UBUNTU-CVE-2021-31607

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Source
https://ubuntu.com/security/CVE-2021-31607
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-31607.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-31607
Upstream
Published
2021-04-23T06:15:00Z
Modified
2025-09-08T16:47:08Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

In SaltStack Salt 2016.9 through 3002.6, a command injection vulnerability exists in the snapper module that allows for local privilege escalation on a minion. The attack requires that a file is created with a pathname that is backed up by snapper, and that the master calls the snapper.diff function (which executes popen unsafely).

References

Affected packages

Ubuntu:Pro:14.04:LTS / salt

Package

Name
salt
Purl
pkg:deb/ubuntu/salt@0.17.5+ds-1ubuntu0.1~esm4?arch=source&distro=esm-infra-legacy/trusty

Affected ranges

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

Affected versions

0.*

0.16.0-1
0.16.4-2
0.17.1+dfsg-1
0.17.2-1
0.17.2-2
0.17.2-3
0.17.4-1
0.17.4-2
0.17.5-1
0.17.5+ds-1
0.17.5+ds-1ubuntu0.1~esm1
0.17.5+ds-1ubuntu0.1~esm2
0.17.5+ds-1ubuntu0.1~esm4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.17.5+ds-1ubuntu0.1~esm4",
            "binary_name": "salt-common"
        },
        {
            "binary_version": "0.17.5+ds-1ubuntu0.1~esm4",
            "binary_name": "salt-master"
        },
        {
            "binary_version": "0.17.5+ds-1ubuntu0.1~esm4",
            "binary_name": "salt-minion"
        },
        {
            "binary_version": "0.17.5+ds-1ubuntu0.1~esm4",
            "binary_name": "salt-ssh"
        },
        {
            "binary_version": "0.17.5+ds-1ubuntu0.1~esm4",
            "binary_name": "salt-syndic"
        }
    ]
}

Ubuntu:Pro:16.04:LTS / salt

Package

Name
salt
Purl
pkg:deb/ubuntu/salt@2015.8.8+ds-1ubuntu0.1+esm2?arch=source&distro=esm-apps/xenial

Affected ranges

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

Affected versions

2015.*

2015.5.3+ds-1
2015.8.1+ds-2
2015.8.3+ds-1
2015.8.3+ds-2
2015.8.3+ds-3
2015.8.5+ds-1
2015.8.7+ds-1
2015.8.8+ds-1
2015.8.8+ds-1ubuntu0.1~esm1
2015.8.8+ds-1ubuntu0.1
2015.8.8+ds-1ubuntu0.1+esm1
2015.8.8+ds-1ubuntu0.1+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2015.8.8+ds-1ubuntu0.1+esm2",
            "binary_name": "salt-api"
        },
        {
            "binary_version": "2015.8.8+ds-1ubuntu0.1+esm2",
            "binary_name": "salt-cloud"
        },
        {
            "binary_version": "2015.8.8+ds-1ubuntu0.1+esm2",
            "binary_name": "salt-common"
        },
        {
            "binary_version": "2015.8.8+ds-1ubuntu0.1+esm2",
            "binary_name": "salt-master"
        },
        {
            "binary_version": "2015.8.8+ds-1ubuntu0.1+esm2",
            "binary_name": "salt-minion"
        },
        {
            "binary_version": "2015.8.8+ds-1ubuntu0.1+esm2",
            "binary_name": "salt-proxy"
        },
        {
            "binary_version": "2015.8.8+ds-1ubuntu0.1+esm2",
            "binary_name": "salt-ssh"
        },
        {
            "binary_version": "2015.8.8+ds-1ubuntu0.1+esm2",
            "binary_name": "salt-syndic"
        }
    ]
}

Ubuntu:Pro:18.04:LTS / salt

Package

Name
salt
Purl
pkg:deb/ubuntu/salt@2017.7.4+dfsg1-1ubuntu18.04.2+esm1?arch=source&distro=esm-apps/bionic

Affected ranges

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

Affected versions

2016.*

2016.11.5+ds-1
2016.11.8+dfsg1-1

2017.*

2017.7.2+dfsg1-2ubuntu1
2017.7.3+dfsg1-1
2017.7.4+dfsg1-1
2017.7.4+dfsg1-1ubuntu18.04.1
2017.7.4+dfsg1-1ubuntu18.04.2
2017.7.4+dfsg1-1ubuntu18.04.2+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2017.7.4+dfsg1-1ubuntu18.04.2+esm1",
            "binary_name": "salt-api"
        },
        {
            "binary_version": "2017.7.4+dfsg1-1ubuntu18.04.2+esm1",
            "binary_name": "salt-cloud"
        },
        {
            "binary_version": "2017.7.4+dfsg1-1ubuntu18.04.2+esm1",
            "binary_name": "salt-common"
        },
        {
            "binary_version": "2017.7.4+dfsg1-1ubuntu18.04.2+esm1",
            "binary_name": "salt-master"
        },
        {
            "binary_version": "2017.7.4+dfsg1-1ubuntu18.04.2+esm1",
            "binary_name": "salt-minion"
        },
        {
            "binary_version": "2017.7.4+dfsg1-1ubuntu18.04.2+esm1",
            "binary_name": "salt-proxy"
        },
        {
            "binary_version": "2017.7.4+dfsg1-1ubuntu18.04.2+esm1",
            "binary_name": "salt-ssh"
        },
        {
            "binary_version": "2017.7.4+dfsg1-1ubuntu18.04.2+esm1",
            "binary_name": "salt-syndic"
        }
    ]
}

Ubuntu:22.04:LTS / salt

Package

Name
salt
Purl
pkg:deb/ubuntu/salt@3004.1+dfsg-2?arch=source&distro=jammy

Affected ranges

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

Affected versions

3002.*

3002.6+dfsg1-4
3002.7+dfsg1-1

Other

3004+dfsg1-4
3004+dfsg1-5
3004+dfsg1-6ubuntu1
3004+dfsg1-7
3004+dfsg1-8

3004.*

3004.1+dfsg-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3004.1+dfsg-2",
            "binary_name": "salt-api"
        },
        {
            "binary_version": "3004.1+dfsg-2",
            "binary_name": "salt-cloud"
        },
        {
            "binary_version": "3004.1+dfsg-2",
            "binary_name": "salt-common"
        },
        {
            "binary_version": "3004.1+dfsg-2",
            "binary_name": "salt-master"
        },
        {
            "binary_version": "3004.1+dfsg-2",
            "binary_name": "salt-minion"
        },
        {
            "binary_version": "3004.1+dfsg-2",
            "binary_name": "salt-proxy"
        },
        {
            "binary_version": "3004.1+dfsg-2",
            "binary_name": "salt-ssh"
        },
        {
            "binary_version": "3004.1+dfsg-2",
            "binary_name": "salt-syndic"
        }
    ]
}