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CVE-2011-0188

The VpMemAlloc function in bigdecimal.c in the BigDecimal class in Ruby 1.9.2-p136 and earlier,...

6.8 MediumFix available

CVE-2011-0188 is a medium vulnerability (CVSS 6.8) in Ruby-lang Ruby, published March 23, 2011. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.02%, the 87th percentile. Fixed in ruby1.9.1 1.9.2.0-2+deb6u4.

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."

Exploit likelihood

3.02%Down 1.2 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 6.8

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."

Record
CVE-2011-0188
CVSS 2.0
6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness
CWE-189
Updated
2026-11-02
CVE List No score

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."

Record
CVE-2011-0188
Updated
2026-11-02
EUVDEUVD-2011-0214 No score

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."

Record
EUVD-2011-0214
Updated
2026-11-03
GitHub AdvisoriesGHSA-6vch-6cgr-x9c3 No score

The VpMemAlloc function in bigdecimal.c in the BigDecimal class in Ruby 1.9.2-p136 and earlier,...

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."

Record
GHSA-6vch-6cgr-x9c3
Updated
2026-11-02
OSVRHSA-2026:7305 7.5

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Record
RHSA-2026:7305
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Updated
2026-11-02
OSVRHSA-2026:7307 7.5

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Record
RHSA-2026:7307
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Updated
2026-11-02
OSVRHSA-2026:8838 7.5

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Record
RHSA-2026:8838
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
ruby1.9.1
Debian:6.0
 before 1.9.2.0-2+deb6u4, plus listed versions
1.9.2.0-21.9.2.0-2+armhf
1.9.2.0-2+deb6u4
ruby1.8
Debian:6.0
 before 1.8.7.302-2squeeze3, plus listed versions
1.8.7.302-21.8.7.302-2squeeze11.8.7.302-2squeeze2
1.8.7.302-2squeeze3
irb
Red Hat:enterprise_linux:4::as
 before 0:1.8.1-16.el4
0:1.8.1-16.el4
ruby
Red Hat:enterprise_linux:4::as
 before 0:1.8.1-16.el4
0:1.8.1-16.el4
ruby-debuginfo
Red Hat:enterprise_linux:4::as
 before 0:1.8.1-16.el4
0:1.8.1-16.el4
ruby-devel
Red Hat:enterprise_linux:4::as
 before 0:1.8.1-16.el4
0:1.8.1-16.el4
ruby-docs
Red Hat:enterprise_linux:4::as
 before 0:1.8.1-16.el4
0:1.8.1-16.el4
ruby-libs
Red Hat:enterprise_linux:4::as
 before 0:1.8.1-16.el4
0:1.8.1-16.el4
ruby-mode
Red Hat:enterprise_linux:4::as
 before 0:1.8.1-16.el4
0:1.8.1-16.el4
ruby-tcltk
Red Hat:enterprise_linux:4::as
 before 0:1.8.1-16.el4
0:1.8.1-16.el4
Show 62 moreShow less
Affected packages
PackageAffectedFixed
irb
Red Hat:enterprise_linux:4::desktop
 before 0:1.8.1-16.el4
0:1.8.1-16.el4
ruby
Red Hat:enterprise_linux:4::desktop
 before 0:1.8.1-16.el4
0:1.8.1-16.el4
ruby-debuginfo
Red Hat:enterprise_linux:4::desktop
 before 0:1.8.1-16.el4
0:1.8.1-16.el4
ruby-devel
Red Hat:enterprise_linux:4::desktop
 before 0:1.8.1-16.el4
0:1.8.1-16.el4
ruby-docs
Red Hat:enterprise_linux:4::desktop
 before 0:1.8.1-16.el4
0:1.8.1-16.el4
ruby-libs
Red Hat:enterprise_linux:4::desktop
 before 0:1.8.1-16.el4
0:1.8.1-16.el4
ruby-mode
Red Hat:enterprise_linux:4::desktop
 before 0:1.8.1-16.el4
0:1.8.1-16.el4
ruby-tcltk
Red Hat:enterprise_linux:4::desktop
 before 0:1.8.1-16.el4
0:1.8.1-16.el4
irb
Red Hat:enterprise_linux:4::es
 before 0:1.8.1-16.el4
0:1.8.1-16.el4
ruby
Red Hat:enterprise_linux:4::es
 before 0:1.8.1-16.el4
0:1.8.1-16.el4
ruby-debuginfo
Red Hat:enterprise_linux:4::es
 before 0:1.8.1-16.el4
0:1.8.1-16.el4
ruby-devel
Red Hat:enterprise_linux:4::es
 before 0:1.8.1-16.el4
0:1.8.1-16.el4
ruby-docs
Red Hat:enterprise_linux:4::es
 before 0:1.8.1-16.el4
0:1.8.1-16.el4
ruby-libs
Red Hat:enterprise_linux:4::es
 before 0:1.8.1-16.el4
0:1.8.1-16.el4
ruby-mode
Red Hat:enterprise_linux:4::es
 before 0:1.8.1-16.el4
0:1.8.1-16.el4
ruby-tcltk
Red Hat:enterprise_linux:4::es
 before 0:1.8.1-16.el4
0:1.8.1-16.el4
irb
Red Hat:enterprise_linux:4::ws
 before 0:1.8.1-16.el4
0:1.8.1-16.el4
ruby
Red Hat:enterprise_linux:4::ws
 before 0:1.8.1-16.el4
0:1.8.1-16.el4
ruby-debuginfo
Red Hat:enterprise_linux:4::ws
 before 0:1.8.1-16.el4
0:1.8.1-16.el4
ruby-devel
Red Hat:enterprise_linux:4::ws
 before 0:1.8.1-16.el4
0:1.8.1-16.el4
ruby-docs
Red Hat:enterprise_linux:4::ws
 before 0:1.8.1-16.el4
0:1.8.1-16.el4
ruby-libs
Red Hat:enterprise_linux:4::ws
 before 0:1.8.1-16.el4
0:1.8.1-16.el4
ruby-mode
Red Hat:enterprise_linux:4::ws
 before 0:1.8.1-16.el4
0:1.8.1-16.el4
ruby-tcltk
Red Hat:enterprise_linux:4::ws
 before 0:1.8.1-16.el4
0:1.8.1-16.el4
ruby
Red Hat:enterprise_linux:5::server
 before 0:1.8.5-19.el5_6.1
0:1.8.5-19.el5_6.1
ruby-debuginfo
Red Hat:enterprise_linux:5::server
 before 0:1.8.5-19.el5_6.1
0:1.8.5-19.el5_6.1
ruby-devel
Red Hat:enterprise_linux:5::server
 before 0:1.8.5-19.el5_6.1
0:1.8.5-19.el5_6.1
ruby-docs
Red Hat:enterprise_linux:5::server
 before 0:1.8.5-19.el5_6.1
0:1.8.5-19.el5_6.1
ruby-irb
Red Hat:enterprise_linux:5::server
 before 0:1.8.5-19.el5_6.1
0:1.8.5-19.el5_6.1
ruby-libs
Red Hat:enterprise_linux:5::server
 before 0:1.8.5-19.el5_6.1
0:1.8.5-19.el5_6.1
ruby-mode
Red Hat:enterprise_linux:5::server
 before 0:1.8.5-19.el5_6.1
0:1.8.5-19.el5_6.1
ruby-rdoc
Red Hat:enterprise_linux:5::server
 before 0:1.8.5-19.el5_6.1
0:1.8.5-19.el5_6.1
ruby-ri
Red Hat:enterprise_linux:5::server
 before 0:1.8.5-19.el5_6.1
0:1.8.5-19.el5_6.1
ruby-tcltk
Red Hat:enterprise_linux:5::server
 before 0:1.8.5-19.el5_6.1
0:1.8.5-19.el5_6.1
ruby
Red Hat:enterprise_linux:6::server
 before 0:1.8.7.299-7.el6_1.1
0:1.8.7.299-7.el6_1.1
ruby-debuginfo
Red Hat:enterprise_linux:6::server
 before 0:1.8.7.299-7.el6_1.1
0:1.8.7.299-7.el6_1.1
ruby-irb
Red Hat:enterprise_linux:6::server
 before 0:1.8.7.299-7.el6_1.1
0:1.8.7.299-7.el6_1.1
ruby-libs
Red Hat:enterprise_linux:6::server
 before 0:1.8.7.299-7.el6_1.1
0:1.8.7.299-7.el6_1.1
ruby-devel
Red Hat:enterprise_linux:6::server
 before 0:1.8.7.299-7.el6_1.1
0:1.8.7.299-7.el6_1.1
ruby-docs
Red Hat:enterprise_linux:6::server
 before 0:1.8.7.299-7.el6_1.1
0:1.8.7.299-7.el6_1.1
ruby-rdoc
Red Hat:enterprise_linux:6::server
 before 0:1.8.7.299-7.el6_1.1
0:1.8.7.299-7.el6_1.1
ruby-ri
Red Hat:enterprise_linux:6::server
 before 0:1.8.7.299-7.el6_1.1
0:1.8.7.299-7.el6_1.1
ruby-static
Red Hat:enterprise_linux:6::server
 before 0:1.8.7.299-7.el6_1.1
0:1.8.7.299-7.el6_1.1
ruby-tcltk
Red Hat:enterprise_linux:6::server
 before 0:1.8.7.299-7.el6_1.1
0:1.8.7.299-7.el6_1.1
ruby3.3
Red Hat:hummingbird:1
 before 0:3.3.10-23.1.hum1
0:3.3.10-23.1.hum1
ruby3.3-bundled-gems
Red Hat:hummingbird:1
 before 0:3.3.10-23.1.hum1
0:3.3.10-23.1.hum1
ruby3.3-default-gems
Red Hat:hummingbird:1
 before 0:3.3.10-23.1.hum1
0:3.3.10-23.1.hum1
ruby3.3-devel
Red Hat:hummingbird:1
 before 0:3.3.10-23.1.hum1
0:3.3.10-23.1.hum1
ruby3.3-doc
Red Hat:hummingbird:1
 before 0:3.3.10-23.1.hum1
0:3.3.10-23.1.hum1
ruby3.3-libs
Red Hat:hummingbird:1
 before 0:3.3.10-23.1.hum1
0:3.3.10-23.1.hum1
ruby3.4
Red Hat:hummingbird:1
 before 0:3.4.8-31.1.hum1
0:3.4.8-31.1.hum1
ruby3.4-bundled-gems
Red Hat:hummingbird:1
 before 0:3.4.8-31.1.hum1
0:3.4.8-31.1.hum1
ruby3.4-default-gems
Red Hat:hummingbird:1
 before 0:3.4.8-31.1.hum1
0:3.4.8-31.1.hum1
ruby3.4-devel
Red Hat:hummingbird:1
 before 0:3.4.8-31.1.hum1
0:3.4.8-31.1.hum1
ruby3.4-doc
Red Hat:hummingbird:1
 before 0:3.4.8-31.1.hum1
0:3.4.8-31.1.hum1
ruby3.4-libs
Red Hat:hummingbird:1
 before 0:3.4.8-31.1.hum1
0:3.4.8-31.1.hum1
ruby4.0
Red Hat:hummingbird:1
 before 0:4.0.0-33.3.hum1
0:4.0.0-33.3.hum1
ruby4.0-bundled-gems
Red Hat:hummingbird:1
 before 0:4.0.0-33.3.hum1
0:4.0.0-33.3.hum1
ruby4.0-default-gems
Red Hat:hummingbird:1
 before 0:4.0.0-33.3.hum1
0:4.0.0-33.3.hum1
ruby4.0-devel
Red Hat:hummingbird:1
 before 0:4.0.0-33.3.hum1
0:4.0.0-33.3.hum1
ruby4.0-doc
Red Hat:hummingbird:1
 before 0:4.0.0-33.3.hum1
0:4.0.0-33.3.hum1
ruby4.0-libs
Red Hat:hummingbird:1
 before 0:4.0.0-33.3.hum1
0:4.0.0-33.3.hum1

History

History
WhenChangedSources
2026-11-03aliasesEUVD
2026-11-02createdCVE List, GitHub Advisories, NVD, OSV

References

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