Important kernel security update: New kernel 2.6.32-042stab137.1 for Virtuozzo Containers for Linux 4.7, Server Bare Metal 5.0¶

1. Overview¶

This update provides a new kernel 2.6.32-042stab137.1 for Virtuozzo Containers for Linux 4.7 and Server Bare Metal 5.0 based on the RHEL 6.10 kernel 2.6.32-754.12.1.el6. The new kernel introduces security and stability fixes.

2. Security Fixes¶

• [Important] A vulnerability was found in the fs/inode.c:inode_init_owner() function logic of the Linux kernel that allows local users to create files with an unintended group ownership and with group execution and SGID permission bits set, in a scenario where a directory is SGID and belongs to a certain group and is writable by a user who is not a member of this group. This can lead to excessive permissions granted in case when they should not. (CVE-2018-13405)

3. Bug Fixes¶

• Minor ploop improvements.

4. Installing the Update¶

The update is only available for customers subscribed to the Extended Lifecycle Support (ELS) program. Download and install the update using the vzup2date utility included in the distribution. Reboot the host to apply the update.

5. References¶

• https://access.redhat.com/errata/RHSA-2019:0717

The JSON file with the list of new and updated packages is available at https://docs.virtuozzo.com/vza/VZA-2019-032.json.