CVE-2018-10199

In versions of mruby up to and including 1.4.0, a use-after-free vulnerability exists in src/io.c::Fileinitilializecopy. An attacker that can cause Ruby code to be run can possibly use this to execute arbitrary code...

CVE-2018-10199

In versions of mruby up to and including 1.4.0, a use-after-free vulnerability exists in src/io.c::Fileinitilializecopy. An attacker that can cause Ruby code to be run can possibly use this to execute arbitrary code...

Use after free in File#initilialize_copy

In versions of mruby up to and including 1.4.0, a use-after-free vulnerability exists in src/io.c::Fileinitilializecopy. An attacker that can cause Ruby code to be run can possibly use this to execute arbitrary code...

CVE-2018-10191

In versions of mruby up to and including 1.4.0, an integer overflow exists in src/vm.c::mrbvmexec when handling OPGETUPVAR in the presence of deep scope nesting, resulting in a use-after-free. An attacker that can cause Ruby code to be run can use this to possibly execute arbitrary code...

DEBIAN-CVE-2018-10191

In versions of mruby up to and including 1.4.0, an integer overflow exists in src/vm.c::mrbvmexec when handling OPGETUPVAR in the presence of deep scope nesting, resulting in a use-after-free. An attacker that can cause Ruby code to be run can use this to possibly execute arbitrary code...

Integer overflow

In versions of mruby up to and including 1.4.0, an integer overflow exists in src/vm.c::mrbvmexec when handling OPGETUPVAR in the presence of deep scope nesting, resulting in a use-after-free. An attacker that can cause Ruby code to be run can use this to possibly execute arbitrary code...

CVE-2018-10191

In versions of mruby up to and including 1.4.0, an integer overflow exists in src/vm.c::mrbvmexec when handling OPGETUPVAR in the presence of deep scope nesting, resulting in a use-after-free. An attacker that can cause Ruby code to be run can use this to possibly execute arbitrary code...

CVE-2018-10191

In versions of mruby up to and including 1.4.0, an integer overflow exists in src/vm.c::mrbvmexec when handling OPGETUPVAR in the presence of deep scope nesting, resulting in a use-after-free. An attacker that can cause Ruby code to be run can use this to possibly execute arbitrary code...

UBUNTU-CVE-2018-10191

In versions of mruby up to and including 1.4.0, an integer overflow exists in src/vm.c::mrbvmexec when handling OPGETUPVAR in the presence of deep scope nesting, resulting in a use-after-free. An attacker that can cause Ruby code to be run can use this to possibly execute arbitrary code...

CVE-2018-10191

CVE-2018-10191 affects mruby up to version 1.4.0, where an integer overflow in src/vm.c::mrb_vm_exec() during OP_GETUPVAR with deep scope nesting leads to a use-after-free. This can enable arbitrary code execution if Ruby code is run. Public details in connected sources confirm the issue and indi...

CVE-2018-10191

In versions of mruby up to and including 1.4.0, an integer overflow exists in src/vm.c::mrbvmexec when handling OPGETUPVAR in the presence of deep scope nesting, resulting in a use-after-free. An attacker that can cause Ruby code to be run can use this to possibly execute arbitrary code...

CVE-2018-10191

In versions of mruby up to and including 1.4.0, an integer overflow exists in src/vm.c::mrbvmexec when handling OPGETUPVAR in the presence of deep scope nesting, resulting in a use-after-free. An attacker that can cause Ruby code to be run can use this to possibly execute arbitrary code...

Use after free caused by integer overflow in environment stack

In versions of mruby up to and including 1.4.0, an integer overflow exists in src/vm.c::mrbvmexec when handling OPGETUPVAR in the presence of deep scope nesting, resulting in a use-after-free. An attacker that can cause Ruby code to be run can use this to possibly execute arbitrary code...

H2O HTTP Server < 2.0.4 DoS Vulnerability

H2O allows remote attackers to cause a denial of service DoS via format string specifiers in a template file via fastcgi, mruby, proxy, redirect or reproxy. SPDX-FileCopyrightText: 2018 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the...

shopify-scripts: mruby heredoc notation

Hi There exists a vulnerability in mruby when using the heredoc notation it doesn't need ulimit The minified test can be generated with the following command: ruby -e 'IO.binwrite"j3.rb", "\xa7 This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent...

shopify-scripts: SEGV on ary_concat

The following input demonstrates a crash: def z return begin 0.each do return end rescue = x ensure x.backtrace end end z ASAN report ./mruby/bin/mruby asd.rb ASAN:DEADLYSIGNAL ================================================================= ==43761==ERROR: AddressSanitizer: SEGV on unknown...

shopify-scripts: Invalid read leading to a segfault

PoC === The attached POC demonstrates invalid reads leading to a segfault. Debug info ========== gdb report: 423│ dispatchlinkedcodegenscope s, int pc 424│ 425│ mrbcode i; 426│ int pos; 427│ 428│ if !pc return; 429│ for ;; 430├─── i = s-iseqpc; gdb p pc $1 = -32730 valgrind report: ==21952==...

shopify-scripts: Use after free in mruby-mpdecimal

Running the following ruby script in mruby compiled with ASAN enabled causes a use after free error: x=inspect.tod-0 Output of mruby with ASAN: $ ./ext/enterprisescriptservice/mruby/bin/mruby crash.rb trace: 0 crash.rb:1 1...

shopify-scripts: Null pointer dereference with send/method_missing

The following program triggers a null pointer dereference with mruby b200c747: ruby def methodmissingm ensure begin A rescue break rescue end end send '' ASAN report: text ASAN:DEADLYSIGNAL ================================================================= ==12116==ERROR: AddressSanitizer: SEGV on...

mruby Denial of Service Vulnerability

mruby is a lightweight implementation of the Ruby language. A security vulnerability exists in the gc.c file 'markcontextstack' function in mruby 1.2.0 and earlier. An attacker can exploit this vulnerability with the help of a specially crafted .rb file to cause a denial of service heap reuse aft...