Upstream information

CVE-2019-16905 at MITRE

Description

OpenSSH 7.7 through 7.9 and 8.x before 8.1, when compiled with an experimental key type, has a pre-authentication integer overflow if a client or server is configured to use a crafted XMSS key. This leads to memory corruption and local code execution because of an error in the XMSS key parsing algorithm. NOTE: the XMSS implementation is considered experimental in all released OpenSSH versions, and there is no supported way to enable it when building portable OpenSSH.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 4.4
Vector AV:L/AC:M/Au:N/C:P/I:P/A:P
Access Vector Local
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database
Base Score 7.8
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Access Vector Local
Access Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
CVSSv3 Version 3.1
SUSE Bugzilla entry: 1153537 [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Please note that this evaluation state might be work in progress, incomplete or outdated.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.

Product(s) Source package State
SUSE CaaS Platform 3.0 openssh Not affected
SUSE Linux Enterprise Desktop 12 SP4 openssh Not affected
SUSE Linux Enterprise High Performance Computing 12 SP4 openssh Not affected
SUSE Linux Enterprise Module for Basesystem 15 openssh Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP1 openssh Not affected
SUSE Linux Enterprise Module for Server Applications 15 openssh Not affected
SUSE Linux Enterprise Module for Server Applications 15 SP1 openssh Not affected
SUSE Linux Enterprise Server 11 SP4 LTSS openssh Not affected
SUSE Linux Enterprise Server 12 SP1 LTSS openssh Not affected
SUSE Linux Enterprise Server 12 SP2 LTSS openssh Not affected
SUSE Linux Enterprise Server 12 SP3 LTSS openssh Not affected
SUSE Linux Enterprise Server 12 SP4 openssh Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2 openssh Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP3 openssh Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 openssh Not affected