CVE-2018-3665

2018-06-1300:00:00

ubuntu.com

5.6 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

4.7 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

NONE

Availability Impact

NONE

AV:L/AC:M/Au:N/C:C/I:N/A:N

0.001 Low

EPSS

Percentile

30.9%

JSON

System software utilizing Lazy FP state restore technique on systems using
Intel Core-based microprocessors may potentially allow a local process to
infer data from another process through a speculative execution side
channel.

Notes

Author	Note
tyhicks	Xenial and Trusty are affected when running on older x86 processors that do not have support for the xsaveopt instruction. You can verify if your system has support for xsaveopt by locating the “xsaveopt” feature listed in the flags section of the /proc/cpuinfo file. Precise is affected on all x86 processors.

OSVersionArchitecturePackageVersionFilename
ubuntu14.04noarchlinux< 3.13.0-153.203UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-130.156UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1024.25UNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1062.71UNKNOWN
ubuntu18.04noarchlinux-hwe-edge< 4.18.0-8.9~18.04.1UNKNOWN
ubuntu16.04noarchlinux-kvm< 4.4.0-1029.34UNKNOWN
ubuntu14.04noarchlinux-lts-xenial< 4.4.0-130.156~14.04.1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	14.04	noarch	linux	< 3.13.0-153.203	UNKNOWN
ubuntu	16.04	noarch	linux	< 4.4.0-130.156	UNKNOWN
ubuntu	14.04	noarch	linux-aws	< 4.4.0-1024.25	UNKNOWN
ubuntu	16.04	noarch	linux-aws	< 4.4.0-1062.71	UNKNOWN
ubuntu	18.04	noarch	linux-hwe-edge	< 4.18.0-8.9~18.04.1	UNKNOWN
ubuntu	16.04	noarch	linux-kvm	< 4.4.0-1029.34	UNKNOWN
ubuntu	14.04	noarch	linux-lts-xenial	< 4.4.0-130.156~14.04.1	UNKNOWN