Related Vulnerabilities: CVE-2019-14868  

A flaw was found in ksh version 2020.0.0 in the evaluation of certain environment variables. An attacker could use this flaw to override or bypass environment restrictions to execute shell commands. Services and applications that allow remote unauthenticated attackers to provide one of those environment variables could allow them to exploit this issue remotely.

Severity High

Remote No

Type Arbitrary command execution

Description

A flaw was found in ksh version 2020.0.0 in the evaluation of certain environment variables. An attacker could use this flaw to override or bypass environment restrictions to execute shell commands. Services and applications that allow remote unauthenticated attackers to provide one of those environment variables could allow them to exploit this issue remotely.

AVG-1095 ksh 2020.0.0-1 2020.0.0-2 High Fixed

https://github.com/att/ast/commit/c7de8b641266bac7c77942239ac659edfee9ecd2