CVE-2023-31973

yasm v1.3.0 was discovered to contain a use after free via the function expand_mmac_params at /nasm/nasm-pp.c. Note: Multiple third parties dispute this as a bug and not a vulnerability according to the YASM security policy.

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 v3.1

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

EPSS

0.31% chance of exploitation in the next 30 days, 23th percentile

Published

2023-05-09

Updated

2024-08-02

Proof-of-concept exploits (1)

• yasm/yasm/issues/207

References

• CVE Record
• NVD entry

Related

• CVE-2021-33454
• CVE-2021-33455
• CVE-2021-33456
• CVE-2021-33457
• CVE-2021-33458
• CVE-2021-33459