CVE-2017-20229 | THREATINT

Description

MAWK 1.3.3-17 and prior contains a stack-based buffer overflow vulnerability that allows attackers to execute arbitrary code by exploiting inadequate boundary checks on user-supplied input. Attackers can craft malicious input that overflows the stack buffer and execute a return-oriented programming chain to spawn a shell with application privileges.

PUBLISHED Reserved 2026-03-28 | Published 2026-03-28 | Updated 2026-03-30 | Assigner VulnCheck

CRITICAL: 9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CRITICAL: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem types

Out-of-bounds Write

Product status

1.3.3-17

affected

Credits

Juan Sacco <juan.sacco@kpn.com> at KPN Red Team - http://www.kpn.com finder

References

www.exploit-db.com/exploits/42357 (ExploitDB-42357) exploit

www.vulncheck.com/...ies/mawk-17-stack-based-buffer-overflow (VulnCheck Advisory: MAWK 1.3.3-17 Stack-Based Buffer Overflow) third-party-advisory

cve.org (CVE-2017-20229)

nvd.nist.gov (CVE-2017-20229)

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