UBUNTU-CVE-2021-32635

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Source
https://ubuntu.com/security/CVE-2021-32635
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-32635.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2021-32635
Related
Published
2021-05-28T21:15:00Z
Modified
2024-10-15T14:08:09Z
Severity
  • 6.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L CVSS Calculator
Summary
[none]
Details

Singularity is an open source container platform. In verions 3.7.2 and 3.7.3, Dde to incorrect use of a default URL, singularity action commands (run/shell/exec) specifying a container using a library:// URI will always attempt to retrieve the container from the default remote endpoint (cloud.sylabs.io) rather than the configured remote endpoint. An attacker may be able to push a malicious container to the default remote endpoint with a URI that is identical to the URI used by a victim with a non-default remote endpoint, thus executing the malicious container. Only action commands (run/shell/exec) against library:// URIs are affected. Other commands such as pull / push respect the configured remote endpoint. The vulnerability is patched in Singularity version 3.7.4. Two possible workarounds exist: Users can only interact with the default remote endpoint, or an installation can have an execution control list configured to restrict execution to containers signed with specific secure keys.

References

Affected packages

Ubuntu:Pro:18.04:LTS / singularity-container

Package

Name
singularity-container
Purl
pkg:deb/ubuntu/singularity-container?arch=src?distro=esm-apps/bionic

Affected ranges

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

Affected versions

2.*

2.3.1-2
2.3.2-1
2.4.1-1
2.4.2-2
2.4.2-3
2.4.2-4
2.4.2-4ubuntu0.1~esm1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:24.10 / singularity-container

Package

Name
singularity-container
Purl
pkg:deb/ubuntu/singularity-container?arch=src?distro=oracular

Affected ranges

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

Affected versions

4.*

4.1.1+ds2-1build1
4.1.2+ds1-1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:24.04:LTS / singularity-container

Package

Name
singularity-container
Purl
pkg:deb/ubuntu/singularity-container?arch=src?distro=noble

Affected ranges

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

Affected versions

4.*

4.1.1+ds2-1
4.1.1+ds2-1build1
4.1.1+ds2-1ubuntu0.1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}