UBUNTU-CVE-2020-21686
- Source
- https://ubuntu.com/security/CVE-2020-21686
- Import Source
- https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-21686.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2020-21686
- Upstream
- Published
- 2023-08-22T19:16:00Z
- Modified
- 2025-07-14T07:00:23.527344Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
- Ubuntu - medium
- Summary
- [none]
- Details
-
A stack-use-after-scope issue discovered in expandmmacparams function in preproc.c in nasm before 2.15.04 allows remote attackers to cause a denial of service via crafted asm file.
- References
Affected packages
Ubuntu:Pro:16.04:LTS / nasm
Package
- Name
- nasm
- Purl
- pkg:deb/ubuntu/nasm@2.11.08-1ubuntu0.1?arch=source&distro=esm-apps/xenial
Ubuntu:Pro:18.04:LTS / nasm
Package
- Name
- nasm
- Purl
- pkg:deb/ubuntu/nasm@2.13.02-0.1?arch=source&distro=esm-apps/bionic
Ubuntu:Pro:20.04:LTS / nasm
Package
- Name
- nasm
- Purl
- pkg:deb/ubuntu/nasm@2.14.02-1?arch=source&distro=esm-apps/focal
Ubuntu:22.04:LTS / nasm
Package
- Name
- nasm
- Purl
- pkg:deb/ubuntu/nasm@2.15.05-1?arch=source&distro=jammy
Ubuntu:24.04:LTS / nasm
Package
- Name
- nasm
- Purl
- pkg:deb/ubuntu/nasm@2.16.01-1build1?arch=source&distro=noble