CVE-2021-46020 — Improper Restriction of Operations within the Bounds of a Memory Buffer in Mruby

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer4 documents4 sources
Severity
7.5HIGHNVD
EPSS
0.3%
top 46.39%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
MrubyDebian Mruby
Timeline
PublishedJan 14
Latest updateJan 15

Description

An untrusted pointer dereference in mrb_vm_exec() of mruby v3.0.0 can lead to a segmentation fault or application crash.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages3 packages

▶debiandebian/mruby< mruby 3.1.0-1 (bookworm)
▶Debianmruby/mruby< 3.1.0-1+2
▶NVDmruby/mruby3.0.0

🔴Vulnerability Details

2
GHSA
GHSA-f639-3h6h-vr46: An untrusted pointer dereference in mrb_vm_exec() of mruby v3↗2022-01-15
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OSV
CVE-2021-46020: An untrusted pointer dereference in mrb_vm_exec() of mruby v3↗2022-01-14
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📋Vendor Advisories

1
Debian
CVE-2021-46020: mruby - An untrusted pointer dereference in mrb_vm_exec() of mruby v3.0.0 can lead to a ...↗2021
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