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The remote Oracle Linux host is missing one or more security updates.
From Red Hat Security Advisory 2008:0561 :
Updated ruby packages that fix several security issues are now
available for Red Hat Enterprise Linux 4 and 5.
This update has been rated as having moderate security impact by the
Red Hat Security Response Team.
Ruby is an interpreted scripting language for quick and easy
Multiple integer overflows leading to a heap overflow were discovered
in the array- and string-handling code used by Ruby. An attacker could
use these flaws to crash a Ruby application or, possibly, execute
arbitrary code with the privileges of the Ruby application using
untrusted inputs in array or string operations. (CVE-2008-2376,
CVE-2008-2662, CVE-2008-2663, CVE-2008-2725, CVE-2008-2726)
It was discovered that Ruby used the alloca() memory allocation
function in the format (%) method of the String class without properly
restricting maximum string length. An attacker could use this flaw to
crash a Ruby application or, possibly, execute arbitrary code with the
privileges of the Ruby application using long, untrusted strings as
format strings. (CVE-2008-2664)
Red Hat would like to thank Drew Yao of the Apple Product Security
team for reporting these issues.
Users of Ruby should upgrade to these updated packages, which contain
a backported patch to resolve these issues.
See also :
Update the affected ruby packages.
Risk factor :
Critical / CVSS Base Score : 10.0
CVSS Temporal Score : 8.7
Public Exploit Available : false
Family: Oracle Linux Local Security Checks
Nessus Plugin ID: 67716 ()
Bugtraq ID: 2990330036
CVE ID: CVE-2008-2376CVE-2008-2662CVE-2008-2663CVE-2008-2664CVE-2008-2725CVE-2008-2726
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