CVE-2017-11368

Upstream information

CVE-2017-11368 at MITRE

Description

In MIT Kerberos 5 (aka krb5) 1.7 and later, an authenticated attacker can cause a KDC assertion failure by sending invalid S4U2Self or S4U2Proxy requests.

---

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v2 Scores

	National Vulnerability Database	SUSE
Base Score	4	6.8
Vector	AV:N/AC:L/Au:S/C:N/I:N/A:P	AV:N/AC:L/Au:S/C:N/I:N/A:C
Access Vector	Network	Network
Access Complexity	Low	Low
Authentication	Single	Single
Confidentiality Impact	None	None
Integrity Impact	None	None
Availability Impact	Partial	Complete

CVSS v3 Scores

	National Vulnerability Database	SUSE
Base Score	6.5	6.5
Vector	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Access Vector	Network	Network
Access Complexity	Low	Low
Privileges Required	Low	Low
User Interaction	None	None
Scope	Unchanged	Unchanged
Confidentiality Impact	None	None
Integrity Impact	None	None
Availability Impact	High	High
CVSSv3 Version	3	3

SUSE Bugzilla entry: 1049819 [RESOLVED / FIXED]

No SUSE Security Announcements cross referenced.

List of released packages

Product(s)	Fixed package version(s)	References
SUSE Linux Enterprise Module for Basesystem 15 SP1	krb5 >= 1.16.3-1.16 krb5-32bit >= 1.16.3-1.16 krb5-client >= 1.16.3-1.16 krb5-devel >= 1.16.3-1.16 krb5-plugin-preauth-otp >= 1.16.3-1.16 krb5-plugin-preauth-pkinit >= 1.16.3-1.16
SUSE Linux Enterprise Module for Basesystem 15 SP2	krb5 >= 1.16.3-3.6.1 krb5-32bit >= 1.16.3-3.6.1 krb5-client >= 1.16.3-3.6.1 krb5-devel >= 1.16.3-3.6.1 krb5-plugin-preauth-otp >= 1.16.3-3.6.1 krb5-plugin-preauth-pkinit >= 1.16.3-3.6.1
SUSE Linux Enterprise Module for Basesystem 15 SP3	krb5 >= 1.16.3-3.15.1 krb5-32bit >= 1.16.3-3.15.1 krb5-client >= 1.16.3-3.15.1 krb5-devel >= 1.16.3-3.15.1 krb5-plugin-preauth-otp >= 1.16.3-3.15.1 krb5-plugin-preauth-pkinit >= 1.16.3-3.15.1
SUSE Linux Enterprise Module for Basesystem 15	krb5 >= 1.15.2-4.25 krb5-32bit >= 1.15.2-4.25 krb5-client >= 1.15.2-4.25 krb5-devel >= 1.15.2-4.25 krb5-plugin-preauth-otp >= 1.15.2-4.25 krb5-plugin-preauth-pkinit >= 1.15.2-4.25
SUSE Linux Enterprise Module for Server Applications 15 SP1	krb5-plugin-kdb-ldap >= 1.16.3-1.16 krb5-server >= 1.16.3-1.16
SUSE Linux Enterprise Module for Server Applications 15 SP2	krb5-plugin-kdb-ldap >= 1.16.3-3.6.1 krb5-server >= 1.16.3-3.6.1
SUSE Linux Enterprise Module for Server Applications 15 SP3	krb5-plugin-kdb-ldap >= 1.16.3-3.15.1 krb5-server >= 1.16.3-3.15.1
SUSE Linux Enterprise Module for Server Applications 15	krb5-plugin-kdb-ldap >= 1.15.2-4.25 krb5-server >= 1.15.2-4.25
openSUSE Leap 15.0	krb5 >= 1.15.2-lp150.4.4 krb5-32bit >= 1.15.2-lp150.4.4 krb5-server >= 1.15.2-lp150.4.4	Patchnames: openSUSE Leap 15.0 GA krb5-1.15.2-lp150.4.4
openSUSE Tumbleweed	krb5 >= 1.19.2-2.2 krb5-32bit >= 1.19.2-2.2 krb5-client >= 1.19.2-2.2 krb5-devel >= 1.19.2-2.2 krb5-devel-32bit >= 1.19.2-2.2 krb5-plugin-kdb-ldap >= 1.19.2-2.2 krb5-plugin-preauth-otp >= 1.19.2-2.2 krb5-plugin-preauth-pkinit >= 1.19.2-2.2 krb5-plugin-preauth-spake >= 1.19.2-2.2 krb5-server >= 1.19.2-2.2	Patchnames: openSUSE Tumbleweed GA krb5-1.19.2-2.2

---

First public cloud image revisions this CVE is fixed in:

• alibaba/sles-15-sp3-chost-byos-v20210729
• alibaba/sles-15-sp3-chost-byos-v20210827
• amazon/suse-manager-4-2-proxy-byos-v20210924-hvm-ssd-x86_64
• amazon/suse-manager-4-2-server-byos-v20210924-hvm-ssd-x86_64
• amazon/suse-sles-15-sp3-byos-v20210924-hvm-ssd-arm64
• amazon/suse-sles-15-sp3-byos-v20210924-hvm-ssd-x86_64
• amazon/suse-sles-15-sp3-chost-byos-v20210729-hvm-ssd-x86_64
• amazon/suse-sles-15-sp3-chost-byos-v20210827-hvm-ssd-x86_64
• amazon/suse-sles-15-sp3-v20210924-ecs-hvm-ssd-x86_64
• amazon/suse-sles-15-sp3-v20210924-hvm-ssd-arm64
• amazon/suse-sles-15-sp3-v20210924-hvm-ssd-x86_64
• amazon/suse-sles-hpc-15-sp3-byos-v20210924-hvm-ssd-x86_64
• amazon/suse-sles-sap-15-sp3-byos-v20210924-hvm-ssd-x86_64
• google/sles-15-sp3-byos-v20210812
• google/sles-15-sp3-chost-byos-v20210729
• google/sles-15-sp3-chost-byos-v20210827
• google/sles-15-sp3-sap-byos-v20210812
• google/sles-15-sp3-sap-v20210812
• google/sles-15-sp3-sapcal-v20210812
• google/sles-15-sp3-v20210812
• google/suse-manager-4-2-proxy-byos-v20210812
• google/suse-manager-4-2-server-byos-v20210812
• microsoft/suse-manager-4-2-proxy-byos-v20210924
• microsoft/suse-manager-4-2-server-byos-v20210924
• microsoft/suse-sles-15-sp3-basic-v20210924
• microsoft/suse-sles-15-sp3-byos-v20210924
• microsoft/suse-sles-15-sp3-chost-byos-v20210729
• microsoft/suse-sles-15-sp3-chost-byos-v20210827
• microsoft/suse-sles-15-sp3-hpc-byos-v20210924
• microsoft/suse-sles-15-sp3-hpc-v20210924
• microsoft/suse-sles-15-sp3-v20210924
• microsoft/suse-sles-sap-15-sp3-byos-v20210924
• microsoft/suse-sles-sap-15-sp3-v20210924

---

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s)	Source package	State
Magnum Orchestration	krb5	Not affected
SUSE Linux Enterprise Desktop 12 SP2	krb5	Affected
SUSE Linux Enterprise High Performance Computing 15 LTSS	krb5	Already fixed
SUSE Linux Enterprise Server 11 SP3 LTSS	krb5	Not affected
SUSE Linux Enterprise Server 11 SP4	krb5	Not affected
SUSE Linux Enterprise Server 12 LTSS	krb5	Not affected
SUSE Linux Enterprise Server 12 SP1 LTSS	krb5	Not affected
SUSE Linux Enterprise Server 12 SP2	krb5	Not affected
SUSE Linux Enterprise Server 15 ESPOS	krb5	Already fixed
SUSE Linux Enterprise Server 15 LTSS	krb5	Already fixed
SUSE Linux Enterprise Server for SAP Applications 15	krb5	Already fixed
SUSE Linux Enterprise Software Development Kit 11 SP4	krb5	Not affected
SUSE Linux Enterprise Software Development Kit 12 SP2	krb5	Not affected