7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
9.3 High
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
0.001 Low
EPSS
Percentile
48.3%
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
A race condition flaw was found in the N_HLDC Linux kernel driver when accessing n_hdlc.tbuf list that can lead to double free. A local, unprivileged user able to set the HDLC line discipline on the tty device could use this flaw to increase their privileges on the system. (CVE-2017-2636, Important)
A flaw was found in the Linux kernel’s implementation of seq_file where a local attacker could manipulate memory in the put() function pointer. This could lead to memory corruption and possible privileged escalation. (CVE-2016-7910, Moderate)
Red Hat would like to thank Alexander Popov for reporting CVE-2017-2636.
Bug Fix(es):
Previously, Chelsio firmware included an incorrectly-formatted firmware bin file. As a consequence, the firmware could not be flashed. This update provides a firmware bin file that is formatted correctly. As a result, Chelsio firmware can now be flashed successfully. (BZ#1433865)
When multiple simultaneous processes attempted to read from the /proc/stat file, spinlock overhead was generated on Non-Uniform Memory Access (NUMA) systems. Consequently, a large amount of CPU was consumed. With this update, the underlying source code has been fixed to avoid taking spinlock when the interrupt line does not exist. As a result, the spinlock overhead is now generated less often, and multiple simultaneous processes can now read /proc/stat without consuming a large amount of CPU. (BZ#1428106)
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
RedHat | 6 | s390x | kernel-debug-debuginfo | < 2.6.32-696.1.1.el6 | kernel-debug-debuginfo-2.6.32-696.1.1.el6.s390x.rpm |
RedHat | 6 | i686 | kernel | < 2.6.32-696.1.1.el6 | kernel-2.6.32-696.1.1.el6.i686.rpm |
RedHat | 6 | x86_64 | kernel-debug | < 2.6.32-696.1.1.el6 | kernel-debug-2.6.32-696.1.1.el6.x86_64.rpm |
RedHat | 6 | noarch | kernel-abi-whitelists | < 2.6.32-696.1.1.el6 | kernel-abi-whitelists-2.6.32-696.1.1.el6.noarch.rpm |
RedHat | 6 | ppc64 | python-perf-debuginfo | < 2.6.32-696.1.1.el6 | python-perf-debuginfo-2.6.32-696.1.1.el6.ppc64.rpm |
RedHat | 6 | x86_64 | kernel-debuginfo | < 2.6.32-696.1.1.el6 | kernel-debuginfo-2.6.32-696.1.1.el6.x86_64.rpm |
RedHat | 6 | s390x | kernel-kdump | < 2.6.32-696.1.1.el6 | kernel-kdump-2.6.32-696.1.1.el6.s390x.rpm |
RedHat | 6 | x86_64 | kernel-devel | < 2.6.32-696.1.1.el6 | kernel-devel-2.6.32-696.1.1.el6.x86_64.rpm |
RedHat | 6 | s390x | kernel-headers | < 2.6.32-696.1.1.el6 | kernel-headers-2.6.32-696.1.1.el6.s390x.rpm |
RedHat | 6 | s390x | kernel-kdump-devel | < 2.6.32-696.1.1.el6 | kernel-kdump-devel-2.6.32-696.1.1.el6.s390x.rpm |
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
9.3 High
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
0.001 Low
EPSS
Percentile
48.3%