7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.621 Medium
EPSS
Percentile
97.8%
CentOS Errata and Security Advisory CESA-2011:0908
Ruby is an extensible, interpreted, object-oriented, scripting language. It
has features to process text files and to do system management tasks.
A flaw was found in the way large amounts of memory were allocated on
64-bit systems when using the BigDecimal class. A context-dependent
attacker could use this flaw to cause memory corruption, causing a Ruby
application that uses the BigDecimal class to crash or, possibly, execute
arbitrary code. This issue did not affect 32-bit systems. (CVE-2011-0188)
It was found that WEBrick (the Ruby HTTP server toolkit) did not filter
terminal escape sequences from its log files. A remote attacker could use
specially-crafted HTTP requests to inject terminal escape sequences into
the WEBrick log files. If a victim viewed the log files with a terminal
emulator, it could result in control characters being executed with the
privileges of that user. (CVE-2009-4492)
A cross-site scripting (XSS) flaw was found in the way WEBrick displayed
error pages. A remote attacker could use this flaw to perform a cross-site
scripting attack against victims by tricking them into visiting a
specially-crafted URL. (CVE-2010-0541)
A flaw was found in the method for translating an exception message into a
string in the Exception class. A remote attacker could use this flaw to
bypass safe level 4 restrictions, allowing untrusted (tainted) code to
modify arbitrary, trusted (untainted) strings, which safe level 4
restrictions would otherwise prevent. (CVE-2011-1005)
Red Hat would like to thank Drew Yao of Apple Product Security for
reporting the CVE-2011-0188 and CVE-2010-0541 issues.
All Ruby users should upgrade to these updated packages, which contain
backported patches to resolve these issues.
Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2011-August/079833.html
https://lists.centos.org/pipermail/centos-announce/2011-August/079834.html
Affected packages:
irb
ruby
ruby-devel
ruby-docs
ruby-libs
ruby-mode
ruby-tcltk
Upstream details at:
https://access.redhat.com/errata/RHSA-2011:0908
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
CentOS | 4 | i386 | irb | < 1.8.1-16.el4 | irb-1.8.1-16.el4.i386.rpm |
CentOS | 4 | i386 | ruby | < 1.8.1-16.el4 | ruby-1.8.1-16.el4.i386.rpm |
CentOS | 4 | i386 | ruby-devel | < 1.8.1-16.el4 | ruby-devel-1.8.1-16.el4.i386.rpm |
CentOS | 4 | i386 | ruby-docs | < 1.8.1-16.el4 | ruby-docs-1.8.1-16.el4.i386.rpm |
CentOS | 4 | i386 | ruby-libs | < 1.8.1-16.el4 | ruby-libs-1.8.1-16.el4.i386.rpm |
CentOS | 4 | i386 | ruby-mode | < 1.8.1-16.el4 | ruby-mode-1.8.1-16.el4.i386.rpm |
CentOS | 4 | i386 | ruby-tcltk | < 1.8.1-16.el4 | ruby-tcltk-1.8.1-16.el4.i386.rpm |
CentOS | 4 | x86_64 | irb | < 1.8.1-16.el4 | irb-1.8.1-16.el4.x86_64.rpm |
CentOS | 4 | x86_64 | ruby | < 1.8.1-16.el4 | ruby-1.8.1-16.el4.x86_64.rpm |
CentOS | 4 | x86_64 | ruby-devel | < 1.8.1-16.el4 | ruby-devel-1.8.1-16.el4.x86_64.rpm |