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Vulnerability Details 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 arbitrary code.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.014
EPSS Ranking 79.3%
CVSS Severity
CVSS v3 Score 9.8
CVSS v2 Score 7.5
Products affected by CVE-2018-10191
  • Mruby » Mruby » Version: N/A
    cpe:2.3:a:mruby:mruby:-
  • Mruby » Mruby » Version: 1.0.0
    cpe:2.3:a:mruby:mruby:1.0.0
  • Mruby » Mruby » Version: 1.1.0
    cpe:2.3:a:mruby:mruby:1.1.0
  • Mruby » Mruby » Version: 1.2.0
    cpe:2.3:a:mruby:mruby:1.2.0
  • Mruby » Mruby » Version: 1.3.0
    cpe:2.3:a:mruby:mruby:1.3.0
  • Mruby » Mruby » Version: 1.4.0
    cpe:2.3:a:mruby:mruby:1.4.0
  • Debian » Debian Linux » Version: 9.0
    cpe:2.3:o:debian:debian_linux:9.0


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