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:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
0.016 Low
EPSS
Percentile
87.0%
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
A flaw named FragmentSmack was found in the way the Linux kernel handled reassembly of fragmented IPv4 and IPv6 packets. A remote attacker could use this flaw to trigger time and calculation expensive fragment reassembly algorithm by sending specially crafted packets which could lead to a CPU saturation and hence a denial of service on the system. (CVE-2018-5391)
kernel: Integer overflow in Linux’s create_elf_tables function (CVE-2018-14634)
For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.
Red Hat would like to thank Juha-Matti Tilli (Aalto University - Department of Communications and Networking and Nokia Bell Labs) for reporting CVE-2018-5391 and Qualys Research Labs for reporting CVE-2018-14634.
Bug Fix(es):
These updated kernel packages include also numerous bug fixes. Space precludes documenting all of the bug fixes in this advisory. See the descriptions in the related Knowledge Article:
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
RedHat | 6 | ppc64 | kernel-debuginfo | < 2.6.32-754.6.3.el6 | kernel-debuginfo-2.6.32-754.6.3.el6.ppc64.rpm |
RedHat | 6 | x86_64 | kernel-headers | < 2.6.32-754.6.3.el6 | kernel-headers-2.6.32-754.6.3.el6.x86_64.rpm |
RedHat | 6 | x86_64 | kernel-debug-debuginfo | < 2.6.32-754.6.3.el6 | kernel-debug-debuginfo-2.6.32-754.6.3.el6.x86_64.rpm |
RedHat | 6 | i686 | python-perf | < 2.6.32-754.6.3.el6 | python-perf-2.6.32-754.6.3.el6.i686.rpm |
RedHat | 6 | i686 | kernel-debug-devel | < 2.6.32-754.6.3.el6 | kernel-debug-devel-2.6.32-754.6.3.el6.i686.rpm |
RedHat | 6 | noarch | kernel-doc | < 2.6.32-754.6.3.el6 | kernel-doc-2.6.32-754.6.3.el6.noarch.rpm |
RedHat | 6 | s390x | perf | < 2.6.32-754.6.3.el6 | perf-2.6.32-754.6.3.el6.s390x.rpm |
RedHat | 6 | i686 | perf | < 2.6.32-754.6.3.el6 | perf-2.6.32-754.6.3.el6.i686.rpm |
RedHat | 6 | i686 | kernel-debug-debuginfo | < 2.6.32-754.6.3.el6 | kernel-debug-debuginfo-2.6.32-754.6.3.el6.i686.rpm |
RedHat | 6 | ppc64 | kernel | < 2.6.32-754.6.3.el6 | kernel-2.6.32-754.6.3.el6.ppc64.rpm |
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:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
0.016 Low
EPSS
Percentile
87.0%