PT-2021-11720 · Wind River · Vxworks

Published 2021-05-12 · Updated 2022-05-12 · CVE-2020-35198

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: Wind River VxWorks version 7

Description: An issue was discovered in the memory allocator, where there is a possible integer overflow when calculating the size of a memory block to be allocated by the calloc() function. This results in the actual memory allocated being smaller than the buffer size specified by the arguments, leading to memory corruption.

Recommendations: For Wind River VxWorks version 7, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

CVE-2020-35198

Affected Products

Vxworks

References · 5

• 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://osv.dev/vulnerability/CVE-2020-35198 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-35198 · Security Note
• https://oracle.com/security-alerts/cpuapr2022.html · Patch