5
CVSSv2

CVE-2018-12248

Published: 12/06/2018 Updated: 03/10/2019
CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10
CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9
VMScore: 445
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Vulnerability Summary

An issue exists in mruby 1.4.1. There is a heap-based buffer over-read associated with OP_ENTER because mrbgems/mruby-fiber/src/fiber.c does not extend the stack in cases of many arguments to fiber.

Affected Products

Vendor Product Versions
MrubyMruby1.4.1

Vendor Advisories

Debian Bug report logs - #901653 mruby: CVE-2018-12248 Package: src:mruby; Maintainer for src:mruby is Nobuhiro Iwamatsu <iwamatsu@debianorg>; Reported by: Salvatore Bonaccorso <carnil@debianorg> Date: Sat, 16 Jun 2018 09:15:01 UTC Severity: important Tags: fixed-upstream, patch, security, upstream Found in versio ...
Debian Bug report logs - #900845 mruby: CVE-2018-11743 Package: src:mruby; Maintainer for src:mruby is Nobuhiro Iwamatsu <iwamatsu@debianorg>; Reported by: Salvatore Bonaccorso <carnil@debianorg> Date: Tue, 5 Jun 2018 20:39:01 UTC Severity: important Tags: fixed-upstream, security, upstream Found in version mruby ...

Github Repositories

A grammar based feedback Fuzzer

Co-authored-by: Daniel Teuchert <danielteuchert@rubde> Co-authored-by: Cornelius Aschermann <cornelius@hexgolemscom> Co-authored-by: Sergej Schumilo <sergej@schumilode>