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CVE-2011-0188

Status Candidate

Overview

The VpMemAlloc function in bigdecimal.c in the BigDecimal class in Ruby 1.9.2-p136 and earlier, as used on Apple Mac OS X before 10.6.7 and other platforms, does not properly allocate memory, which allows context-dependent attackers to execute arbitrary code or cause a denial of service (application crash) via vectors involving creation of a large BigDecimal value within a 64-bit process, related to an "integer truncation issue."

Related Files

Gentoo Linux Security Advisory 201412-27
Posted Dec 15, 2014
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201412-27 - Multiple vulnerabilities have been found in Ruby, allowing context-dependent attackers to cause a Denial of Service condition. Versions less than 2.0.0_p598 are affected.

tags | advisory, denial of service, vulnerability, ruby
systems | linux, gentoo
advisories | CVE-2011-0188, CVE-2011-1004, CVE-2011-1005, CVE-2011-4815, CVE-2012-4481, CVE-2012-5371, CVE-2013-0269, CVE-2013-1821, CVE-2013-4164, CVE-2014-8080, CVE-2014-8090
MD5 | 813b38bb3f2ea9ccac81d5704af95024
Ubuntu Security Notice USN-1377-1
Posted Feb 28, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1377-1 - Drew Yao discovered that the WEBrick HTTP server was vulnerable to cross-site scripting attacks when displaying error pages. A remote attacker could use this flaw to run arbitrary web script. Drew Yao discovered that Ruby's BigDecimal module did not properly allocate memory on 64-bit platforms. An attacker could use this flaw to cause a denial of service or possibly execute arbitrary code with user privileges. Various other issues were also addressed.

tags | advisory, remote, web, denial of service, arbitrary, xss, ruby
systems | linux, ubuntu
advisories | CVE-2010-0541, CVE-2011-0188, CVE-2011-1004, CVE-2011-1005, CVE-2011-2686, CVE-2011-2705, CVE-2011-4815, CVE-2010-0541, CVE-2011-0188, CVE-2011-1004, CVE-2011-1005, CVE-2011-2686, CVE-2011-2705, CVE-2011-4815
MD5 | 96e246b81f447daeed7e88c291d1bc26
Red Hat Security Advisory 2011-0910-01
Posted Jun 28, 2011
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2011-0910-01 - 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. A race condition flaw was found in the remove system entries method in the FileUtils module. If a local user ran a Ruby script that uses this method, a local attacker could use this flaw to delete arbitrary files and directories accessible to that user via a symbolic link attack. Various other issues were also addressed.

tags | advisory, arbitrary, local, ruby
systems | linux, redhat
advisories | CVE-2011-0188, CVE-2011-1004, CVE-2011-1005
MD5 | 284cb759f0b3fbe4cafb951d0eadef6d
Red Hat Security Advisory 2011-0909-01
Posted Jun 28, 2011
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2011-0909-01 - 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. A race condition flaw was found in the remove system entries method in the FileUtils module. If a local user ran a Ruby script that uses this method, a local attacker could use this flaw to delete arbitrary files and directories accessible to that user via a symbolic link attack. Various other issues were also addressed.

tags | advisory, arbitrary, local, ruby
systems | linux, redhat
advisories | CVE-2009-4492, CVE-2010-0541, CVE-2011-0188, CVE-2011-1004, CVE-2011-1005
MD5 | 067959c7597a5e9df47ef8d0dd1e3bc5
Red Hat Security Advisory 2011-0908-01
Posted Jun 28, 2011
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2011-0908-01 - 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. It was found that WEBrick 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. Various other issues were also addressed.

tags | advisory, remote, web, arbitrary, ruby
systems | linux, redhat
advisories | CVE-2009-4492, CVE-2010-0541, CVE-2011-0188, CVE-2011-1005
MD5 | df186f6785dcd15afd8d2ed50e603201
Mandriva Linux Security Advisory 2011-098
Posted May 23, 2011
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2011-098 - Cross-site scripting vulnerability in the WEBrick HTTP server in Ruby allows remote attackers to inject arbitrary web script or HTML via a crafted URI that triggers a UTF-7 error page. The safe-level feature in Ruby allows context-dependent attackers to modify strings via the Exception#to_s method, as demonstrated by changing an intended pathname. The VpMemAlloc function in bigdecimal.c in the BigDecimal class in Ruby does not properly allocate memory, which allows context-dependent attackers to execute arbitrary code or cause a denial of service via vectors involving creation of a large BigDecimal value within a 64-bit process, related to an integer truncation issue. The updated packages have been patched to correct this issue.

tags | advisory, remote, web, denial of service, arbitrary, xss, ruby
systems | linux, mandriva
advisories | CVE-2010-0541, CVE-2011-1005, CVE-2011-0188
MD5 | bf9c5c468d4c6b83ad35c7574a0a9f91
Mandriva Linux Security Advisory 2011-097
Posted May 23, 2011
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2011-097 - Cross-site scripting vulnerability in the WEBrick HTTP server in Ruby allows remote attackers to inject arbitrary web script or HTML via a crafted URI that triggers a UTF-7 error page. The FileUtils.remove_entry_secure method in Ruby allows local users to delete arbitrary files via a symlink attack. The safe-level feature in Ruby allows context-dependent attackers to modify strings via the Exception#to_s method, as demonstrated by changing an intended pathname. The VpMemAlloc function in bigdecimal.c in the BigDecimal class in Ruby does not properly allocate memory, which allows context-dependent attackers to execute arbitrary code or cause a denial of service via vectors involving creation of a large BigDecimal value within a 64-bit process, related to an integer truncation issue.

tags | advisory, remote, web, denial of service, arbitrary, local, xss, ruby
systems | linux, mandriva
advisories | CVE-2010-0541, CVE-2011-1004, CVE-2011-1005, CVE-2011-0188
MD5 | 4d40ec180f11e6f686d6e8c226b68118
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