PT-2026-28226 · Canonical · Trn

Published 2026-03-28 · Updated 2026-05-01 · CVE-2016-20042

Positive Technologies (AI Summary)

CVSS v3.1

8.4

High

Base vector

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

Name of the Vulnerable Software and Affected Versions TRN version 3.6-23

Description A stack buffer overflow allows local attackers to execute arbitrary code by providing an oversized argument to the application. This is achieved by crafting a malicious command-line argument containing 156 bytes of padding followed by a return address to overwrite the instruction pointer and execute shellcode with user privileges.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2016-20042

Affected Products

Trn

References · 8

• https://ubuntu.com/security/CVE-2016-20042 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2016-20042 · Security Note
• https://cve.org/CVERecord?id=CVE-2016-20042 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2016-20042 · Vendor Advisory
• https://vulncheck.com/advisories/trn-23-stack-buffer-overflow-local-code-execution · Note
• https://t.me/cveNotify/161751 · Telegram Post
• https://sourceforge.net/projects/trn · Note
• https://exploit-db.com/exploits/39764 · Note