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ruby: multiple vulnerabilities

Package(s):ruby CVE #(s):CVE-2008-3655 CVE-2008-3656 CVE-2008-3657
Created:September 1, 2008 Updated:December 17, 2008
Description:

From the CVE entries:

CVE-2008-3655: Ruby 1.8.5 and earlier, 1.8.6 through 1.8.6-p286, 1.8.7 through 1.8.7-p71, and 1.9 through r18423 does not properly restrict access to critical variables and methods at various safe levels, which allows context-dependent attackers to bypass intended access restrictions via (1) untrace_var, (2) $PROGRAM_NAME, and (3) syslog at safe level 4, and (4) insecure methods at safe levels 1 through 3.

CVE-2008-3656: Algorithmic complexity vulnerability in WEBrick::HTTP::DefaultFileHandler in WEBrick in Ruby 1.8.5 and earlier, 1.8.6 through 1.8.6-p286, 1.8.7 through 1.8.7-p71, and 1.9 through r18423 allows context-dependent attackers to cause a denial of service (CPU consumption) via a crafted HTTP request that is processed by a backtracking regular expression.

CVE-2008-3657: The dl module in Ruby 1.8.5 and earlier, 1.8.6 through 1.8.6-p286, 1.8.7 through 1.8.7-p71, and 1.9 through r18423 does not check "taintness" of inputs, which allows context-dependent attackers to bypass safe levels and execute dangerous functions by accessing a library using DL.dlopen.

Alerts:
Gentoo 200812-17 ruby 2008-12-16
Red Hat RHSA-2008:0981-02 ruby 2008-12-04
Mandriva MDVSA-2008:226 ruby 2008-11-06
CentOS CESA-2008:0897 ruby 2008-10-24
CentOS CESA-2008:0896 ruby 2008-10-21
Red Hat RHSA-2008:0897-01 ruby 2008-10-21
Red Hat RHSA-2008:0896-01 ruby 2008-10-21
Red Hat RHSA-2008:0895-02 ruby 2008-10-21
Debian DSA-1652-1 ruby1.9 2008-10-12
Debian DSA-1651-1 ruby1.8 2008-10-12
Ubuntu USN-651-1 ruby1.8 2008-10-10
Fedora FEDORA-2008-8736 ruby 2008-10-09
Fedora FEDORA-2008-8738 ruby 2008-10-09
rPath rPSA-2008-0264-1 ruby 2008-08-31

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