Solution
Please Install the Updated Packages.
Insight
A denial of service condition was found in Ruby's regular expression engine. If a Ruby script tried to process a large amount of data via a regular expression, it could cause Ruby to enter an infinite loop and crash (CVE-2008-3443).
A number of flaws were found in Ruby that could allow an attacker to create a carefully crafted script that could allow for the bypass of certain safe-level restrictions (CVE-2008-3655).
A denial of service vulnerability was found in Ruby's HTTP server toolkit, WEBrick. A remote attacker could send a specially-crafted HTTP request to a WEBrick server that would cause it to use an excessive amount of CPU time (CVE-2008-3656).
An insufficient taintness check issue was found in Ruby's DL module, a module that provides direct access to the C language functions.
This flaw could be used by an attacker to bypass intended safe-level restrictions by calling external C functions with the arguments from an untrusted tainted input (CVE-2008-3657).
A denial of service condition in Ruby's XML document parsing module (REXML) could cause a Ruby application using the REXML module to use an excessive amount of CPU and memory via XML documents with large XML entitity definitions recursion (CVE-2008-3790).
The Ruby DNS resolver library used predictable transaction IDs and a fixed source port when sending DNS requests. This could be used by a remote attacker to spoof a malicious reply to a DNS query (CVE-2008-3905).
The updated packages have been patched to correct these issues.
Affected
ruby on Mandriva Linux 2008.0,
Mandriva Linux 2008.0/X86_64,
Mandriva Linux 2008.1,
Mandriva Linux 2008.1/X86_64
Severity
Classification
-
CVE CVE-2008-3443, CVE-2008-3655, CVE-2008-3656, CVE-2008-3657, CVE-2008-3790, CVE-2008-3905 -
CVSS Base Score: 7.8
AV:N/AC:L/Au:N/C:N/I:N/A:C
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