Executive Summary

Summary
Title kernel security and bug fix update
Informations
Name RHSA-2016:1277 First vendor Publication 2016-06-23
Vendor RedHat Last vendor Modification 2016-06-23
Severity (Vendor) N/A Revision 01

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:C/I:C/A:C)
Cvss Base Score 7.2 Attack Range Local
Cvss Impact Score 10 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Problem Description:

An update for kernel is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Client (v. 7) - noarch, x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

3. Description:

The kernel packages contain the Linux kernel, the core of any Linux operating system.

These updated kernel packages include several security issues and numerous bug fixes, some of which you can see below. Space precludes documenting all of these bug fixes in this advisory. To see the complete list of bug fixes, users are directed to the related Knowledge Article: https://access.redhat.com/articles/2361921.

Security Fixes:

* A flaw was found in the way certain interfaces of the Linux kernel's Infiniband subsystem used write() as bi-directional ioctl() replacement, which could lead to insufficient memory security checks when being invoked using the splice() system call. A local unprivileged user on a system with either Infiniband hardware present or RDMA Userspace Connection Manager Access module explicitly loaded, could use this flaw to escalate their privileges on the system. (CVE-2016-4565, Important)

* A race condition flaw was found in the way the Linux kernel's SCTP implementation handled sctp_accept() during the processing of heartbeat timeout events. A remote attacker could use this flaw to prevent further connections to be accepted by the SCTP server running on the system, resulting in a denial of service. (CVE-2015-8767, Moderate)

Red Hat would like to thank Jann Horn for reporting CVE-2016-4565.

Bug Fixes:

* When Small Computer System Interface (SCSI) devices were removed or deleted, a system crash could occur due to a race condition between listing all SCSI devices and SCSI device removal. The provided patch ensures that the starting node for the klist_iter_init_node() function is actually a member of the list before using it. As a result, a system crash no longer occurs in the described scenario. (BZ#1333403)

* This update offers a reworked series of patches for the resizable hash table (rhashtable) including a number of backported bug fixes and enhancements from upstream. (BZ#1328801)

* Previously, the same value of the mperf Model-Specific Register (MSR) read twice in a row could lead to a kernel panic due to the divide-by-zero error. The provided patch fixes this bug, and the kernel now handles two identical values of mperf gracefully. (BZ#1334438)

* When a transparent proxy application was running and the number of established connections on the computer exceeded one million, unrelated processes, such as curl or ssh, were unable to bind to a local IP on the box to initiate a connection. The provided patch fixes the cooperation of the REUSEADDR/NOREUSEADDR socket option, and thus prevents the local port from being exhausted. As a result, the aforementioned bug no longer occurs in the described scenario. (BZ#1323960)

* Previously, the kernel support for non-local bind for the IPv6 protocol was incomplete. As a consequence, an attempt to bind a socket to an IPv6 address that is not assigned to the host could fail. The provided patch includes changes in the ip_nonlocal_bind variable, which is now set to allow binding to an IPv6 address that is not assigned to the host. As a result, Linux servers are now able to bind to non-local IPv6 addresses as expected. (BZ#1324502)

* On some servers with a faster CPU, USB initialization could previously lead to a kernel hang during boot. If this inconvenience occurred when booting the second kernel during the kdump operation, the kdump service failed and the vmcore was lost. The provided upstream patch fixes this bug, and the kernel no longer hangs after USB initialization. (BZ#1327581)

* Previously, when running iperf servers using the mlx4_en module, a kernel panic occurred. The underlying source code has been fixed, and the kernel panic no longer occurs in the described scenario. (BZ#1327583)

4. Solution:

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

The system must be rebooted for this update to take effect.

5. Bugs fixed (https://bugzilla.redhat.com/):

1297389 - CVE-2015-8767 kernel: SCTP denial of service during timeout 1310570 - CVE-2016-4565 kernel: infiniband: Unprivileged process can overwrite kernel memory using rdma_ucm.ko

Original Source

Url : https://rhn.redhat.com/errata/RHSA-2016-1277.html

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-362 Race Condition
50 % CWE-264 Permissions, Privileges, and Access Controls

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 6
Os 2
Os 2577

Nessus® Vulnerability Scanner

Date Description
2017-05-01 Name : The remote EulerOS host is missing multiple security updates.
File : EulerOS_SA-2016-1043.nasl - Type : ACT_GATHER_INFO
2017-05-01 Name : The remote EulerOS host is missing multiple security updates.
File : EulerOS_SA-2016-1020.nasl - Type : ACT_GATHER_INFO
2017-04-03 Name : The remote OracleVM host is missing one or more security updates.
File : oraclevm_OVMSA-2017-0057.nasl - Type : ACT_GATHER_INFO
2017-01-31 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2017-0333-1.nasl - Type : ACT_GATHER_INFO
2016-09-23 Name : The remote OracleVM host is missing one or more security updates.
File : oraclevm_OVMSA-2016-0100.nasl - Type : ACT_GATHER_INFO
2016-09-20 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-3083-2.nasl - Type : ACT_GATHER_INFO
2016-09-20 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-3083-1.nasl - Type : ACT_GATHER_INFO
2016-09-08 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-2245-1.nasl - Type : ACT_GATHER_INFO
2016-09-08 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2016-1814.nasl - Type : ACT_GATHER_INFO
2016-09-02 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-2074-1.nasl - Type : ACT_GATHER_INFO
2016-09-02 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-1995-1.nasl - Type : ACT_GATHER_INFO
2016-09-02 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-2001-1.nasl - Type : ACT_GATHER_INFO
2016-09-02 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-2002-1.nasl - Type : ACT_GATHER_INFO
2016-09-02 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-2005-1.nasl - Type : ACT_GATHER_INFO
2016-09-02 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-2006-1.nasl - Type : ACT_GATHER_INFO
2016-09-02 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-2010-1.nasl - Type : ACT_GATHER_INFO
2016-09-02 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-2014-1.nasl - Type : ACT_GATHER_INFO
2016-09-02 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-2105-1.nasl - Type : ACT_GATHER_INFO
2016-08-30 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2016-1029.nasl - Type : ACT_GATHER_INFO
2016-08-29 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-1690-1.nasl - Type : ACT_GATHER_INFO
2016-08-29 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-1672-1.nasl - Type : ACT_GATHER_INFO
2016-08-29 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2016-3596.nasl - Type : ACT_GATHER_INFO
2016-08-25 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2016-1015.nasl - Type : ACT_GATHER_INFO
2016-08-24 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2016-1657.nasl - Type : ACT_GATHER_INFO
2016-08-22 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2016-1640.nasl - Type : ACT_GATHER_INFO
2016-08-17 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2016-1617.nasl - Type : ACT_GATHER_INFO
2016-08-10 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2016-1581.nasl - Type : ACT_GATHER_INFO
2016-07-27 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2016-1489.nasl - Type : ACT_GATHER_INFO
2016-07-19 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20160712_kernel_on_SL6_x.nasl - Type : ACT_GATHER_INFO
2016-07-13 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2016-1406.nasl - Type : ACT_GATHER_INFO
2016-07-13 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2016-1406.nasl - Type : ACT_GATHER_INFO
2016-07-13 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2016-1406.nasl - Type : ACT_GATHER_INFO
2016-06-29 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-3607.nasl - Type : ACT_GATHER_INFO
2016-06-28 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-3021-1.nasl - Type : ACT_GATHER_INFO
2016-06-28 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2016-1341.nasl - Type : ACT_GATHER_INFO
2016-06-28 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-3018-1.nasl - Type : ACT_GATHER_INFO
2016-06-28 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-3018-2.nasl - Type : ACT_GATHER_INFO
2016-06-28 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-3019-1.nasl - Type : ACT_GATHER_INFO
2016-06-27 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20160623_kernel_on_SL7_x.nasl - Type : ACT_GATHER_INFO
2016-06-27 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2016-3579.nasl - Type : ACT_GATHER_INFO
2016-06-24 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2016-1301.nasl - Type : ACT_GATHER_INFO
2016-06-24 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2016-1277.nasl - Type : ACT_GATHER_INFO
2016-06-24 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2016-1277.nasl - Type : ACT_GATHER_INFO
2016-06-24 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2016-1277.nasl - Type : ACT_GATHER_INFO
2016-06-23 Name : The remote OracleVM host is missing one or more security updates.
File : oraclevm_OVMSA-2016-0083.nasl - Type : ACT_GATHER_INFO
2016-06-23 Name : The remote OracleVM host is missing one or more security updates.
File : oraclevm_OVMSA-2016-0084.nasl - Type : ACT_GATHER_INFO
2016-06-22 Name : The remote OracleVM host is missing one or more security updates.
File : oraclevm_OVMSA-2016-0060.nasl - Type : ACT_GATHER_INFO
2016-06-22 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2016-753.nasl - Type : ACT_GATHER_INFO
2016-06-20 Name : The remote Debian host is missing a security update.
File : debian_DLA-516.nasl - Type : ACT_GATHER_INFO
2016-06-14 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2016-3573.nasl - Type : ACT_GATHER_INFO
2016-06-14 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2016-3572.nasl - Type : ACT_GATHER_INFO
2016-06-14 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2016-3570.nasl - Type : ACT_GATHER_INFO
2016-06-10 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-3003-1.nasl - Type : ACT_GATHER_INFO
2016-06-10 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-3001-1.nasl - Type : ACT_GATHER_INFO
2016-06-10 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-3002-1.nasl - Type : ACT_GATHER_INFO
2016-06-10 Name : The remote Ubuntu host is missing a security-related patch.
File : ubuntu_USN-3004-1.nasl - Type : ACT_GATHER_INFO
2016-06-10 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-3005-1.nasl - Type : ACT_GATHER_INFO
2016-06-10 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-3006-1.nasl - Type : ACT_GATHER_INFO
2016-06-10 Name : The remote Ubuntu host is missing a security-related patch.
File : ubuntu_USN-3007-1.nasl - Type : ACT_GATHER_INFO
2016-05-20 Name : The remote OracleVM host is missing one or more security updates.
File : oraclevm_OVMSA-2016-0052.nasl - Type : ACT_GATHER_INFO
2016-05-19 Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2016-703.nasl - Type : ACT_GATHER_INFO
2016-05-18 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2016-3559.nasl - Type : ACT_GATHER_INFO
2016-05-12 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-2967-1.nasl - Type : ACT_GATHER_INFO
2016-05-09 Name : The remote OracleVM host is missing one or more security updates.
File : oraclevm_OVMSA-2016-0047.nasl - Type : ACT_GATHER_INFO
2016-05-09 Name : The remote OracleVM host is missing one or more security updates.
File : oraclevm_OVMSA-2016-0046.nasl - Type : ACT_GATHER_INFO
2016-05-09 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2016-3554.nasl - Type : ACT_GATHER_INFO
2016-05-06 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2016-3553.nasl - Type : ACT_GATHER_INFO
2016-05-06 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2016-3551.nasl - Type : ACT_GATHER_INFO
2016-05-06 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2016-3552.nasl - Type : ACT_GATHER_INFO
2016-05-06 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20160504_kernel_on_SL6_x.nasl - Type : ACT_GATHER_INFO
2016-05-04 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-1203-1.nasl - Type : ACT_GATHER_INFO
2016-05-04 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2016-0715.nasl - Type : ACT_GATHER_INFO
2016-05-04 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2016-0715.nasl - Type : ACT_GATHER_INFO
2016-05-04 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2016-0715.nasl - Type : ACT_GATHER_INFO
2016-04-13 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2016-445.nasl - Type : ACT_GATHER_INFO
2016-04-01 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-0911-1.nasl - Type : ACT_GATHER_INFO
2016-03-17 Name : The remote Ubuntu host is missing a security-related patch.
File : ubuntu_USN-2930-3.nasl - Type : ACT_GATHER_INFO
2016-03-17 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-0785-1.nasl - Type : ACT_GATHER_INFO
2016-03-15 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-2931-1.nasl - Type : ACT_GATHER_INFO
2016-03-15 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-2930-1.nasl - Type : ACT_GATHER_INFO
2016-03-15 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-2930-2.nasl - Type : ACT_GATHER_INFO
2016-03-15 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-2932-1.nasl - Type : ACT_GATHER_INFO
2016-03-04 Name : The remote Fedora host is missing a security update.
File : fedora_2016-5d43766e33.nasl - Type : ACT_GATHER_INFO
2016-03-04 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-3503.nasl - Type : ACT_GATHER_INFO
2016-02-29 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-0585-1.nasl - Type : ACT_GATHER_INFO
2016-02-10 Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2016-648.nasl - Type : ACT_GATHER_INFO
2016-02-08 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2016-136.nasl - Type : ACT_GATHER_INFO
2016-02-08 Name : The remote Debian host is missing a security update.
File : debian_DLA-412.nasl - Type : ACT_GATHER_INFO
2016-02-03 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2016-124.nasl - Type : ACT_GATHER_INFO
2016-02-03 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2016-116.nasl - Type : ACT_GATHER_INFO
2016-01-20 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-3448.nasl - Type : ACT_GATHER_INFO

Alert History

If you want to see full details history, please login or register.
0
1
Date Informations
2016-06-25 13:27:14
  • Multiple Updates
2016-06-24 00:23:56
  • First insertion