USN-2810-1

Dashboard / Vulnerabilities / USN-2810-1

USN-2810-1

Summary: krb5 vulnerabilities

Details: It was discovered that the Kerberos kpasswd service incorrectly handled certain UDP packets. A remote attacker could possibly use this issue to cause resource consumption, resulting in a denial of service. This issue only affected Ubuntu 12.04 LTS. (CVE-2002-2443) It was discovered that Kerberos incorrectly handled null bytes in certain data fields. A remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2014-5355) It was discovered that the Kerberos kdcpreauth modules incorrectly tracked certain client requests. A remote attacker could possibly use this issue to bypass intended preauthentication requirements. This issue only affected Ubuntu 14.04 LTS and Ubuntu 15.04. (CVE-2015-2694) It was discovered that Kerberos incorrectly handled certain SPNEGO packets. A remote attacker could possibly use this issue to cause a denial of service. (CVE-2015-2695) It was discovered that Kerberos incorrectly handled certain IAKERB packets. A remote attacker could possibly use this issue to cause a denial of service. (CVE-2015-2696, CVE-2015-2698) It was discovered that Kerberos incorrectly handled certain TGS requests. A remote attacker could possibly use this issue to cause a denial of service. (CVE-2015-2697)

References: https://ubuntu.com/security/notices/USN-2810-1, https://ubuntu.com/security/CVE-2002-2443, https://ubuntu.com/security/CVE-2014-5355, https://ubuntu.com/security/CVE-2015-2694, https://ubuntu.com/security/CVE-2015-2695, https://ubuntu.com/security/CVE-2015-2696, https://ubuntu.com/security/CVE-2015-2697, https://ubuntu.com/security/CVE-2015-2698