CentOS Update for irb CESA-2008:0897 centos4 i386

Published: 2009-02-27 08:02:20
CVE Author: NIST National Vulnerability Database

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

Summary:
Check for the Version of irb

Affected Versions:
irb on CentOS 4

Recommendations:
Please Install the Updated Packages.

Technical Details:
Ruby is an interpreted scripting language for quick and easy object-oriented programming. The Ruby DNS resolver library, resolv.rb, used predictable transaction IDs and a fixed source port when sending DNS requests. A remote attacker could use this flaw to spoof a malicious reply to a DNS query. (CVE-2008-3905) Ruby's XML document parsing module (REXML) was prone to a denial of service attack via XML documents with large XML entity definitions recursion. A specially-crafted XML file could cause a Ruby application using the REXML module to use an excessive amount of CPU and memory. (CVE-2008-3790) An insufficient " taintness" check flaw was discovered in Ruby's DL module, which provides direct access to the C language functions. An attacker could use this flaw to bypass intended safe-level restrictions by calling external C functions with the arguments from an untrusted tainted inputs. (CVE-2008-3657) A denial of service flaw was discovered in WEBrick, Ruby's HTTP server toolkit. A remote attacker could send a specially-crafted HTTP request to a WEBrick server that would cause the server to use an excessive amount of CPU time. (CVE-2008-3656) A number of flaws were found in the safe-level restrictions in Ruby. It was possible for an attacker to create a carefully crafted malicious script that can allow the bypass of certain safe-level restrictions. (CVE-2008-3655) A denial of service flaw 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) Users of ruby should upgrade to these updated Linux Distribution Packages, which contain backported patches to resolve these issues.

Detection Type:
Linux Distribution Package

Solution Type:
Vendor Patch

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2008-3443
https://nvd.nist.gov/vuln/detail/CVE-2008-3655
https://nvd.nist.gov/vuln/detail/CVE-2008-3656
https://nvd.nist.gov/vuln/detail/CVE-2008-3657
https://nvd.nist.gov/vuln/detail/CVE-2008-3790
https://nvd.nist.gov/vuln/detail/CVE-2008-3905

References:

http://lists.centos.org/pipermail/centos-announce/2008-October/015355.html

Severity
High
CVSS Score
7.8
Published
2009-02-27
Modified
2017-07-10
Category
CentOS Local Security Checks

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