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Debian: CVE-2018-14678: linux -- security update

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Debian: CVE-2018-14678: linux -- security update

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
07/28/2018
Created
03/19/2019
Added
10/02/2018
Modified
07/07/2020

Description

An issue was discovered in the Linux kernel through 4.17.11, as used in Xen through 4.11.x. The xen_failsafe_callback entry point in arch/x86/entry/entry_64.S does not properly maintain RBX, which allows local users to cause a denial of service (uninitialized memory usage and system crash). Within Xen, 64-bit x86 PV Linux guest OS users can trigger a guest OS crash or possibly gain privileges.

Solution(s)

  • debian-upgrade-linux

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