Ubuntu Security Notice 6156-1 - It was discovered that SSSD incorrectly sanitized certificate data used in LDAP filters. When using this issue in combination with FreeIPA, a remote attacker could possibly use this issue to escalate privileges.
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Ubuntu Security Notice USN-6156-1
June 12, 2023
sssd vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.04 LTS
Summary:
SSSD could allow unintended access to network services.
Software Description:
- sssd: System Security Services Daemon
Details:
It was discovered that SSSD incorrrectly sanitized certificate data used in
LDAP filters. When using this issue in combination with FreeIPA, a remote
attacker could possibly use this issue to escalate privileges.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 20.04 LTS:
sssd 2.2.3-3ubuntu0.11
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-6156-1
CVE-2022-4254
Package Information:
https://launchpad.net/ubuntu/+source/sssd/2.2.3-3ubuntu0.11