5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
4.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
0.002 Low
EPSS
Percentile
60.5%
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of Load & Store instructions (a commonly used performance optimization). It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the fact that memory read from address to which a recent memory write has occurred may see an older value and subsequently cause an update into the microprocessor’s data cache even for speculatively executed instructions that never actually commit (retire). As a result, an unprivileged attacker could use this flaw to read privileged memory by conducting targeted cache side-channel attacks. (CVE-2018-3639)
kernel: A divide-by-zero vulnerability was found in the __tcp_select_window function in the Linux kernel. This can result in a kernel panic causing a local denial of service. (CVE-2017-14106)
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 Ken Johnson (Microsoft Security Response Center) and Jann Horn (Google Project Zero) for reporting CVE-2018-3639.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
RedHat | 5 | i686 | kernel-debuginfo-common | < 2.6.18-433.el5 | kernel-debuginfo-common-2.6.18-433.el5.i686.rpm |
RedHat | 5 | s390x | kernel-debuginfo-common | < 2.6.18-433.el5 | kernel-debuginfo-common-2.6.18-433.el5.s390x.rpm |
RedHat | 5 | s390x | kernel-kdump-devel | < 2.6.18-433.el5 | kernel-kdump-devel-2.6.18-433.el5.s390x.rpm |
RedHat | 5 | s390x | kernel-kdump-debuginfo | < 2.6.18-433.el5 | kernel-kdump-debuginfo-2.6.18-433.el5.s390x.rpm |
RedHat | 5 | x86_64 | kernel-debuginfo-common | < 2.6.18-433.el5 | kernel-debuginfo-common-2.6.18-433.el5.x86_64.rpm |
RedHat | 5 | noarch | kernel-doc | < 2.6.18-433.el5 | kernel-doc-2.6.18-433.el5.noarch.rpm |
RedHat | 5 | x86_64 | kernel-debug | < 2.6.18-433.el5 | kernel-debug-2.6.18-433.el5.x86_64.rpm |
RedHat | 5 | x86_64 | kernel-devel | < 2.6.18-433.el5 | kernel-devel-2.6.18-433.el5.x86_64.rpm |
RedHat | 5 | i686 | kernel-debug-devel | < 2.6.18-433.el5 | kernel-debug-devel-2.6.18-433.el5.i686.rpm |
RedHat | 5 | x86_64 | kernel-debug-devel | < 2.6.18-433.el5 | kernel-debug-devel-2.6.18-433.el5.x86_64.rpm |
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
4.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
0.002 Low
EPSS
Percentile
60.5%