9.8
CRITICAL
CVE-2020-35198
VxWorks Memory Corruption Vulnerability
Description

An issue was discovered in Wind River VxWorks 7. The memory allocator has a possible integer overflow in calculating a memory block's size to be allocated by calloc(). As a result, the actual memory allocated is smaller than the buffer size specified by the arguments, leading to memory corruption.

INFO

Published Date :

May 12, 2021, 11:15 a.m.

Last Modified :

May 12, 2022, 2:06 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2020-35198 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 Windriver vxworks
1 Oracle communications_eagle
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-2020-35198.

URL Resource
https://support2.windriver.com/index.php?page=cve&on=view&id=CVE-2020-35198 Vendor Advisory
https://support2.windriver.com/index.php?page=security-notices Vendor Advisory
https://www.oracle.com/security-alerts/cpuapr2022.html Patch 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).

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

The following list is the news that have been mention CVE-2020-35198 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-35198 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]

    May. 12, 2022

    Action Type Old Value New Value
    Changed Reference Type https://www.oracle.com/security-alerts/cpuapr2022.html No Types Assigned https://www.oracle.com/security-alerts/cpuapr2022.html Patch, Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:oracle:communications_eagle:46.7.0:*:*:*:*:*:*:* *cpe:2.3:a:oracle:communications_eagle:*:*:*:*:*:*:*:* versions from (including) 46.8.0 up to (including) 46.8.2 *cpe:2.3:a:oracle:communications_eagle:*:*:*:*:*:*:*:* versions from (including) 46.9.1 up to (including) 46.9.3
  • CVE Modified by [email protected]

    Apr. 20, 2022

    Action Type Old Value New Value
    Added Reference https://www.oracle.com/security-alerts/cpuapr2022.html [No Types Assigned]
  • Initial Analysis by [email protected]

    Jun. 04, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://support2.windriver.com/index.php?page=cve&on=view&id=CVE-2020-35198 No Types Assigned https://support2.windriver.com/index.php?page=cve&on=view&id=CVE-2020-35198 Vendor Advisory
    Changed Reference Type https://support2.windriver.com/index.php?page=security-notices No Types Assigned https://support2.windriver.com/index.php?page=security-notices Vendor Advisory
    Added CWE NIST CWE-190
    Added CPE Configuration OR *cpe:2.3:o:windriver:vxworks:*:*:*:*:*:*:*:* versions from (including) 6.9 up to (excluding) 6.9.4.12 *cpe:2.3:o:windriver:vxworks:6.9.4.12:-:*:*:*:*:*:* *cpe:2.3:o:windriver:vxworks:6.9.4.12:rolling_cumulative_patch_layer1:*:*:*:*:*:* *cpe:2.3:o:windriver:vxworks:6.9.4.12:rolling_cumulative_patch_layer2:*:*:*:*:*:* *cpe:2.3:o:windriver:vxworks:*:*:*:*:*:*:*:* versions from (including) 7.0 up to (excluding) 21.03
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-2020-35198 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-2020-35198 weaknesses.

Exploit Prediction

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

0.21 }} 0.02%

score

0.59332

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability