CVE-2018-11743

CRITICAL

mruby 1.4.1 - Use-After-Free in init_copy Function

Title source: llm
STIX 2.1

Description

The init_copy function in kernel.c in mruby 1.4.1 makes initialize_copy calls for TT_ICLASS objects, which allows attackers to cause a denial of service (mrb_hash_keys uninitialized pointer and application crash) or possibly have unspecified other impact.

References (3)

Core 3
Core References
Exploit, Issue Tracking, Patch, Third Party Advisory x_refsource_misc
https://github.com/mruby/mruby/issues/4027
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2022/05/msg00006.html

Scores

CVSS v3 9.8
EPSS 0.0220
EPSS Percentile 80.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-824
Status published
Products (2)
debian/debian_linux 9.0
mruby/mruby 1.4.1
Published Jun 05, 2018
Tracked Since Feb 18, 2026