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.

This update for libu2f-host and pam_u2f to version 1.0.8 fixes the following issues :

Security issues fixed for libu2f-host :

  - CVE-2019-9578: Fixed a memory leak due to a wrong parse     of init's response (bsc#1128140).

Security issues fixed for pam_u2f :

  - CVE-2019-12209: Fixed an issue where symlinks in the     user's directory were followed (bsc#1135729).

  - CVE-2019-12210: Fixed file descriptor leaks     (bsc#1135727).

This update was imported from the SUSE:SLE-15:Update update project.

This update for libu2f-host and pam_u2f to version 1.0.8 fixes the following issues :

Security issues fixed for libu2f-host :

CVE-2019-9578: Fixed a memory leak due to a wrong parse of init's response (bsc#1128140).

Security issues fixed for pam_u2f: CVE-2019-12209: Fixed an issue where symlinks in the user's directory were followed (bsc#1135729).

CVE-2019-12210: Fixed file descriptor leaks (bsc#1135727).

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for libu2f-host and pam_u2f to version 1.0.8 fixes the following issues :

Security issues fixed for libu2f-host :

CVE-2019-9578: Fixed a memory leak due to a wrong parse of init's response (bsc#1128140).

CVE-2018-20340: Fixed an unchecked buffer, which could allow a buffer overflow with a custom made malicious USB device (bsc#1124781).

Security issues fixed for pam_u2f: CVE-2019-12209: Fixed an issue where symlinks in the user's directory were followed (bsc#1135729).

CVE-2019-12210: Fixed file descriptor leaks (bsc#1135727).

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

New upstream release Fixes Debug file descriptor leak CVE-2019-1221 Fixes insecure debug file handling CVE-2019-1220

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
126889	openSUSE Security Update : libu2f-host / pam_u2f (openSUSE-2019-1725)	Nessus	SuSE Local Security Checks	high
126883	openSUSE Security Update : libu2f-host / pam_u2f (openSUSE-2019-1708)	Nessus	SuSE Local Security Checks	high
126502	SUSE SLED15 / SLES15 Security Update : libu2f-host, pam_u2f (SUSE-SU-2019:1750-1)	Nessus	SuSE Local Security Checks	high
126501	SUSE SLED12 / SLES12 Security Update : libu2f-host (SUSE-SU-2019:1749-1)	Nessus	SuSE Local Security Checks	high
126056	Fedora 30 : pam-u2f (2019-b6d3c8b0a8)	Nessus	Fedora Local Security Checks	high

Detections

Analytics

CVE-2019-12209

high

Tenable Plugins

high

high

high

high

high