RHSA-2018:1346: Important: kernel security and bug fix update
The kernel packages contain the Linux kernel, the core of any Linux operating system.Security Fix(es): hw: cpu: speculative execution permission faults handling (CVE-2017-5754, x86 32-bit) Kernel: error in exception handling leads to DoS (CVE-2018-8897) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.Red Hat would like to thank Google Project Zero for reporting CVE-2017-5754 and Nick Peterson (Everdox Tech LLC) and Andy Lutomirski for reporting CVE-2018-8897.Bug Fix(es): The kernel build requirements have been updated to the GNU Compiler Collection (GCC) compiler version that has the support for Retpolines. The Retpolines mechanism is a software construct that leverages specific knowledge of the underlying hardware to mitigate the branch target injection, also known as Spectre variant 2 vulnerability described in CVE-2017-5715. (BZ#1554253)
Affected Software
Remediation
Event History
Frequently Asked Questions
What vulnerabilities are addressed by RHSA-2018:1346?
RHSA-2018:1346 addresses CVE-2017-5754 related to speculative execution permission faults handling and CVE-2018-8897 which leads to denial of service due to an error in exception handling.
How do I fix RHSA-2018:1346?
To fix RHSA-2018:1346, update the kernel packages to version 2.6.32-573.55.2.el6 or later.
What is the severity level of RHSA-2018:1346?
RHSA-2018:1346 has been rated with an 'Important' severity level.
Which systems are affected by RHSA-2018:1346?
Systems running affected versions of the Linux kernel, specifically those lower than 2.6.32-573.55.2.el6, are vulnerable to RHSA-2018:1346.
What should I do if I cannot apply the patch for RHSA-2018:1346?
If you cannot apply the patch for RHSA-2018:1346, consider implementing workarounds and monitoring for unusual activity until you can safely apply the update.