7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.2 High
CVSS2
Access Vector
LOCAL
Access 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
Linux kernel is vulnerable to improper access control. The vulnerability exists because the mm subsystem in the Linux kernel does not properly enforce the CONFIG_STRICT_DEVMEM protection mechanism. Local users could read or write to kernel memory locations in the first megabyte (and bypass slab-allocation access restrictions) via an application that opens the /dev/mem file, related to arch/x86/mm/init.c and drivers/char/mem.c.
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a4866aa812518ed1a37d8ea0c881dc946409de94
www.debian.org/security/2017/dsa-3945
www.openwall.com/lists/oss-security/2017/04/16/4
www.securityfocus.com/bid/97690
access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/7.4_Release_Notes/index.html
access.redhat.com/errata/RHSA-2017:1842
access.redhat.com/errata/RHSA-2017:2077
access.redhat.com/errata/RHSA-2017:2669
access.redhat.com/errata/RHSA-2018:1854
access.redhat.com/security/cve/CVE-2016-10741
access.redhat.com/security/cve/CVE-2017-2584
access.redhat.com/security/cve/CVE-2017-5551
access.redhat.com/security/cve/CVE-2017-7495
access.redhat.com/security/updates/classification/#important
bugzilla.redhat.com/show_bug.cgi?id=1377840
bugzilla.redhat.com/show_bug.cgi?id=1378172
bugzilla.redhat.com/show_bug.cgi?id=1389215
bugzilla.redhat.com/show_bug.cgi?id=1400188
bugzilla.redhat.com/show_bug.cgi?id=1414052
bugzilla.redhat.com/show_bug.cgi?id=1421801
bugzilla.redhat.com/show_bug.cgi?id=1421810
bugzilla.redhat.com/show_bug.cgi?id=1425780
bugzilla.redhat.com/show_bug.cgi?id=1426661
bugzilla.redhat.com/show_bug.cgi?id=1427626
bugzilla.redhat.com/show_bug.cgi?id=1427647
bugzilla.redhat.com/show_bug.cgi?id=1427991
bugzilla.redhat.com/show_bug.cgi?id=1428890
bugzilla.redhat.com/show_bug.cgi?id=1428943
bugzilla.redhat.com/show_bug.cgi?id=1429610
bugzilla.redhat.com/show_bug.cgi?id=1429640
bugzilla.redhat.com/show_bug.cgi?id=1429951
bugzilla.redhat.com/show_bug.cgi?id=1429977
bugzilla.redhat.com/show_bug.cgi?id=1430023
bugzilla.redhat.com/show_bug.cgi?id=1430038
bugzilla.redhat.com/show_bug.cgi?id=1430074
bugzilla.redhat.com/show_bug.cgi?id=1430353
bugzilla.redhat.com/show_bug.cgi?id=1430926
bugzilla.redhat.com/show_bug.cgi?id=1430946
bugzilla.redhat.com/show_bug.cgi?id=1431104
bugzilla.redhat.com/show_bug.cgi?id=1432118
bugzilla.redhat.com/show_bug.cgi?id=1434616
bugzilla.redhat.com/show_bug.cgi?id=1438512
bugzilla.redhat.com/show_bug.cgi?id=1441552
bugzilla.redhat.com/show_bug.cgi?id=1452240
bugzilla.redhat.com/show_bug.cgi?id=1459056
git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=b8f254aa17f720053054c4ecff3920973a83b9d6
github.com/torvalds/linux/commit/a4866aa812518ed1a37d8ea0c881dc946409de94
usn.ubuntu.com/3583-1/
usn.ubuntu.com/3583-2/
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.2 High
CVSS2
Access Vector
LOCAL
Access 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