UBUNTU-CVE-2020-28928

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Source
https://ubuntu.com/security/CVE-2020-28928
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-28928.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-28928
Upstream
Downstream
Related
Published
2020-11-24T18:15:00Z
Modified
2025-09-08T16:46:29Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

In musl libc through 1.2.1, wcsnrtombs mishandles particular combinations of destination buffer size and source character limit, as demonstrated by an invalid write access (buffer overflow).

References

Affected packages

Ubuntu:Pro:14.04:LTS / musl

Package

Name
musl
Purl
pkg:deb/ubuntu/musl@0.9.15-1ubuntu0.1~esm2?arch=source&distro=trusty/esm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.9.15-1ubuntu0.1~esm2

Affected versions

0.*

0.9.14-2
0.9.14-2ubuntu1
0.9.15-1
0.9.15-1ubuntu0.1~esm1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "musl",
            "binary_version": "0.9.15-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "musl-dev",
            "binary_version": "0.9.15-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "musl-tools",
            "binary_version": "0.9.15-1ubuntu0.1~esm2"
        }
    ]
}

Ubuntu:Pro:16.04:LTS / musl

Package

Name
musl
Purl
pkg:deb/ubuntu/musl@1.1.9-1ubuntu0.1~esm3?arch=source&distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.1.9-1ubuntu0.1~esm3

Affected versions

1.*

1.1.9-1
1.1.9-1ubuntu0.1~esm2

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "musl",
            "binary_version": "1.1.9-1ubuntu0.1~esm3"
        },
        {
            "binary_name": "musl-dev",
            "binary_version": "1.1.9-1ubuntu0.1~esm3"
        },
        {
            "binary_name": "musl-tools",
            "binary_version": "1.1.9-1ubuntu0.1~esm3"
        }
    ]
}

Ubuntu:Pro:18.04:LTS / musl

Package

Name
musl
Purl
pkg:deb/ubuntu/musl@1.1.19-1ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.1.19-1ubuntu0.1~esm1

Affected versions

1.*

1.1.16-3
1.1.18-1
1.1.19-1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "musl",
            "binary_version": "1.1.19-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "musl-dev",
            "binary_version": "1.1.19-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "musl-tools",
            "binary_version": "1.1.19-1ubuntu0.1~esm1"
        }
    ]
}

Ubuntu:Pro:20.04:LTS / musl

Package

Name
musl
Purl
pkg:deb/ubuntu/musl@1.1.24-1ubuntu0.1~esm1?arch=source&distro=esm-apps/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.1.24-1ubuntu0.1~esm1

Affected versions

1.*

1.1.23-2build1
1.1.24-1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "musl",
            "binary_version": "1.1.24-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "musl-dev",
            "binary_version": "1.1.24-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "musl-tools",
            "binary_version": "1.1.24-1ubuntu0.1~esm1"
        }
    ]
}