PT-2023-12564 · Mruby+1 · Mruby+1

Aidaipop · Published 2023-02-14 · Updated 2023-02-22 · CVE-2021-46023

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions mruby versions prior to 3.1.0-rc

Description An Untrusted Pointer Dereference was discovered in the mrb vm exec function, causing a segmentation fault and application crash.

Recommendations For versions prior to 3.1.0-rc, update to version 3.1.0-rc or later to resolve the issue. As a temporary workaround, consider restricting the use of the mrb vm exec function until a patch is available.

Exploit

Fix

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CVE-2021-46023

Affected Products

Debian

Mruby

References · 9

• 🔥 https://github.com/mruby/mruby/issues/5613 · Exploit
• https://cve.org/CVERecord?id=CVE-2021-46023 · Security Note
• https://ubuntu.com/security/CVE-2021-46023 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-46023 · Security Note
• https://osv.dev/vulnerability/CVE-2021-46023 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-46023 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-46023 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-46023 · Vendor Advisory
• https://t.me/cibsecurity/58113 · Telegram Post