DEBIAN-CVE-2020-21686

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Source
https://security-tracker.debian.org/tracker/CVE-2020-21686
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-21686.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2020-21686
Upstream
Published
2023-08-22T19:16:14.327Z
Modified
2025-11-19T01:01:54.577011Z
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
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

Debian:11 / nasm

Package

Name
nasm
Purl
pkg:deb/debian/nasm?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.15.04-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-21686.json"

Debian:12 / nasm

Package

Name
nasm
Purl
pkg:deb/debian/nasm?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.15.04-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-21686.json"

Debian:13 / nasm

Package

Name
nasm
Purl
pkg:deb/debian/nasm?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.15.04-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-21686.json"

Debian:14 / nasm

Package

Name
nasm
Purl
pkg:deb/debian/nasm?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.15.04-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-21686.json"