UBUNTU-CVE-2021-46853

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Source
https://ubuntu.com/security/CVE-2021-46853
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-46853.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2021-46853
Upstream
Downstream
Related
Published
2022-11-03T06:15:00Z
Modified
2025-09-08T16:47:28Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Alpine before 2.25 allows remote attackers to cause a denial of service (application crash) when LIST or LSUB is sent before STARTTLS.

References

Affected packages

Ubuntu:Pro:16.04:LTS / alpine

Package

Name
alpine
Purl
pkg:deb/ubuntu/alpine@2.20+dfsg1-2ubuntu0.1~esm1?arch=source&distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.20+dfsg1-2ubuntu0.1~esm1

Affected versions

2.*

2.20+dfsg1-1
2.20+dfsg1-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "alpine",
            "binary_version": "2.20+dfsg1-2ubuntu0.1~esm1"
        },
        {
            "binary_name": "alpine-pico",
            "binary_version": "2.20+dfsg1-2ubuntu0.1~esm1"
        },
        {
            "binary_name": "pilot",
            "binary_version": "2.20+dfsg1-2ubuntu0.1~esm1"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}

Ubuntu:Pro:18.04:LTS / alpine

Package

Name
alpine
Purl
pkg:deb/ubuntu/alpine@2.21+dfsg1-1ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.21+dfsg1-1ubuntu0.1~esm1

Affected versions

2.*

2.20+dfsg1-7
2.21+dfsg1-1
2.21+dfsg1-1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "alpine",
            "binary_version": "2.21+dfsg1-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "alpine-pico",
            "binary_version": "2.21+dfsg1-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "pilot",
            "binary_version": "2.21+dfsg1-1ubuntu0.1~esm1"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}

Ubuntu:Pro:20.04:LTS / alpine

Package

Name
alpine
Purl
pkg:deb/ubuntu/alpine@2.22+dfsg1-1ubuntu0.1~esm1?arch=source&distro=esm-apps/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.22+dfsg1-1ubuntu0.1~esm1

Affected versions

2.*

2.21+dfsg1-1.1build1
2.22+dfsg1-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "alpine",
            "binary_version": "2.22+dfsg1-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "alpine-pico",
            "binary_version": "2.22+dfsg1-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "pilot",
            "binary_version": "2.22+dfsg1-1ubuntu0.1~esm1"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}