USN-5542-1

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USN-5542-1

Summary: samba vulnerabilities

Details: It was discovered that Samba did not handle MaxQueryDuration when being used in AD DC configurations, contrary to expectations. This issue only affected Ubuntu 20.04 LTS. (CVE-2021-3670) Luke Howard discovered that Samba incorrectly handled certain restrictions associated with changing passwords. A remote attacker being requested to change passwords could possibly use this issue to escalate privileges. (CVE-2022-2031) Luca Moro discovered that Samba incorrectly handled certain SMB1 communications. A remote attacker could possibly use this issue to obtain sensitive memory contents. (CVE-2022-32742) Joseph Sutton discovered that Samba incorrectly handled certain password change requests. A remote attacker could use this issue to change passwords of other users, resulting in privilege escalation. (CVE-2022-32744) Joseph Sutton discovered that Samba incorrectly handled certain LDAP add or modify requests. A remote attacker could possibly use this issue to cause Samba to crash, resulting in a denial of service. (CVE-2022-32745) Joseph Sutton and Andrew Bartlett discovered that Samba incorrectly handled certain LDAP add or modify requests. A remote attacker could possibly use this issue to cause Samba to crash, resulting in a denial of service. (CVE-2022-32746)

References: https://ubuntu.com/security/notices/USN-5542-1, https://ubuntu.com/security/CVE-2021-3670, https://ubuntu.com/security/CVE-2022-2031, https://ubuntu.com/security/CVE-2022-32742, https://ubuntu.com/security/CVE-2022-32744, https://ubuntu.com/security/CVE-2022-32745, https://ubuntu.com/security/CVE-2022-32746