Important kernel security update: New kernel 2.6.32-042stab137.1; Virtuozzo 6.0 Update 12 Hotfix 39 (6.0.12-3738)¶
Issue date: 2019-04-30
Applies to: Virtuozzo 6.0
Virtuozzo Advisory ID: VZA-2019-033
1. Overview¶
This update provides a new kernel 2.6.32-042stab137.1 for Virtuozzo 6.0 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¶
Install the update by running ‘yum update’ and rebooting the host.
5. References¶
The JSON file with the list of new and updated packages is available at https://docs.virtuozzo.com/vza/VZA-2019-033.json.