CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
98.4%
Issue Overview:
A race condition was found in the way the Linux kernel’s memory subsystem handled the copy-on-write (COW) breakage of private read-only memory mappings. An unprivileged local user could use this flaw to gain write access to otherwise read-only memory mappings and thus increase their privileges on the system.
(Updated 2016-11-10: This advisory was upgraded to Critical.)
Affected Packages:
kernel
Issue Correction:
Run yum update kernel to update your system. You will need to reboot your system in order for the new kernel to be running.
New Packages:
i686:
kernel-4.4.23-31.54.amzn1.i686
kernel-devel-4.4.23-31.54.amzn1.i686
kernel-tools-debuginfo-4.4.23-31.54.amzn1.i686
kernel-tools-devel-4.4.23-31.54.amzn1.i686
kernel-debuginfo-common-i686-4.4.23-31.54.amzn1.i686
perf-4.4.23-31.54.amzn1.i686
kernel-debuginfo-4.4.23-31.54.amzn1.i686
perf-debuginfo-4.4.23-31.54.amzn1.i686
kernel-tools-4.4.23-31.54.amzn1.i686
kernel-headers-4.4.23-31.54.amzn1.i686
noarch:
kernel-doc-4.4.23-31.54.amzn1.noarch
src:
kernel-4.4.23-31.54.amzn1.src
x86_64:
kernel-tools-devel-4.4.23-31.54.amzn1.x86_64
kernel-4.4.23-31.54.amzn1.x86_64
kernel-tools-debuginfo-4.4.23-31.54.amzn1.x86_64
perf-debuginfo-4.4.23-31.54.amzn1.x86_64
kernel-devel-4.4.23-31.54.amzn1.x86_64
kernel-tools-4.4.23-31.54.amzn1.x86_64
perf-4.4.23-31.54.amzn1.x86_64
kernel-debuginfo-4.4.23-31.54.amzn1.x86_64
kernel-headers-4.4.23-31.54.amzn1.x86_64
kernel-debuginfo-common-x86_64-4.4.23-31.54.amzn1.x86_64
Red Hat: CVE-2016-5195
Mitre: CVE-2016-5195
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Amazon Linux | 1 | i686 | kernel | < 4.4.23-31.54.amzn1 | kernel-4.4.23-31.54.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | kernel-devel | < 4.4.23-31.54.amzn1 | kernel-devel-4.4.23-31.54.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | kernel-tools-debuginfo | < 4.4.23-31.54.amzn1 | kernel-tools-debuginfo-4.4.23-31.54.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | kernel-tools-devel | < 4.4.23-31.54.amzn1 | kernel-tools-devel-4.4.23-31.54.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | kernel-debuginfo-common-i686 | < 4.4.23-31.54.amzn1 | kernel-debuginfo-common-i686-4.4.23-31.54.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | perf | < 4.4.23-31.54.amzn1 | perf-4.4.23-31.54.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | kernel-debuginfo | < 4.4.23-31.54.amzn1 | kernel-debuginfo-4.4.23-31.54.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | perf-debuginfo | < 4.4.23-31.54.amzn1 | perf-debuginfo-4.4.23-31.54.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | kernel-tools | < 4.4.23-31.54.amzn1 | kernel-tools-4.4.23-31.54.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | kernel-headers | < 4.4.23-31.54.amzn1 | kernel-headers-4.4.23-31.54.amzn1.i686.rpm |
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
98.4%