7.5
HIGH
CVE-2018-12248
Mruby Fiber Heap-Based Buffer Over-Read Vulnerability
Description

An issue was discovered in mruby 1.4.1. There is a heap-based buffer over-read associated with OP_ENTER because mrbgems/mruby-fiber/src/fiber.c does not extend the stack in cases of many arguments to fiber.

INFO

Published Date :

June 12, 2018, 2:29 p.m.

Last Modified :

Oct. 3, 2019, 12:03 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2018-12248 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2018-12248 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Mruby mruby
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-2018-12248.

URL Resource
https://github.com/mruby/mruby/commit/778500563a9f7ceba996937dc886bd8cde29b42b Patch Third Party Advisory
https://github.com/mruby/mruby/issues/4038 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

Updated: 2 months, 2 weeks ago
422 stars 63 fork 63 watcher
Born at : March 29, 2020, 2:32 p.m. This repo has been linked 6 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2018-12248 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2018-12248 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
  • CWE Remap by [email protected]

    Oct. 03, 2019

    Action Type Old Value New Value
    Changed CWE CWE-119 CWE-125 CWE-125
  • Initial Analysis by [email protected]

    Aug. 02, 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/778500563a9f7ceba996937dc886bd8cde29b42b No Types Assigned https://github.com/mruby/mruby/commit/778500563a9f7ceba996937dc886bd8cde29b42b Patch, Third Party Advisory
    Changed Reference Type https://github.com/mruby/mruby/issues/4038 No Types Assigned https://github.com/mruby/mruby/issues/4038 Issue Tracking, Third Party Advisory
    Added CWE CWE-119
    Added CPE Configuration OR *cpe:2.3:a:mruby:mruby:1.4.1:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2018-12248 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-2018-12248 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.10 }} 0.01%

score

0.41617

percentile

CVSS30 - Vulnerability Scoring System
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