PT-2018-9744 · Ruby · Mruby

Cornelius Aschermann + 3 · Published 2018-04-17 · Updated 2022-05-12 · CVE-2018-10191

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: mruby versions prior to 1.4.1

Description: The issue is related to an integer overflow in the mrb vm exec() function when handling OP GETUPVAR in the presence of deep scope nesting, resulting in a use-after-free. This could allow an attacker who can cause Ruby code to be run to possibly execute arbitrary code.

Recommendations: For versions prior to 1.4.1, update to version 1.4.1 or later to resolve the issue.

Exploit

Fix

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

CVE-2018-10191

DLA-2996-1

Affected Products

Mruby

References · 25

• 🔥 https://github.com/mruby/mruby/issues/3995 · Exploit
• https://github.com/mruby/mruby/commit/1905091634a6a2925c911484434448e568330626 · Patch
• https://security-tracker.debian.org/tracker/source-package/mruby · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2018-10191 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-10191 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12249 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2018-10191 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-10191 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-11743 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9527 · Security Note
• https://security-tracker.debian.org/tracker/DLA-2996-1 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15866 · Security Note
• https://ubuntu.com/security/CVE-2018-10191 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-14337 · Security Note
• https://cve.org/CVERecord?id=CVE-2018-10191 · Security Note