5.5
MEDIUM
CVE-2018-20457
Radare2 Arm Assembly Code Injection Denial-of-Service Vulnerability
Description

In radare2 through 3.1.3, the assemble function inside libr/asm/p/asm_arm_cs.c allows attackers to cause a denial-of-service (application crash via an r_num_calc out-of-bounds read) by crafting an arm assembly input because a loop uses an incorrect index in armass.c and certain length validation is missing in armass64.c, a related issue to CVE-2018-20459.

INFO

Published Date :

Dec. 25, 2018, 7:29 p.m.

Last Modified :

Oct. 15, 2020, 4:14 p.m.

Remotely Exploitable :

No

Impact Score :

3.6

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2018-20457 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 Radare radare2
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-2018-20457.

URL Resource
https://github.com/radare/radare2/issues/12417 Patch Third Party Advisory
https://github.com/radareorg/radare2/commit/e5c14c167b0dcf0a53d76bd50bacbbcc0dfc1ae7 Patch Vendor 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).

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

The following list is the news that have been mention CVE-2018-20457 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2018-20457 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
  • Modified Analysis by [email protected]

    Oct. 15, 2020

    Action Type Old Value New Value
    Removed CVSS V3 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
    Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
    Changed Reference Type https://github.com/radareorg/radare2/commit/e5c14c167b0dcf0a53d76bd50bacbbcc0dfc1ae7 No Types Assigned https://github.com/radareorg/radare2/commit/e5c14c167b0dcf0a53d76bd50bacbbcc0dfc1ae7 Patch, Vendor Advisory
  • CVE Modified by [email protected]

    Oct. 07, 2020

    Action Type Old Value New Value
    Removed Reference https://github.com/devnexen/radare2/commit/88a8adf080a9f8ed5a4250a2507752e133ba54dd [Patch, Third Party Advisory]
    Added Reference https://github.com/radareorg/radare2/commit/e5c14c167b0dcf0a53d76bd50bacbbcc0dfc1ae7 [No Types Assigned]
  • Initial Analysis by [email protected]

    Jan. 09, 2019

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 (AV:N/AC:M/Au:N/C:N/I:N/A:P)
    Added CVSS V3 AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
    Changed Reference Type https://github.com/devnexen/radare2/commit/88a8adf080a9f8ed5a4250a2507752e133ba54dd No Types Assigned https://github.com/devnexen/radare2/commit/88a8adf080a9f8ed5a4250a2507752e133ba54dd Patch, Third Party Advisory
    Changed Reference Type https://github.com/radare/radare2/issues/12417 No Types Assigned https://github.com/radare/radare2/issues/12417 Patch, Third Party Advisory
    Added CWE CWE-125
    Added CPE Configuration OR *cpe:2.3:a:radare:radare2:*:*:*:*:*:*:*:* versions up to (including) 3.1.3
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-2018-20457 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-2018-20457 weaknesses.

Exploit Prediction

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

0.06 }} 0.00%

score

0.28317

percentile

CVSS31 - Vulnerability Scoring System
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