UBUNTU-CVE-2021-3621

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Source
https://ubuntu.com/security/CVE-2021-3621
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-3621.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2021-3621
Upstream
Downstream
Related
Published
2021-08-16T00:00:00Z
Modified
2025-09-08T16:46:45Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A flaw was found in SSSD, where the sssctl command was vulnerable to shell command injection via the logs-fetch and cache-expire subcommands. This flaw allows an attacker to trick the root user into running a specially crafted sssctl command, such as via sudo, to gain root access. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

References

Affected packages

Ubuntu:18.04:LTS / sssd

Package

Name
sssd
Purl
pkg:deb/ubuntu/sssd@1.16.1-1ubuntu1.8?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.16.1-1ubuntu1.8

Affected versions

1.*

1.15.3-2ubuntu1
1.15.3-3ubuntu1
1.16.0-5ubuntu1
1.16.0-5ubuntu2
1.16.1-1ubuntu1
1.16.1-1ubuntu1.1
1.16.1-1ubuntu1.2
1.16.1-1ubuntu1.3
1.16.1-1ubuntu1.4
1.16.1-1ubuntu1.5
1.16.1-1ubuntu1.6
1.16.1-1ubuntu1.7

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libipa-hbac-dev",
            "binary_version": "1.16.1-1ubuntu1.8"
        },
        {
            "binary_name": "libipa-hbac0",
            "binary_version": "1.16.1-1ubuntu1.8"
        },
        {
            "binary_name": "libnss-sss",
            "binary_version": "1.16.1-1ubuntu1.8"
        },
        {
            "binary_name": "libpam-sss",
            "binary_version": "1.16.1-1ubuntu1.8"
        },
        {
            "binary_name": "libsss-certmap-dev",
            "binary_version": "1.16.1-1ubuntu1.8"
        },
        {
            "binary_name": "libsss-certmap0",
            "binary_version": "1.16.1-1ubuntu1.8"
        },
        {
            "binary_name": "libsss-idmap-dev",
            "binary_version": "1.16.1-1ubuntu1.8"
        },
        {
            "binary_name": "libsss-idmap0",
            "binary_version": "1.16.1-1ubuntu1.8"
        },
        {
            "binary_name": "libsss-nss-idmap-dev",
            "binary_version": "1.16.1-1ubuntu1.8"
        },
        {
            "binary_name": "libsss-nss-idmap0",
            "binary_version": "1.16.1-1ubuntu1.8"
        },
        {
            "binary_name": "libsss-simpleifp-dev",
            "binary_version": "1.16.1-1ubuntu1.8"
        },
        {
            "binary_name": "libsss-simpleifp0",
            "binary_version": "1.16.1-1ubuntu1.8"
        },
        {
            "binary_name": "libsss-sudo",
            "binary_version": "1.16.1-1ubuntu1.8"
        },
        {
            "binary_name": "libwbclient-sssd",
            "binary_version": "1.16.1-1ubuntu1.8"
        },
        {
            "binary_name": "libwbclient-sssd-dev",
            "binary_version": "1.16.1-1ubuntu1.8"
        },
        {
            "binary_name": "python-libipa-hbac",
            "binary_version": "1.16.1-1ubuntu1.8"
        },
        {
            "binary_name": "python-libsss-nss-idmap",
            "binary_version": "1.16.1-1ubuntu1.8"
        },
        {
            "binary_name": "python-sss",
            "binary_version": "1.16.1-1ubuntu1.8"
        },
        {
            "binary_name": "python3-libipa-hbac",
            "binary_version": "1.16.1-1ubuntu1.8"
        },
        {
            "binary_name": "python3-libsss-nss-idmap",
            "binary_version": "1.16.1-1ubuntu1.8"
        },
        {
            "binary_name": "python3-sss",
            "binary_version": "1.16.1-1ubuntu1.8"
        },
        {
            "binary_name": "sssd",
            "binary_version": "1.16.1-1ubuntu1.8"
        },
        {
            "binary_name": "sssd-ad",
            "binary_version": "1.16.1-1ubuntu1.8"
        },
        {
            "binary_name": "sssd-ad-common",
            "binary_version": "1.16.1-1ubuntu1.8"
        },
        {
            "binary_name": "sssd-common",
            "binary_version": "1.16.1-1ubuntu1.8"
        },
        {
            "binary_name": "sssd-dbus",
            "binary_version": "1.16.1-1ubuntu1.8"
        },
        {
            "binary_name": "sssd-ipa",
            "binary_version": "1.16.1-1ubuntu1.8"
        },
        {
            "binary_name": "sssd-kcm",
            "binary_version": "1.16.1-1ubuntu1.8"
        },
        {
            "binary_name": "sssd-krb5",
            "binary_version": "1.16.1-1ubuntu1.8"
        },
        {
            "binary_name": "sssd-krb5-common",
            "binary_version": "1.16.1-1ubuntu1.8"
        },
        {
            "binary_name": "sssd-ldap",
            "binary_version": "1.16.1-1ubuntu1.8"
        },
        {
            "binary_name": "sssd-proxy",
            "binary_version": "1.16.1-1ubuntu1.8"
        },
        {
            "binary_name": "sssd-tools",
            "binary_version": "1.16.1-1ubuntu1.8"
        }
    ]
}

Ubuntu:20.04:LTS / sssd

Package

Name
sssd
Purl
pkg:deb/ubuntu/sssd@2.2.3-3ubuntu0.7?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2.3-3ubuntu0.7

Affected versions

2.*

2.2.0-4ubuntu1
2.2.2-1
2.2.2-1ubuntu1
2.2.3-1.1ubuntu1
2.2.3-2
2.2.3-3
2.2.3-3ubuntu0.1
2.2.3-3ubuntu0.2
2.2.3-3ubuntu0.3
2.2.3-3ubuntu0.4
2.2.3-3ubuntu0.6

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libipa-hbac-dev",
            "binary_version": "2.2.3-3ubuntu0.7"
        },
        {
            "binary_name": "libipa-hbac0",
            "binary_version": "2.2.3-3ubuntu0.7"
        },
        {
            "binary_name": "libnss-sss",
            "binary_version": "2.2.3-3ubuntu0.7"
        },
        {
            "binary_name": "libpam-sss",
            "binary_version": "2.2.3-3ubuntu0.7"
        },
        {
            "binary_name": "libsss-certmap-dev",
            "binary_version": "2.2.3-3ubuntu0.7"
        },
        {
            "binary_name": "libsss-certmap0",
            "binary_version": "2.2.3-3ubuntu0.7"
        },
        {
            "binary_name": "libsss-idmap-dev",
            "binary_version": "2.2.3-3ubuntu0.7"
        },
        {
            "binary_name": "libsss-idmap0",
            "binary_version": "2.2.3-3ubuntu0.7"
        },
        {
            "binary_name": "libsss-nss-idmap-dev",
            "binary_version": "2.2.3-3ubuntu0.7"
        },
        {
            "binary_name": "libsss-nss-idmap0",
            "binary_version": "2.2.3-3ubuntu0.7"
        },
        {
            "binary_name": "libsss-simpleifp-dev",
            "binary_version": "2.2.3-3ubuntu0.7"
        },
        {
            "binary_name": "libsss-simpleifp0",
            "binary_version": "2.2.3-3ubuntu0.7"
        },
        {
            "binary_name": "libsss-sudo",
            "binary_version": "2.2.3-3ubuntu0.7"
        },
        {
            "binary_name": "libwbclient-sssd",
            "binary_version": "2.2.3-3ubuntu0.7"
        },
        {
            "binary_name": "libwbclient-sssd-dev",
            "binary_version": "2.2.3-3ubuntu0.7"
        },
        {
            "binary_name": "python3-libipa-hbac",
            "binary_version": "2.2.3-3ubuntu0.7"
        },
        {
            "binary_name": "python3-libsss-nss-idmap",
            "binary_version": "2.2.3-3ubuntu0.7"
        },
        {
            "binary_name": "python3-sss",
            "binary_version": "2.2.3-3ubuntu0.7"
        },
        {
            "binary_name": "sssd",
            "binary_version": "2.2.3-3ubuntu0.7"
        },
        {
            "binary_name": "sssd-ad",
            "binary_version": "2.2.3-3ubuntu0.7"
        },
        {
            "binary_name": "sssd-ad-common",
            "binary_version": "2.2.3-3ubuntu0.7"
        },
        {
            "binary_name": "sssd-common",
            "binary_version": "2.2.3-3ubuntu0.7"
        },
        {
            "binary_name": "sssd-dbus",
            "binary_version": "2.2.3-3ubuntu0.7"
        },
        {
            "binary_name": "sssd-ipa",
            "binary_version": "2.2.3-3ubuntu0.7"
        },
        {
            "binary_name": "sssd-kcm",
            "binary_version": "2.2.3-3ubuntu0.7"
        },
        {
            "binary_name": "sssd-krb5",
            "binary_version": "2.2.3-3ubuntu0.7"
        },
        {
            "binary_name": "sssd-krb5-common",
            "binary_version": "2.2.3-3ubuntu0.7"
        },
        {
            "binary_name": "sssd-ldap",
            "binary_version": "2.2.3-3ubuntu0.7"
        },
        {
            "binary_name": "sssd-proxy",
            "binary_version": "2.2.3-3ubuntu0.7"
        },
        {
            "binary_name": "sssd-tools",
            "binary_version": "2.2.3-3ubuntu0.7"
        }
    ]
}

Ubuntu:22.04:LTS / sssd

Package

Name
sssd
Purl
pkg:deb/ubuntu/sssd@2.4.1-2ubuntu4?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.1-2ubuntu4

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libipa-hbac-dev",
            "binary_version": "2.4.1-2ubuntu4"
        },
        {
            "binary_name": "libipa-hbac0",
            "binary_version": "2.4.1-2ubuntu4"
        },
        {
            "binary_name": "libnss-sss",
            "binary_version": "2.4.1-2ubuntu4"
        },
        {
            "binary_name": "libpam-sss",
            "binary_version": "2.4.1-2ubuntu4"
        },
        {
            "binary_name": "libsss-certmap-dev",
            "binary_version": "2.4.1-2ubuntu4"
        },
        {
            "binary_name": "libsss-certmap0",
            "binary_version": "2.4.1-2ubuntu4"
        },
        {
            "binary_name": "libsss-idmap-dev",
            "binary_version": "2.4.1-2ubuntu4"
        },
        {
            "binary_name": "libsss-idmap0",
            "binary_version": "2.4.1-2ubuntu4"
        },
        {
            "binary_name": "libsss-nss-idmap-dev",
            "binary_version": "2.4.1-2ubuntu4"
        },
        {
            "binary_name": "libsss-nss-idmap0",
            "binary_version": "2.4.1-2ubuntu4"
        },
        {
            "binary_name": "libsss-simpleifp-dev",
            "binary_version": "2.4.1-2ubuntu4"
        },
        {
            "binary_name": "libsss-simpleifp0",
            "binary_version": "2.4.1-2ubuntu4"
        },
        {
            "binary_name": "libsss-sudo",
            "binary_version": "2.4.1-2ubuntu4"
        },
        {
            "binary_name": "libwbclient-sssd",
            "binary_version": "2.4.1-2ubuntu4"
        },
        {
            "binary_name": "libwbclient-sssd-dev",
            "binary_version": "2.4.1-2ubuntu4"
        },
        {
            "binary_name": "python3-libipa-hbac",
            "binary_version": "2.4.1-2ubuntu4"
        },
        {
            "binary_name": "python3-libsss-nss-idmap",
            "binary_version": "2.4.1-2ubuntu4"
        },
        {
            "binary_name": "python3-sss",
            "binary_version": "2.4.1-2ubuntu4"
        },
        {
            "binary_name": "sssd",
            "binary_version": "2.4.1-2ubuntu4"
        },
        {
            "binary_name": "sssd-ad",
            "binary_version": "2.4.1-2ubuntu4"
        },
        {
            "binary_name": "sssd-ad-common",
            "binary_version": "2.4.1-2ubuntu4"
        },
        {
            "binary_name": "sssd-common",
            "binary_version": "2.4.1-2ubuntu4"
        },
        {
            "binary_name": "sssd-dbus",
            "binary_version": "2.4.1-2ubuntu4"
        },
        {
            "binary_name": "sssd-ipa",
            "binary_version": "2.4.1-2ubuntu4"
        },
        {
            "binary_name": "sssd-kcm",
            "binary_version": "2.4.1-2ubuntu4"
        },
        {
            "binary_name": "sssd-krb5",
            "binary_version": "2.4.1-2ubuntu4"
        },
        {
            "binary_name": "sssd-krb5-common",
            "binary_version": "2.4.1-2ubuntu4"
        },
        {
            "binary_name": "sssd-ldap",
            "binary_version": "2.4.1-2ubuntu4"
        },
        {
            "binary_name": "sssd-proxy",
            "binary_version": "2.4.1-2ubuntu4"
        },
        {
            "binary_name": "sssd-tools",
            "binary_version": "2.4.1-2ubuntu4"
        }
    ]
}