CVE-2019-20334

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.

CVSS v3.1

5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS v2.0

4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P

EPSS

0.76% chance of exploitation in the next 30 days, 53th percentile

Published

2020-01-04

Updated

2024-08-05

Proof-of-concept exploits (2)

• https://bugzilla.nasm.us/show_bug.cgi?id=3392548#c4
• https://bugzilla.nasm.us/show_bug.cgi?id=3392638

References

• CVE Record
• NVD entry

Related

• CVE-2019-20326
• CVE-2019-20348
• CVE-2019-2025
• CVE-2019-20352
• CVE-2019-2023
• CVE-2019-20354