CVE-2020-27255: rockwellautomation factorytalk_linx Heap-based Buffer Overflow

Vulnerability summary

CVE-2020-27255 is a high (CVSS 7.5) Heap-based Buffer Overflow vulnerability in rockwellautomation factorytalk_linx. EPSS estimates a 3.87% chance of exploitation in the next 30 days, higher than 90.1% of scored vulnerabilities.

Timeline

1. 26-11-2020
   PublishedVulnerability first disclosed.
2. 04-08-2024
   Last modifiedVulnerability information updated.

Description

A heap overflow vulnerability exists within FactoryTalk Linx Version 6.11 and prior. This vulnerability could allow a remote, unauthenticated attacker to send malicious set attribute requests, which could result in the leaking of sensitive information. This information disclosure could lead to the bypass of address space layout randomization (ASLR).

• CWE-122Heap-based Buffer OverflowA heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().