UBUNTU-CVE-2020-21685

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Source
https://ubuntu.com/security/CVE-2020-21685
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-21685.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-21685
Upstream
Withdrawn
2025-09-12T17:13:25Z
Published
2023-08-22T19:16:00Z
Modified
2025-09-08T16:46:16Z
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

Buffer Overflow vulnerability in hash_findi function in hashtbl.c in nasm 2.15rc0 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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.11.06-1really2.11.05-1
2.11.08-1
2.11.08-1ubuntu0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.11.08-1ubuntu0.1",
            "binary_name": "nasm"
        }
    ]
}

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.13.01-2
2.13.02-0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.13.02-0.1",
            "binary_name": "nasm"
        }
    ]
}

Ubuntu:Pro:20.04:LTS / nasm

Package

Name
nasm
Purl
pkg:deb/ubuntu/nasm@2.14.02-1?arch=source&distro=esm-apps/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.14.02-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.14.02-1",
            "binary_name": "nasm"
        }
    ]
}

Ubuntu:22.04:LTS / nasm

Package

Name
nasm
Purl
pkg:deb/ubuntu/nasm@2.15.05-1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.15.05-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.15.05-1",
            "binary_name": "nasm"
        }
    ]
}

Ubuntu:24.04:LTS / nasm

Package

Name
nasm
Purl
pkg:deb/ubuntu/nasm@2.16.01-1build1?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.16.01-1
2.16.01-1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.16.01-1build1",
            "binary_name": "nasm"
        }
    ]
}

Ubuntu:25.04 / nasm

Package

Name
nasm
Purl
pkg:deb/ubuntu/nasm@2.16.03-1?arch=source&distro=plucky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.16.03-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.16.03-1",
            "binary_name": "nasm"
        }
    ]
}