CVE-2019-12209

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.
Link Following
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 69%
Affected Products (NVD)
VendorProductVersion
yubicopam-u2f
1.0.7
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
pam-u2f
bookworm
1.1.0-1.1
fixed
bullseye
1.1.0-1.1
fixed
sid
1.3.0-1
fixed
stretch
no-dsa
trixie
1.3.0-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
pam-u2f
bionic
needed
cosmic
ignored
disco
ignored
eoan
not-affected
focal
not-affected
groovy
not-affected
hirsute
not-affected
impish
not-affected
jammy
not-affected
kinetic
not-affected
lunar
not-affected
mantic
not-affected
noble
not-affected
trusty
dne
xenial
needed
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
libu2f-host-devel
suse enterprise desktop 15
1.1.6-3.6.1
fixed
suse enterprise desktop 15 SP1
1.1.6-3.6.1
fixed
suse enterprise desktop 15 SP2
1.1.6-3.6.1
fixed
suse enterprise desktop 15 SP3
1.1.6-3.6.1
fixed
suse enterprise desktop 15 SP4
1.1.6-3.6.1
fixed
suse enterprise desktop 15 SP5
1.1.6-3.6.1
fixed
suse enterprise sap 15
1.1.6-3.6.1
fixed
suse enterprise sap 15 SP1
1.1.6-3.6.1
fixed
suse enterprise sap 15 SP2
1.1.6-3.6.1
fixed
suse enterprise sap 15 SP3
1.1.6-3.6.1
fixed
suse enterprise sap 15 SP4
1.1.6-3.6.1
fixed
suse enterprise sap 15 SP5
1.1.6-3.6.1
fixed
suse enterprise server 15
1.1.6-3.6.1
fixed
suse enterprise server 15 SP1
1.1.6-3.6.1
fixed
suse enterprise server 15 SP2
1.1.6-3.6.1
fixed
suse enterprise server 15 SP3
1.1.6-3.6.1
fixed
suse enterprise server 15 SP4
1.1.6-3.6.1
fixed
suse enterprise server 15 SP5
1.1.6-3.6.1
fixed
libu2f-host0
suse enterprise desktop 15
1.1.6-3.6.1
fixed
suse enterprise desktop 15 SP1
1.1.6-3.6.1
fixed
suse enterprise desktop 15 SP2
1.1.6-3.6.1
fixed
suse enterprise desktop 15 SP3
1.1.6-3.6.1
fixed
suse enterprise desktop 15 SP4
1.1.6-3.6.1
fixed
suse enterprise desktop 15 SP5
1.1.6-3.6.1
fixed
suse enterprise sap 12 SP4
1.1.6-3.5.1
fixed
suse enterprise sap 15
1.1.6-3.6.1
fixed
suse enterprise sap 15 SP1
1.1.6-3.6.1
fixed
suse enterprise sap 15 SP2
1.1.6-3.6.1
fixed
suse enterprise sap 15 SP3
1.1.6-3.6.1
fixed
suse enterprise sap 15 SP4
1.1.6-3.6.1
fixed
suse enterprise sap 15 SP5
1.1.6-3.6.1
fixed
suse enterprise server 12 SP4
1.1.6-3.5.1
fixed
suse enterprise server 15
1.1.6-3.6.1
fixed
suse enterprise server 15 SP1
1.1.6-3.6.1
fixed
suse enterprise server 15 SP2
1.1.6-3.6.1
fixed
suse enterprise server 15 SP3
1.1.6-3.6.1
fixed
suse enterprise server 15 SP4
1.1.6-3.6.1
fixed
suse enterprise server 15 SP5
1.1.6-3.6.1
fixed
pam_u2f
suse enterprise desktop 15
1.0.8-3.3.1
fixed
suse enterprise desktop 15 SP1
1.0.8-3.3.1
fixed
suse enterprise desktop 15 SP2
1.0.8-3.3.1
fixed
suse enterprise desktop 15 SP3
1.0.8-3.3.1
fixed
suse enterprise desktop 15 SP4
1.2.0-150400.2.4
fixed
suse enterprise desktop 15 SP5
1.2.0-150400.2.4
fixed
suse enterprise sap 12 SP4
1.0.8-3.3.1
fixed
suse enterprise sap 15
1.0.8-3.3.1
fixed
suse enterprise sap 15 SP1
1.0.8-3.3.1
fixed
suse enterprise sap 15 SP2
1.0.8-3.3.1
fixed
suse enterprise sap 15 SP3
1.0.8-3.3.1
fixed
suse enterprise sap 15 SP4
1.2.0-150400.2.4
fixed
suse enterprise sap 15 SP5
1.2.0-150400.2.4
fixed
suse enterprise server 12 SP4
1.0.8-3.3.1
fixed
suse enterprise server 15
1.0.8-3.3.1
fixed
suse enterprise server 15 SP1
1.0.8-3.3.1
fixed
suse enterprise server 15 SP2
1.0.8-3.3.1
fixed
suse enterprise server 15 SP3
1.0.8-3.3.1
fixed
suse enterprise server 15 SP4
1.2.0-150400.2.4
fixed
suse enterprise server 15 SP5
1.2.0-150400.2.4
fixed
Common Weakness Enumeration
References
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00012.html
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00018.html
http://www.openwall.com/lists/oss-security/2019/06/05/1
https://developers.yubico.com/pam-u2f/Release_Notes.html
https://github.com/Yubico/pam-u2f/commit/7db3386fcdb454e33a3ea30dcfb8e8960d4c3aa3
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5FOR4ADC356JPCHAJI5UXZORLC3VNBPS/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZCGU6UQLI3ZTW3UYCTMQW7VDL5M4LCWR/
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00012.html
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00018.html
http://www.openwall.com/lists/oss-security/2019/06/05/1
https://developers.yubico.com/pam-u2f/Release_Notes.html
https://github.com/Yubico/pam-u2f/commit/7db3386fcdb454e33a3ea30dcfb8e8960d4c3aa3
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5FOR4ADC356JPCHAJI5UXZORLC3VNBPS/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZCGU6UQLI3ZTW3UYCTMQW7VDL5M4LCWR/