[ASA-202107-10] mruby: arbitrary code execution
Jonas Witschel
diabonas at archlinux.org
Sat Jul 3 16:25:37 UTC 2021
Arch Linux Security Advisory ASA-202107-10
==========================================
Severity: Medium
Date : 2021-07-01
CVE-ID : CVE-2020-36401
Package : mruby
Type : arbitrary code execution
Remote : Yes
Link : https://security.archlinux.org/AVG-2116
Summary
=======
The package mruby before version 3.0.0-1 is vulnerable to arbitrary
code execution.
Resolution
==========
Upgrade to 3.0.0-1.
# pacman -Syu "mruby>=3.0.0-1"
The problem has been fixed upstream in version 3.0.0.
Workaround
==========
None.
Description
===========
mruby 2.1.2 has a double free in mrb_default_allocf (called from
mrb_free and obj_free).
Impact
======
An attacker could execute arbitrary code through a use after free.
References
==========
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/mruby/OSV-2020-744.yaml
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=23801
https://github.com/mruby/mruby/commit/97319697c8f9f6ff27b32589947e1918e3015503
https://security.archlinux.org/CVE-2020-36401
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 833 bytes
Desc: not available
URL: <https://lists.archlinux.org/pipermail/arch-security/attachments/20210703/5742f63a/attachment.sig>
More information about the arch-security
mailing list