In Yubico pam-u2f 1.0.7, when configured with debug and a custom debug log file is set using debug_file, that file descriptor is not closed when a new process is spawned. This leads to the file descriptor being inherited into the child process; the child process can then read from and write to it. This can leak sensitive information and also, if written to, be used to fill the disk or plant misinformation.

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.

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

Detections

Analytics

CVE-2019-12210

high

Tenable Plugins

high

high

high

high