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
2026-04-22T14:50:40.715605Z
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_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-certmap0"
        },
        {
            "binary_version": "1.16.1-1ubuntu1.8",
            "binary_name": "libsss-idmap0"
        },
        {
            "binary_version": "1.16.1-1ubuntu1.8",
            "binary_name": "libsss-nss-idmap0"
        },
        {
            "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": "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"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-3621.json"

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_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-certmap0"
        },
        {
            "binary_version": "2.2.3-3ubuntu0.7",
            "binary_name": "libsss-idmap0"
        },
        {
            "binary_version": "2.2.3-3ubuntu0.7",
            "binary_name": "libsss-nss-idmap0"
        },
        {
            "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": "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"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-3621.json"

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_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-certmap0"
        },
        {
            "binary_version": "2.4.1-2ubuntu4",
            "binary_name": "libsss-idmap0"
        },
        {
            "binary_version": "2.4.1-2ubuntu4",
            "binary_name": "libsss-nss-idmap0"
        },
        {
            "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": "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"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-3621.json"