Upstream information

CVE-2019-12209 at MITRE

Description

Yubico pam-u2f 1.0.7 attempts parsing of the configured authfile (default $HOME/.config/Yubico/u2f_keys) as root (unless openasuser was enabled), and does not properly verify that the path lacks symlinks pointing to other files on the system owned by root. If the debug option is enabled in the PAM configuration, part of the file contents of a symlink target will be logged, possibly revealing sensitive information.

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 5
Vector AV:N/AC:L/Au:N/C:P/I:N/A:N
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 7.5 4.6
Vector AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Access Vector Network Physical
Access Complexity Low Low
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact High High
Integrity Impact None None
Availability Impact None None
SUSE Bugzilla entries: 1087061 [RESOLVED / FIXED], 1135727 [IN_PROGRESS], 1135729 [IN_PROGRESS]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise Desktop 12 SP4
  • libu2f-host >= 1.1.6-3.5.1
  • libu2f-host0 >= 1.1.6-3.5.1
  • pam_u2f >= 1.0.8-3.3.1
Patchnames:
SUSE-SLE-DESKTOP-12-SP4-2019-1749
SUSE Linux Enterprise Module for Basesystem 15
  • libu2f-host >= 1.1.6-3.6.1
  • libu2f-host-devel >= 1.1.6-3.6.1
  • libu2f-host0 >= 1.1.6-3.6.1
  • pam_u2f >= 1.0.8-3.3.1
Patchnames:
SUSE-SLE-Module-Basesystem-15-2019-1750
SUSE Linux Enterprise Module for Basesystem 15 SP1
  • libu2f-host >= 1.1.6-3.6.1
  • libu2f-host-devel >= 1.1.6-3.6.1
  • libu2f-host0 >= 1.1.6-3.6.1
  • pam_u2f >= 1.0.8-3.3.1
Patchnames:
SUSE-SLE-Module-Basesystem-15-SP1-2019-1750
SUSE Linux Enterprise Module for Open Buildservice Development Tools 15
  • libu2f-host >= 1.1.6-3.6.1
  • libu2f-host-doc >= 1.1.6-3.6.1
  • u2f-host >= 1.1.6-3.6.1
Patchnames:
SUSE-SLE-Module-Development-Tools-OBS-15-2019-1750
SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 SP1
  • libu2f-host >= 1.1.6-3.6.1
  • libu2f-host-doc >= 1.1.6-3.6.1
  • u2f-host >= 1.1.6-3.6.1
Patchnames:
SUSE-SLE-Module-Development-Tools-OBS-15-SP1-2019-1750
SUSE Linux Enterprise Server 12 SP4
  • libu2f-host >= 1.1.6-3.5.1
  • libu2f-host0 >= 1.1.6-3.5.1
  • pam_u2f >= 1.0.8-3.3.1
Patchnames:
SUSE-SLE-SERVER-12-SP4-2019-1749
SUSE Linux Enterprise Server for SAP Applications 12 SP4
  • libu2f-host >= 1.1.6-3.5.1
  • libu2f-host0 >= 1.1.6-3.5.1
  • pam_u2f >= 1.0.8-3.3.1
Patchnames:
SUSE-SLE-SERVER-12-SP4-2019-1749
openSUSE Leap 15.0
  • libu2f-host >= 1.1.6-lp150.10.1
  • libu2f-host-debuginfo >= 1.1.6-lp150.10.1
  • libu2f-host-debugsource >= 1.1.6-lp150.10.1
  • libu2f-host-devel >= 1.1.6-lp150.10.1
  • libu2f-host-doc >= 1.1.6-lp150.10.1
  • libu2f-host0 >= 1.1.6-lp150.10.1
  • libu2f-host0-debuginfo >= 1.1.6-lp150.10.1
  • pam_u2f >= 1.0.8-lp150.7.1
  • pam_u2f-debuginfo >= 1.0.8-lp150.7.1
  • pam_u2f-debugsource >= 1.0.8-lp150.7.1
  • u2f-host >= 1.1.6-lp150.10.1
  • u2f-host-debuginfo >= 1.1.6-lp150.10.1
Patchnames:
openSUSE-2019-1725
openSUSE Leap 15.1
  • libu2f-host >= 1.1.6-lp151.2.6.1
  • libu2f-host-debuginfo >= 1.1.6-lp151.2.6.1
  • libu2f-host-debugsource >= 1.1.6-lp151.2.6.1
  • libu2f-host-devel >= 1.1.6-lp151.2.6.1
  • libu2f-host-doc >= 1.1.6-lp151.2.6.1
  • libu2f-host0 >= 1.1.6-lp151.2.6.1
  • libu2f-host0-debuginfo >= 1.1.6-lp151.2.6.1
  • pam_u2f >= 1.0.8-lp151.2.3.1
  • pam_u2f-debuginfo >= 1.0.8-lp151.2.3.1
  • pam_u2f-debugsource >= 1.0.8-lp151.2.3.1
  • u2f-host >= 1.1.6-lp151.2.6.1
  • u2f-host-debuginfo >= 1.1.6-lp151.2.6.1
Patchnames:
openSUSE-2019-1708


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 pam_u2f Released
SUSE Linux Enterprise High Performance Computing 12 pam_u2f Released
SUSE Linux Enterprise Module for Basesystem 15 GA pam_u2f Released
SUSE Linux Enterprise Module for Basesystem 15 SP1 pam_u2f Released
SUSE Linux Enterprise Server 12 SP4 pam_u2f Released
SUSE Linux Enterprise Server for SAP Applications 12 SP4 pam_u2f Released