CVE-2014-5353

Updated krb5 packages fix security vulnerability:

In MIT krb5, when kadmind is configured to use LDAP for the KDC database, an authenticated remote attacker can cause a NULL dereference by attempting to use a named ticket policy object as a password policy for a principal. The attacker needs to be authenticated as a user who has the elevated privilege for setting password policy by adding or modifying principals (CVE-2014-5353).

These are all security issues fixed in the krb5-1.15-1.1 package on the GA media of openSUSE Tumbleweed.

krb5 was updated to fix four security issues.

These security issues were fixed:

• CVE-2014-5353: NULL pointer dereference when using a ticket policy name as password name (bsc#910457).
• CVE-2014-5354: NULL pointer dereference when using keyless entries (bsc#910458).
• CVE-2014-5355: Denial of service in krb5_read_message (bsc#918595).
• CVE-2015-2694: OTP and PKINIT kdcpreauth modules leading to requires_preauth bypass (bsc#928978).

krb5 was updated to fix three security issues.

Remote authenticated users could cause denial of service.

These security issues were fixed:

• CVE-2014-5353: NULL pointer dereference when using a ticket policy name as password name (bsc#910457).
• CVE-2014-5354: NULL pointer dereference when using keyless entries (bsc#910458).
• CVE-2014-5355: Denial of service in krb5_read_message (bsc#918595).

The krb5_ldap_get_password_policy_from_dn function in plugins/kdb/ldap/libkdb_ldap/ldap_pwd_policy.c in MIT Kerberos 5 (aka krb5) before 1.13.1, when the KDC uses LDAP, allows remote authenticated users to cause a denial of service (daemon crash) via a successful LDAP query with no results, as demonstrated by using an incorrect object type for a password policy.

It was discovered that Kerberos incorrectly sent old keys in response to a -randkey -keepold request. An authenticated remote attacker could use this issue to forge tickets by leveraging administrative access. This issue only affected Ubuntu 10.04 LTS, Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2014-5351)

It was discovered that the libgssapi_krb5 library incorrectly processed security context handles. A remote attacker could use this issue to cause a denial of service, or possibly execute arbitrary code. (CVE-2014-5352)

Patrik Kis discovered that Kerberos incorrectly handled LDAP queries with no results. An authenticated remote attacker could use this issue to cause the KDC to crash, resulting in a denial of service. (CVE-2014-5353)

It was discovered that Kerberos incorrectly handled creating database entries for a keyless principal when using LDAP. An authenticated remote attacker could use this issue to cause the KDC to crash, resulting in a denial of service. (CVE-2014-5354)

It was discovered that Kerberos incorrectly handled memory when processing XDR data. A remote attacker could use this issue to cause kadmind to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2014-9421)

It was discovered that Kerberos incorrectly handled two-component server principals. A remote attacker could use this issue to perform impersonation attacks. (CVE-2014-9422)

It was discovered that the libgssrpc library leaked uninitialized bytes. A remote attacker could use this issue to possibly obtain sensitive information. (CVE-2014-9423)