CentOS and Red Hat announced the availability of its Red Hat Enterprise Linux 7 and CentOS Linux 7 Series operating system an important kernel security updates. It is reported that the update addresses two security vulnerabilities and many other bug.
Specific performance, the new Linux kernel security update fixes the CVE-2019-14821 and CVE-2019-15239 two vulnerabilities. Which, CVE-2019-15239 may allow a local attacker to trigger multiple "use-after-free" conditions, cause a kernel panic or potential privilege escalation.
In addition, the kernel update also addresses several bug, including:
- check_preempt_wakeup + NULL pointer dereferencing at 0x109,
- pick_next_task_rt panic,
- Adapter Reset lead "Tx detected by the unit hangs" Error
- Balance the load on VF LAG Configuration Interrupt
- Encryption security issues on the vmx driver
- Single-CPU VM hangs during open_posix_testsuite
.......
It urged users to install the update to kernel-3.10.0-1062.7.1.el7.x86_64 as soon as possible, and to restart the computer after a successful application of the new kernel version.
Reference News: https://news.softpedia.com/news/red-hat-enterprise-linux-7-and-centos-7-receive-important-kernel-security-update-528457.shtml