CVE-2018-11743

critical

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

https://lists.debian.org/debian-lts-announce/2022/05/msg00006.html

https://github.com/mruby/mruby/issues/4027

https://github.com/mruby/mruby/commit/b64ce17852b180dfeea81cf458660be41a78974d

Details

Source: Mitre, NVD

Published: 2018-06-05

Updated: 2022-05-12

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical