Upstream information

CVE-2016-3120 at MITRE

Description

The validate_as_request function in kdc_util.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.13.6 and 1.4.x before 1.14.3, when restrict_anonymous_to_tgt is enabled, uses an incorrect client data structure, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via an S4U2Self request.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having low severity.

CVSS v2 Scores
  National Vulnerability Database SUSE
Base Score 4 2.1
Vector AV:N/AC:L/Au:S/C:N/I:N/A:P AV:N/AC:H/Au:S/C:N/I:N/A:P
Access Vector Network Network
Access Complexity Low High
Authentication Single Single
Confidentiality Impact None None
Integrity Impact None None
Availability Impact Partial Partial
CVSS v3 Scores
  National Vulnerability Database
Base Score 6.5
Vector AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Access Vector Network
Access Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
SUSE Bugzilla entry: 991088 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise Build System Kit 12 SP1
  • krb5-mini >= 1.12.1-36.2
  • krb5-mini-devel >= 1.12.1-36.2
Patchnames:
SUSE-SLE-BSK-12-SP1-2016-1257
SUSE Linux Enterprise Desktop 12 SP1
  • krb5 >= 1.12.1-36.4
  • krb5-32bit >= 1.12.1-36.4
  • krb5-client >= 1.12.1-36.4
Patchnames:
SUSE-SLE-DESKTOP-12-SP1-2016-1257
SUSE Linux Enterprise Desktop 12 SP2
  • krb5 >= 1.12.5-39.1
  • krb5-32bit >= 1.12.5-39.1
  • krb5-client >= 1.12.5-39.1
Patchnames:
SUSE Linux Enterprise Desktop 12 SP2 GA krb5
SUSE Linux Enterprise Desktop 12 SP3
  • krb5 >= 1.12.5-39.1
  • krb5-32bit >= 1.12.5-39.1
  • krb5-client >= 1.12.5-39.1
Patchnames:
SUSE Linux Enterprise Desktop 12 SP3 GA krb5
SUSE Linux Enterprise Server 12 SP1
  • krb5 >= 1.12.1-36.4
  • krb5-32bit >= 1.12.1-36.4
  • krb5-client >= 1.12.1-36.4
  • krb5-doc >= 1.12.1-36.4
  • krb5-plugin-kdb-ldap >= 1.12.1-36.4
  • krb5-plugin-preauth-otp >= 1.12.1-36.4
  • krb5-plugin-preauth-pkinit >= 1.12.1-36.4
  • krb5-server >= 1.12.1-36.4
Patchnames:
SUSE-SLE-SERVER-12-SP1-2016-1257
SUSE Linux Enterprise Server 12 SP2
  • krb5 >= 1.12.5-39.1
  • krb5-32bit >= 1.12.5-39.1
  • krb5-client >= 1.12.5-39.1
  • krb5-doc >= 1.12.5-39.1
  • krb5-plugin-kdb-ldap >= 1.12.5-39.1
  • krb5-plugin-preauth-otp >= 1.12.5-39.1
  • krb5-plugin-preauth-pkinit >= 1.12.5-39.1
  • krb5-server >= 1.12.5-39.1
Patchnames:
SUSE Linux Enterprise Server 12 SP2 GA krb5
SUSE Linux Enterprise Server 12 SP3
  • krb5 >= 1.12.5-39.1
  • krb5-32bit >= 1.12.5-39.1
  • krb5-client >= 1.12.5-39.1
  • krb5-doc >= 1.12.5-39.1
  • krb5-plugin-kdb-ldap >= 1.12.5-39.1
  • krb5-plugin-preauth-otp >= 1.12.5-39.1
  • krb5-plugin-preauth-pkinit >= 1.12.5-39.1
  • krb5-server >= 1.12.5-39.1
Patchnames:
SUSE Linux Enterprise Server 12 SP3 GA krb5
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2
  • krb5 >= 1.12.5-39.1
  • krb5-client >= 1.12.5-39.1
  • krb5-doc >= 1.12.5-39.1
  • krb5-plugin-kdb-ldap >= 1.12.5-39.1
  • krb5-plugin-preauth-otp >= 1.12.5-39.1
  • krb5-plugin-preauth-pkinit >= 1.12.5-39.1
  • krb5-server >= 1.12.5-39.1
Patchnames:
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 GA krb5
SUSE Linux Enterprise Software Development Kit 12 SP1
  • krb5 >= 1.12.1-36.4
  • krb5-devel >= 1.12.1-36.4
Patchnames:
SUSE-SLE-SDK-12-SP1-2016-1257
SUSE Linux Enterprise Software Development Kit 12 SP2
  • krb5-devel >= 1.12.5-39.1
Patchnames:
SUSE Linux Enterprise Software Development Kit 12 SP2 GA krb5-devel
SUSE Linux Enterprise Software Development Kit 12 SP3
  • krb5-devel >= 1.12.5-39.1
Patchnames:
SUSE Linux Enterprise Software Development Kit 12 SP3 GA krb5-devel
openSUSE Leap 42.1
  • krb5 >= 1.12.1-36.3
  • krb5-32bit >= 1.12.1-36.3
  • krb5-client >= 1.12.1-36.3
  • krb5-client-debuginfo >= 1.12.1-36.3
  • krb5-debuginfo >= 1.12.1-36.3
  • krb5-debuginfo-32bit >= 1.12.1-36.3
  • krb5-debugsource >= 1.12.1-36.3
  • krb5-devel >= 1.12.1-36.3
  • krb5-devel-32bit >= 1.12.1-36.3
  • krb5-doc >= 1.12.1-36.3
  • krb5-mini >= 1.12.1-36.1
  • krb5-mini-debuginfo >= 1.12.1-36.1
  • krb5-mini-debugsource >= 1.12.1-36.1
  • krb5-mini-devel >= 1.12.1-36.1
  • krb5-plugin-kdb-ldap >= 1.12.1-36.3
  • krb5-plugin-kdb-ldap-debuginfo >= 1.12.1-36.3
  • krb5-plugin-preauth-otp >= 1.12.1-36.3
  • krb5-plugin-preauth-otp-debuginfo >= 1.12.1-36.3
  • krb5-plugin-preauth-pkinit >= 1.12.1-36.3
  • krb5-plugin-preauth-pkinit-debuginfo >= 1.12.1-36.3
  • krb5-server >= 1.12.1-36.3
  • krb5-server-debuginfo >= 1.12.1-36.3
Patchnames:
openSUSE-2016-1065
openSUSE Leap 42.2
  • krb5 >= 1.12.5-5.13
  • krb5-32bit >= 1.12.5-5.13
  • krb5-client >= 1.12.5-5.13
  • krb5-devel >= 1.12.5-5.13
Patchnames:
openSUSE Leap 42.2 GA krb5
openSUSE Leap 42.3
  • krb5 >= 1.12.5-7.17
  • krb5-32bit >= 1.12.5-7.17
  • krb5-client >= 1.12.5-7.17
  • krb5-devel >= 1.12.5-7.17
Patchnames:
openSUSE Leap 42.3 GA krb5
openSUSE Tumbleweed
  • krb5 >= 1.15-1.1
  • krb5-32bit >= 1.15-1.1
  • krb5-client >= 1.15-1.1
  • krb5-devel >= 1.15-1.1
  • krb5-devel-32bit >= 1.15-1.1
  • krb5-doc >= 1.15-1.1
  • krb5-mini >= 1.15-1.1
  • krb5-mini-devel >= 1.15-1.1
  • krb5-plugin-kdb-ldap >= 1.15-1.1
  • krb5-plugin-preauth-otp >= 1.15-1.1
  • krb5-plugin-preauth-pkinit >= 1.15-1.1
  • krb5-server >= 1.15-1.1
Patchnames:
openSUSE Tumbleweed GA krb5


Status of this issue by product and package

Product(s) Source package State
SUSE Linux Enterprise Desktop 12 GA krb5 Released
SUSE Linux Enterprise Desktop 12 SP1 krb5 Released
SUSE Linux Enterprise SDK 11 SP4 krb5 Not affected
SUSE Linux Enterprise SDK 12 GA krb5 Released
SUSE Linux Enterprise SDK 12 SP1 krb5 Released
SUSE Linux Enterprise Server 10 SP4 LTSS krb5 Not affected
SUSE Linux Enterprise Server 11 SP2 LTSS krb5 Not affected
SUSE Linux Enterprise Server 11 SP3 LTSS krb5 Not affected
SUSE Linux Enterprise Server 11 SP4 krb5 Not affected
SUSE Linux Enterprise Server 12 GA krb5 Released
SUSE Linux Enterprise Server 12 GA LTSS krb5 Released
SUSE Linux Enterprise Server 12 SP1 krb5 Released