PT-2022-10250 · Yasm+2 · Yasm+2

Clingto · Published 2022-07-26 · Updated 2026-03-29 · CVE-2021-33454

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 An issue was discovered in yasm. There is a NULL pointer dereference in the yasm expr get intnum() function in the libyasm/expr.c file.

Recommendations For yasm version 1.3.0, consider avoiding the use of the yasm expr get intnum() function until a patch is available. At the moment, there is no information about a newer version that contains a fix for this issue.

Exploit

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALT-PU-2024-10794

AZL-10324

AZL-35364

CVE-2021-33454

OESA-2025-1526

Affected Products

Alt Linux

Debian

Yasm

References · 16

• 🔥 https://github.com/yasm/yasm/issues/166 · Exploit
• https://osv.dev/vulnerability/CVE-2021-33454 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-33454 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-33454 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-33454 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2021-33454 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-33454 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-10324 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-ALPINE-318-CVE-2021-33454 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-35364 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2025-1526 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-29579 · Security Note
• https://ubuntu.com/security/CVE-2021-33454 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-33464 · Security Note
• https://gist.github.com/Clingto/bb632c0c463f4b2c97e4f65f751c5e6d · Note