PT-2020-19256 · Mruby · Mruby

Sleicasper · Published 2020-01-11 · Updated 2020-01-13 · CVE-2020-6839

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 version 2.1.0

Description A stack-based buffer overflow issue exists in the mrb str len to dbl function within string.c.

Recommendations For mruby version 2.1.0, at the moment, there is no information about a newer version that contains a fix for this issue.

Exploit

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2020-6839

Affected Products

Mruby

References · 7

• 🔥 https://github.com/mruby/mruby/issues/4929 · Exploit
• https://ubuntu.com/security/CVE-2020-6839 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-6839 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-6839 · Security Note
• https://osv.dev/vulnerability/CVE-2020-6839 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-6839 · Security Note
• https://github.com/mruby/mruby/commit/2124b9b4c95e66e63b1eb26a8dab49753b82fd6c · Note