UBUNTU-CVE-2021-26937

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Source

https://ubuntu.com/security/CVE-2021-26937

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-26937.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-26937

Related

Published

2021-02-09T20:15:00Z

Modified

2025-01-13T10:22:30Z

Severity

9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator

Summary

[none]

Details

encoding.c in GNU Screen through 4.8.0 allows remote attackers to cause a denial of service (invalid write access and application crash) or possibly have unspecified other impact via a crafted UTF-8 character sequence.

References

Affected packages

Ubuntu:Pro:14.04:LTS / screen

Package

Name: screen
Purl: pkg:deb/ubuntu/screen@4.1.0~20120320gitdb59704-9ubuntu0.1~esm2?arch=source&distro=trusty/esm

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

4.1.0~20120320gitdb59704-9ubuntu0.1~esm2

Affected versions

4.*

4.0.3-14ubuntu10

4.1.0~20120320gitdb59704-9

4.1.0~20120320gitdb59704-9ubuntu0.1~esm1

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "4.1.0~20120320gitdb59704-9ubuntu0.1~esm2",
            "binary_name": "screen"
        },
        {
            "binary_version": "4.1.0~20120320gitdb59704-9ubuntu0.1~esm2",
            "binary_name": "screen-dbg"
        },
        {
            "binary_version": "4.1.0~20120320gitdb59704-9ubuntu0.1~esm2",
            "binary_name": "screen-dbgsym"
        }
    ]
}

Ubuntu:16.04:LTS / screen

Package

Name: screen
Purl: pkg:deb/ubuntu/screen@4.3.1-2ubuntu0.1?arch=source&distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

4.3.1-2ubuntu0.1

Affected versions

4.*

4.3.1-2

4.3.1-2build1

Ecosystem specific

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "4.3.1-2ubuntu0.1",
            "binary_name": "screen"
        },
        {
            "binary_version": "4.3.1-2ubuntu0.1",
            "binary_name": "screen-dbg"
        },
        {
            "binary_version": "4.3.1-2ubuntu0.1",
            "binary_name": "screen-dbgsym"
        }
    ]
}

Ubuntu:18.04:LTS / screen

Package

Name: screen
Purl: pkg:deb/ubuntu/screen@4.6.2-1ubuntu1.1?arch=source&distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

4.6.2-1ubuntu1.1

Affected versions

4.*

4.6.1-1

4.6.2-1

4.6.2-1ubuntu1

Ecosystem specific

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "4.6.2-1ubuntu1.1",
            "binary_name": "screen"
        },
        {
            "binary_version": "4.6.2-1ubuntu1.1",
            "binary_name": "screen-dbgsym"
        },
        {
            "binary_version": "4.6.2-1ubuntu1.1",
            "binary_name": "screen-udeb"
        }
    ]
}

Ubuntu:20.04:LTS / screen

Package

Name: screen
Purl: pkg:deb/ubuntu/screen@4.8.0-1ubuntu0.1?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

4.8.0-1ubuntu0.1

Affected versions

4.*

4.6.2-3build1

4.7.0-1

4.8.0-1

Ecosystem specific

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "4.8.0-1ubuntu0.1",
            "binary_name": "screen"
        },
        {
            "binary_version": "4.8.0-1ubuntu0.1",
            "binary_name": "screen-dbgsym"
        },
        {
            "binary_version": "4.8.0-1ubuntu0.1",
            "binary_name": "screen-udeb"
        }
    ]
}