CVE-2018-12247
Mruby NULL Pointer Dereference
Description
An issue was discovered in mruby 1.4.1. There is a NULL pointer dereference in mrb_class, related to certain .clone usage, because mrb_obj_clone in kernel.c copies flags other than the MRB_FLAG_IS_FROZEN flag (e.g., the embedded flag).
INFO
Published Date :
June 12, 2018, 2:29 p.m.
Last Modified :
Aug. 1, 2018, 12:08 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2018-12247 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2018-12247.
| URL | Resource |
|---|---|
| https://github.com/mruby/mruby/commit/55edae0226409de25e59922807cb09acb45731a2 | Patch Third Party Advisory |
| https://github.com/mruby/mruby/issues/4036 | Issue Tracking Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
A grammar based feedback Fuzzer
Rust Python C
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2018-12247 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2018-12247 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Aug. 01, 2018
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://github.com/mruby/mruby/commit/55edae0226409de25e59922807cb09acb45731a2 No Types Assigned https://github.com/mruby/mruby/commit/55edae0226409de25e59922807cb09acb45731a2 Patch, Third Party Advisory Changed Reference Type https://github.com/mruby/mruby/issues/4036 No Types Assigned https://github.com/mruby/mruby/issues/4036 Issue Tracking, Third Party Advisory Added CWE CWE-476 Added CPE Configuration OR *cpe:2.3:a:mruby:mruby:1.4.1:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2018-12247 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2018-12247
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.10 }} 0.00%
score
0.40886
percentile