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mruby mruby vulnerabilities and exploits
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9.8
CVSSv3
CVE-2020-6839
In mruby 2.1.0, there is a stack-based buffer overflow in mrb_str_len_to_dbl in string.c.
Mruby Mruby 2.1.0
7.8
CVSSv3
CVE-2020-36401
mruby 2.1.2 has a double free in mrb_default_allocf (called from mrb_free and obj_free).
Mruby Mruby 2.1.2
7.5
CVSSv3
CVE-2021-46020
An untrusted pointer dereference in mrb_vm_exec() of mruby v3.0.0 can lead to a segmentation fault or application crash.
Mruby Mruby 3.0.0
9.8
CVSSv3
CVE-2018-10191
In versions of mruby up to and including 1.4.0, an integer overflow exists in src/vm.c::mrb_vm_exec() when handling OP_GETUPVAR 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 ar...
Mruby Mruby
Debian Debian Linux 9.0
7.8
CVSSv3
CVE-2017-9527
The mark_context_stack function in gc.c in mruby up to and including 1.2.0 allows malicious users to cause a denial of service (heap-based use-after-free and application crash) or possibly have unspecified other impact via a crafted .rb file.
Mruby Mruby
Debian Debian Linux 9.0
7.5
CVSSv3
CVE-2018-12249
An issue exists in mruby 1.4.1. There is a NULL pointer dereference in mrb_class_real because "class BasicObject" is not properly supported in class.c.
Mruby Mruby 1.4.1
Debian Debian Linux 9.0
9.8
CVSSv3
CVE-2018-11743
The init_copy function in kernel.c in mruby 1.4.1 makes initialize_copy calls for TT_ICLASS objects, which allows malicious users to cause a denial of service (mrb_hash_keys uninitialized pointer and application crash) or possibly have unspecified other impact.
Mruby Mruby 1.4.1
Debian Debian Linux 9.0
7.5
CVSSv3
CVE-2018-14337
The CHECK macro in mrbgems/mruby-sprintf/src/sprintf.c in mruby 1.4.1 contains a signed integer overflow, possibly leading to out-of-bounds memory access because the mrb_str_resize function in string.c does not check for a negative length.
Mruby Mruby 1.4.1
Debian Debian Linux 9.0
7.5
CVSSv3
CVE-2016-4864
H2O versions 2.0.3 and previous versions and 2.1.0-beta2 and previous versions allows remote malicious users to cause a denial-of-service (DoS) via format string specifiers in a template file via fastcgi, mruby, proxy, redirect or reproxy.
Dena H2o
Dena H2o 2.1.0
CVSSv3
CVSSv2
CVSSv3
VMScore
Recommendations:
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CVE-2023-46694
CVE-2023-43847
CVE-2023-30311
CVE-2024-27842
CVE-2024-30165
arbitrary code
CVE-2024-21683
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