Upstream information

CVE-2018-20340 at MITRE

Description

Yubico libu2f-host 1.1.6 contains unchecked buffers in devs.c, which could enable a malicious token to exploit a buffer overflow. An attacker could use this to attempt to execute malicious code using a crafted USB device masquerading as a security token on a computer where the affected library is currently in use. It is not possible to perform this attack with a genuine YubiKey.

SUSE information

Overall state of this security issue: Running

This issue is currently rated as having moderate severity.

CVSS v3 Scores
  SUSE
Base Score 6.4
Vector AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Access Vector Physical
Access Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
SUSE Bugzilla entry: 1124781 [NEW]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
openSUSE Leap 42.3
  • libu2f-host >= 1.0.0-5.3.1
  • libu2f-host-debugsource >= 1.0.0-5.3.1
  • libu2f-host-devel >= 1.0.0-5.3.1
  • libu2f-host-doc >= 1.0.0-5.3.1
  • libu2f-host0 >= 1.0.0-5.3.1
  • libu2f-host0-debuginfo >= 1.0.0-5.3.1
  • u2f-host >= 1.0.0-5.3.1
  • u2f-host-debuginfo >= 1.0.0-5.3.1
Patchnames:
openSUSE-2019-199

List of packages in QA

Product(s) Package(s)
SUSE Linux Enterprise Module for Basesystem 15
  • libu2f-host >= 1.1.6-3.3.3
  • libu2f-host-debuginfo >= 1.1.6-3.3.3
  • libu2f-host-debugsource >= 1.1.6-3.3.3
  • libu2f-host-devel >= 1.1.6-3.3.3
  • libu2f-host0 >= 1.1.6-3.3.3
  • libu2f-host0-debuginfo >= 1.1.6-3.3.3
SUSE Linux Enterprise Module for Open Buildservice Development Tools 15
  • libu2f-host >= 1.1.6-3.3.3
  • libu2f-host-debuginfo >= 1.1.6-3.3.3
  • libu2f-host-debugsource >= 1.1.6-3.3.3
  • libu2f-host-doc >= 1.1.6-3.3.3
  • u2f-host >= 1.1.6-3.3.3
  • u2f-host-debuginfo >= 1.1.6-3.3.3


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Please note that this evaluation state might be work in progress, incomplete or outdated.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 Linux Enterprise Desktop 12 SP4 libu2f-host In progress
SUSE Linux Enterprise High Performance Computing 12 libu2f-host In progress
SUSE Linux Enterprise Module for Basesystem 15 GA libu2f-host In progress
SUSE Linux Enterprise Server 12 SP4 libu2f-host In progress
SUSE Linux Enterprise Server for SAP Applications 12 SP4 libu2f-host In progress