Upstream information

CVE-2020-10595 at MITRE

Description

pam-krb5 before 4.9 has a buffer overflow that might cause remote code execution in situations involving supplemental prompting by a Kerberos library. It may overflow a buffer provided by the underlying Kerberos library by a single '\0' byte if an attacker responds to a prompt with an answer of a carefully chosen length. The effect may range from heap corruption to stack corruption depending on the structure of the underlying Kerberos library, with unknown effects but possibly including code execution. This code path is not used for normal authentication, but only when the Kerberos library does supplemental prompting, such as with PKINIT or when using the non-standard no_prompt PAM configuration option.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having critical severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 7.5
Vector AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database
Base Score 9.8
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
CVSSv3 Version 3.1
SUSE Bugzilla entry: 1167505 [RESOLVED / INVALID]

No SUSE Security Announcements cross referenced.


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Please note that this evaluation state might be work in progress, incomplete or outdated.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. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Enterprise Storage 7.1 pam_krb5 Unsupported
SUSE Linux Enterprise Desktop 15 SP5 pam_krb5 Unsupported
SUSE Linux Enterprise High Performance Computing 12 SP5 pam_krb5 Not affected
SUSE Linux Enterprise High Performance Computing 15 SP5 pam_krb5 Unsupported
SUSE Linux Enterprise Module for Basesystem 15 SP5 pam_krb5 Unsupported
SUSE Linux Enterprise Real Time 15 SP3 pam_krb5 Unsupported
SUSE Linux Enterprise Server 12 SP5 pam_krb5 Not affected
SUSE Linux Enterprise Server 12-LTSS pam_krb5 Not affected
SUSE Linux Enterprise Server 15 SP5 pam_krb5 Unsupported
SUSE Linux Enterprise Server for SAP Applications 12 SP5 pam_krb5 Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP4 pam_krb5 Unsupported
SUSE Linux Enterprise Server for SAP Applications 15 SP5 pam_krb5 Unsupported
SUSE Manager Proxy 4.3 pam_krb5 Unsupported
SUSE Manager Retail Branch Server 4.3 pam_krb5 Unsupported
SUSE Manager Server 4.3 pam_krb5 Unsupported
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise Desktop 15 SP4 pam_krb5 Unsupported
SUSE Linux Enterprise High Performance Computing 15 pam_krb5 Unsupported
SUSE Linux Enterprise High Performance Computing 15 SP1 pam_krb5 Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS pam_krb5 Unsupported
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS pam_krb5 Unsupported
SUSE Linux Enterprise High Performance Computing 15 SP2 pam_krb5 Unsupported
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS pam_krb5 Unsupported
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS pam_krb5 Unsupported
SUSE Linux Enterprise High Performance Computing 15 SP3 pam_krb5 Unsupported
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS pam_krb5 Unsupported
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS pam_krb5 Unsupported
SUSE Linux Enterprise High Performance Computing 15 SP4 pam_krb5 Unsupported
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS pam_krb5 Unsupported
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS pam_krb5 Unsupported
SUSE Linux Enterprise High Performance Computing 15-ESPOS pam_krb5 Unsupported
SUSE Linux Enterprise High Performance Computing 15-LTSS pam_krb5 Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP2 pam_krb5 Unsupported
SUSE Linux Enterprise Module for Basesystem 15 SP3 pam_krb5 Unsupported
SUSE Linux Enterprise Module for Basesystem 15 SP4 pam_krb5 Unsupported
SUSE Linux Enterprise Server 12 SP2-BCL pam_krb5 Not affected
SUSE Linux Enterprise Server 15 SP2 pam_krb5 Unsupported
SUSE Linux Enterprise Server 15 SP2-LTSS pam_krb5 Unsupported
SUSE Linux Enterprise Server 15 SP3 pam_krb5 Unsupported
SUSE Linux Enterprise Server 15 SP3-LTSS pam_krb5 Unsupported
SUSE Linux Enterprise Server 15 SP4 pam_krb5 Unsupported
SUSE Linux Enterprise Server 15 SP4-LTSS pam_krb5 Unsupported
SUSE Linux Enterprise Server 15-ESPOS pam_krb5 Not affected
SUSE Linux Enterprise Server for SAP Applications 15 pam_krb5 Unsupported
SUSE Linux Enterprise Server for SAP Applications 15 SP1 pam_krb5 Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP2 pam_krb5 Unsupported
SUSE Linux Enterprise Server for SAP Applications 15 SP3 pam_krb5 Unsupported
Products past their end of life and not receiving proactive updates anymore.
HPE Helion OpenStack 8 pam_krb5 Not affected
SUSE CaaS Platform 4.0 pam_krb5 Unsupported
SUSE Enterprise Storage 6 pam_krb5 Not affected
SUSE Enterprise Storage 7 pam_krb5 Unsupported
SUSE Linux Enterprise Desktop 12 pam_krb5 Not affected
SUSE Linux Enterprise Desktop 12 SP1 pam_krb5 Not affected
SUSE Linux Enterprise Desktop 12 SP2 pam_krb5 Not affected
SUSE Linux Enterprise Desktop 12 SP3 pam_krb5 Not affected
SUSE Linux Enterprise Desktop 12 SP4 pam_krb5 Not affected
SUSE Linux Enterprise Desktop 15 pam_krb5 Unsupported
SUSE Linux Enterprise Desktop 15 SP1 pam_krb5 Not affected
SUSE Linux Enterprise Desktop 15 SP2 pam_krb5 Unsupported
SUSE Linux Enterprise Desktop 15 SP3 pam_krb5 Unsupported
SUSE Linux Enterprise High Performance Computing 12 SP4 pam_krb5 Not affected
SUSE Linux Enterprise Module for Basesystem 15 pam_krb5 Unsupported
SUSE Linux Enterprise Module for Basesystem 15 SP1 pam_krb5 Not affected
SUSE Linux Enterprise Real Time 15 SP2 pam_krb5 Unsupported
SUSE Linux Enterprise Real Time 15 SP4 pam_krb5 Unsupported
SUSE Linux Enterprise Server 11 SP3 pam_krb5 Not affected
SUSE Linux Enterprise Server 11 SP3-LTSS pam_krb5 Not affected
SUSE Linux Enterprise Server 11 SP4 pam_krb5 Not affected
SUSE Linux Enterprise Server 11 SP4 LTSS pam_krb5 Not affected
SUSE Linux Enterprise Server 11 SP4-LTSS pam_krb5 Not affected
SUSE Linux Enterprise Server 12 pam_krb5 Not affected
SUSE Linux Enterprise Server 12 SP1 pam_krb5 Not affected
SUSE Linux Enterprise Server 12 SP1-LTSS pam_krb5 Not affected
SUSE Linux Enterprise Server 12 SP2 pam_krb5 Not affected
SUSE Linux Enterprise Server 12 SP2-ESPOS pam_krb5 Not affected
SUSE Linux Enterprise Server 12 SP2-LTSS pam_krb5 Not affected
SUSE Linux Enterprise Server 12 SP3 pam_krb5 Not affected
SUSE Linux Enterprise Server 12 SP3-BCL pam_krb5 Not affected
SUSE Linux Enterprise Server 12 SP3-ESPOS pam_krb5 Not affected
SUSE Linux Enterprise Server 12 SP3-LTSS pam_krb5 Not affected
SUSE Linux Enterprise Server 12 SP4 pam_krb5 Not affected
SUSE Linux Enterprise Server 12 SP4-ESPOS pam_krb5 Not affected
SUSE Linux Enterprise Server 12 SP4-LTSS pam_krb5 Not affected
SUSE Linux Enterprise Server 15 pam_krb5 Unsupported
SUSE Linux Enterprise Server 15 SP1 pam_krb5 Not affected
SUSE Linux Enterprise Server 15 SP1-BCL pam_krb5 Unsupported
SUSE Linux Enterprise Server 15 SP1-LTSS pam_krb5 Unsupported
SUSE Linux Enterprise Server 15 SP2-BCL pam_krb5 Unsupported
SUSE Linux Enterprise Server 15 SP3-BCL pam_krb5 Unsupported
SUSE Linux Enterprise Server 15-LTSS pam_krb5 Unsupported
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 pam_krb5 Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP1 pam_krb5 Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2 pam_krb5 Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP3 pam_krb5 Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 pam_krb5 Not affected
SUSE Manager Proxy 4.0 pam_krb5 Not affected
SUSE Manager Proxy 4.1 pam_krb5 Unsupported
SUSE Manager Proxy 4.2 pam_krb5 Unsupported
SUSE Manager Retail Branch Server 4.0 pam_krb5 Not affected
SUSE Manager Retail Branch Server 4.1 pam_krb5 Unsupported
SUSE Manager Retail Branch Server 4.2 pam_krb5 Unsupported
SUSE Manager Server 4.0 pam_krb5 Not affected
SUSE Manager Server 4.1 pam_krb5 Unsupported
SUSE Manager Server 4.2 pam_krb5 Unsupported
SUSE OpenStack Cloud 7 pam_krb5 Not affected
SUSE OpenStack Cloud 8 pam_krb5 Not affected
SUSE OpenStack Cloud 9 pam_krb5 Not affected
SUSE OpenStack Cloud Crowbar 8 pam_krb5 Not affected
SUSE OpenStack Cloud Crowbar 9 pam_krb5 Not affected


SUSE Timeline for this CVE

CVE page created: Tue Mar 24 09:47:51 2020
CVE page last modified: Thu Feb 22 17:12:48 2024