RHSA-2017:1482: Important: kernel security update
The kernel packages contain the Linux kernel, the core of any Linux operatingsystem.Security Fix(es): A flaw was found in the way memory was being allocated on the stack for user space binaries. If heap (or different memory region) and stack memory regionswere adjacent to each other, an attacker could use this flaw to jump over thestack guard gap, cause controlled memory corruption on process stack or theadjacent memory region, and thus increase their privileges on the system. Thisis a kernel-side mitigation which increases the stack guard gap size from onepage to 1 MiB to make successful exploitation of this issue more difficult.(CVE-2017-1000364, Important)Red Hat would like to thank Qualys Research Labs for reporting this issue.
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Frequently Asked Questions
What is the severity of RHSA-2017:1482?
The severity of RHSA-2017:1482 is classified as important.
How do I fix RHSA-2017:1482?
To fix RHSA-2017:1482, update to the kernel package version 2.6.18-420.el5.
What systems are affected by RHSA-2017:1482?
RHSA-2017:1482 affects systems running the kernel version 2.6.18-420.el5 on Red Hat Enterprise Linux.
What type of vulnerability is addressed in RHSA-2017:1482?
RHSA-2017:1482 addresses a flaw in user space binary stack memory allocation.
Is a system restart required after applying the RHSA-2017:1482 update?
Yes, a system restart is typically required to fully apply updates related to the kernel.