USN-5800-1

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USN-5800-1

Summary: heimdal vulnerabilities

Details: It was discovered that Heimdal incorrectly handled certain SPNEGO tokens. A remote attacker could possibly use this issue to cause a denial of service. (CVE-2021-44758) Evgeny Legerov discovered that Heimdal incorrectly handled memory when performing certain DES decryption operations. A remote attacker could use this issue to cause a denial of service, or possibly execute arbitrary code. (CVE-2022-3437) Greg Hudson discovered that Kerberos PAC implementation used in Heimdal incorrectly handled certain parsing operations. A remote attacker could use this issue to cause a denial of service, or possibly execute arbitrary code. (CVE-2022-42898) It was discovered that Heimdal's KDC did not properly handle certain error conditions. A remote attacker could use this issue to cause a denial of service, or possibly execute arbitrary code. (CVE-2022-44640)

References: https://ubuntu.com/security/notices/USN-5800-1, https://ubuntu.com/security/CVE-2021-44758, https://ubuntu.com/security/CVE-2022-3437, https://ubuntu.com/security/CVE-2022-42898, https://ubuntu.com/security/CVE-2022-44640