PT-2022-10262 · Yasm+1 · Yasm+1

Clingto · Published 2022-07-26 · Updated 2022-07-28 · CVE-2021-33466

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions yasm version 1.3.0

Description A problem has been detected in yasm, where a NULL pointer dereference occurs in the expand smacro() function, located in the modules/preprocs/nasm/nasm-pp.c file. This issue affects the functionality of yasm.

Recommendations For yasm version 1.3.0, consider disabling the expand smacro() function as a temporary workaround until a patch is available. Restrict access to the affected module to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

AZL-10336

AZL-35376

CVE-2021-33466

Affected Products

Debian

Yasm

References · 11

• 🔥 https://github.com/yasm/yasm/issues/172 · Exploit
• https://security-tracker.debian.org/tracker/CVE-2021-33466 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-33466 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-33466 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-33466 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-10336 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-33466 · Security Note
• https://osv.dev/vulnerability/AZL-35376 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-33466 · Security Note
• https://ubuntu.com/security/CVE-2021-33466 · Vendor Advisory
• https://gist.github.com/Clingto/bb632c0c463f4b2c97e4f65f751c5e6d · Note