CVE-2019-20334 describes a stack consumption vulnerability in Netwide Assembler (NASM) version 2.14.02, specifically within its expression evaluation functions. This flaw, similar to CVE-2019-6290 and CVE-2019-6291, could lead to a denial of service due to excessive stack usage. Rated Medium severity with a CVSS score of 5.5, it requires local access and user interaction for exploitation, resulting in high availability impact but no confidentiality or integrity compromise. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
2.14.02CPE matchmatch criteria | cpe:2.3:a:nasm:netwide_assembler:2.14.02:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
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No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
In Netwide Assembler (NASM) 2.14.02, stack consumption occurs in expr# functions in asm/eval.c. This potentially affects the relationships among expr0, expr1, expr2, expr3, expr4, expr5, and expr6 (and stdscan in asm/stdscan.c). This is similar to CVE-2019-6290 and CVE-2019-6291.
Jan 14, 2020nasm: stack consumption occurs in expr# functions in asm/eval.c
Jan 4, 2020