: unix
Family: SuSE Local Security Checks
Published: 3/13/2013
Updated: 1/19/2021
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3.7
CVSS v2
Risk Factor: Medium
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N
Vulnerability Information
CPE: p-cpe:/a:novell:suse_linux:11:ruby-tk, cpe:/o:novell:suse_linux:11, p-cpe:/a:novell:suse_linux:11:ruby, p-cpe:/a:novell:suse_linux:11:ruby-doc-html
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list
Patch Publication Date: 2/21/2013