CVE-2019-20352

nasm: heap-based buffer over-read in set_text_free when called from expand_one_smacro in asm/preproc.c

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Severity

Low

Red Hat Product Security

7.1

CVSS 3.1

Review impact separately from score.

Published · January 14, 2020

Updated · November 22, 2025

Description

In Netwide Assembler (NASM) 2.15rc0, a heap-based buffer over-read occurs (via a crafted .asm file) in set_text_free when called from expand_one_smacro in asm/preproc.c.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

CWE-122 · Heap-based Buffer Overflow