High severity7.5NVD Advisory· Published Jun 4, 2019· Updated Jun 17, 2026
CVE-2019-12209
CVE-2019-12209
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
18- Yubico/pam-u2fdescription
- osv-coords15 versionspkg:rpm/opensuse/libu2f-host&distro=openSUSE%20Leap%2015.0pkg:rpm/opensuse/libu2f-host&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/pam_u2f&distro=openSUSE%20Leap%2015.0pkg:rpm/opensuse/pam_u2f&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/pam_u2f&distro=openSUSE%20Tumbleweedpkg:rpm/suse/libu2f-host&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP4pkg:rpm/suse/libu2f-host&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015pkg:rpm/suse/libu2f-host&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP1pkg:rpm/suse/libu2f-host&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4pkg:rpm/suse/libu2f-host&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/pam_u2f&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP4pkg:rpm/suse/pam_u2f&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015pkg:rpm/suse/pam_u2f&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP1pkg:rpm/suse/pam_u2f&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4pkg:rpm/suse/pam_u2f&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4
< 1.1.6-lp150.10.1+ 14 more
- (no CPE)range: < 1.1.6-lp150.10.1
- (no CPE)range: < 1.1.6-lp151.2.6.1
- (no CPE)range: < 1.0.8-lp150.7.1
- (no CPE)range: < 1.0.8-lp151.2.3.1
- (no CPE)range: < 1.1.1-1.3
- (no CPE)range: < 1.1.6-3.5.1
- (no CPE)range: < 1.1.6-3.6.1
- (no CPE)range: < 1.1.6-3.6.1
- (no CPE)range: < 1.1.6-3.5.1
- (no CPE)range: < 1.1.6-3.5.1
- (no CPE)range: < 1.0.8-3.3.1
- (no CPE)range: < 1.0.8-3.3.1
- (no CPE)range: < 1.0.8-3.3.1
- (no CPE)range: < 1.0.8-3.3.1
- (no CPE)range: < 1.0.8-3.3.1
Patches
Vulnerability mechanics
References
7- github.com/Yubico/pam-u2f/commit/7db3386fcdb454e33a3ea30dcfb8e8960d4c3aa3nvdPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2019/06/05/1nvdExploitMailing ListThird Party Advisory
- developers.yubico.com/pam-u2f/Release_Notes.htmlnvdRelease NotesVendor Advisory
- lists.opensuse.org/opensuse-security-announce/2019-07/msg00012.htmlnvd
- lists.opensuse.org/opensuse-security-announce/2019-07/msg00018.htmlnvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5FOR4ADC356JPCHAJI5UXZORLC3VNBPS/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZCGU6UQLI3ZTW3UYCTMQW7VDL5M4LCWR/nvd
News mentions
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