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Home > Cyber Security > New security updates for RHE 7 and CentOS 7

New security updates for RHE 7 and CentOS 7

Seda Nur Cinar by Seda Nur Cinar
December 6, 2019 8:56 pm
in Cyber Security
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New Kernel security update is available for Red Hat Enterprise Linux 7 and CentOS Linux 7
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Important kernel security updates for Red Hat Enterprise Linux 7 and CentOS Linux 7 operating system series that fix two security vulnerabilities, and several bugs have been released.

Red Hat and CentOS introduced kernel security updates for their operating systems. Mainly, these updates came to patch two vulnerabilities, namely CVE-2019-14821, an out-of-bounds memory access issue via MMIO ring buffer discovered in Linux kernel’s KVM hypervisor, and CVE-2019-15239, a flaw that could allow a local attacker to trigger multiple use-after-free conditions, which may lead to a kernel crash or potentially in privilege escalation.

  • Recommended Content: How to apply Linux Kernel live security updates on Red Hat or CentOS?
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Fixing several bugs

In addition to this, the kernel update fixes several bugs, including missing SCSI VPD information for NVMe drives that breaks InfoScale, NULL pointer dereference at check_preempt_wakeup+0x109, panic in pick_next_task_rt, “Detected Tx Unit Hang” error with adapter reset, broken load balancing over VF LAG configuration, security issues on crypto vmx driver, XFS hangs on acquiring xfs_buf semaphore, single CPU VM hangs during open_posix_testsuite, and many others.

Read also:  Backdoor account found in Zyxel devices

The kernel security update is available for Red Hat Enterprise Linux Server 7, Red Hat Enterprise Linux Server – AUS 7.7, Red Hat Enterprise Linux Workstation 7, Red Hat Enterprise Linux Desktop 7, Red Hat Enterprise Linux for IBM z Systems 7, Red Hat Enterprise Linux for Power, big endian 7, Red Hat Enterprise Linux for Scientific Computing 7, Red Hat Enterprise Linux EUS Compute Node 7.7, and Red Hat Enterprise Linux for Power, little endian 7 operating system series.

It is also needed to note that Red Hat Virtualization Host 4, Red Hat Enterprise Linux Server – TUS 7.7, Red Hat Enterprise Linux Server (for IBM Power LE) – Update Services for SAP Solutions 7.7, Red Hat Enterprise Linux Server – Update Services for SAP Solutions 7.7, and CentOS Linux 7 systems are affected by these updates. It is recommended users to update their systems immediately to kernel-3.10.0-1062.7.1.el7.x86_64, to check the new kernel version was successfully applied, and then to reboot their machines.

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Tags: CentOSCVE-2019-14821CVE-2019-15239Linux KernelRed Hat
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Seda Nur Cinar

Seda Nur Cinar

Editor of Cloud7, Seda is a Linux and opensource enthusiast, security researcher and a web application developer.

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