USN-4724-1

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USN-4724-1

Summary: openldap vulnerabilities

Details: It was discovered that OpenLDAP incorrectly handled Certificate Exact Assertion processing. A remote attacker could possibly use this issue to cause OpenLDAP to crash, resulting in a denial of service. (CVE-2020-36221) It was discovered that OpenLDAP incorrectly handled saslAuthzTo processing. A remote attacker could use this issue to cause OpenLDAP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2020-36222, CVE-2020-36224, CVE-2020-36225, CVE-2020-36226) It was discovered that OpenLDAP incorrectly handled Return Filter control handling. A remote attacker could use this issue to cause OpenLDAP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2020-36223) It was discovered that OpenLDAP incorrectly handled certain cancel operations. A remote attacker could possibly use this issue to cause OpenLDAP to crash, resulting in a denial of service. (CVE-2020-36227) It was discovered that OpenLDAP incorrectly handled Certificate List Extract Assertion processing. A remote attacker could possibly use this issue to cause OpenLDAP to crash, resulting in a denial of service. (CVE-2020-36228) It was discovered that OpenLDAP incorrectly handled X.509 DN parsing. A remote attacker could possibly use this issue to cause OpenLDAP to crash, resulting in a denial of service. (CVE-2020-36229, CVE-2020-36230)

References: https://ubuntu.com/security/notices/USN-4724-1, https://ubuntu.com/security/CVE-2020-36221, https://ubuntu.com/security/CVE-2020-36222, https://ubuntu.com/security/CVE-2020-36223, https://ubuntu.com/security/CVE-2020-36224, https://ubuntu.com/security/CVE-2020-36225, https://ubuntu.com/security/CVE-2020-36226, https://ubuntu.com/security/CVE-2020-36227, https://ubuntu.com/security/CVE-2020-36228, https://ubuntu.com/security/CVE-2020-36229, https://ubuntu.com/security/CVE-2020-36230