Executive Summary

Summary
Title kernel security and bug fix update
Informations
Name RHSA-2016:1096 First vendor Publication 2016-05-23
Vendor RedHat Last vendor Modification 2016-05-23
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:N/AC:L/Au:N/C:N/I:N/A:C)
Cvss Base Score 7.8 Attack Range Network
Cvss Impact Score 6.9 Attack Complexity Low
Cvss Expoit Score 10 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 6.4 Advanced Update Support.

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 Server AUS (v. 6.4) - noarch, x86_64 Red Hat Enterprise Linux Server Optional AUS (v. 6.4) - x86_64

3. Description:

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

Security Fix(es):

* Two flaws were found in the way the Linux kernel's networking implementation handled UDP packets with incorrect checksum values. A remote attacker could potentially use these flaws to trigger an infinite loop in the kernel, resulting in a denial of service on the system, or cause a denial of service in applications using the edge triggered epoll functionality. (CVE-2015-5364, CVE-2015-5366, Important)

Bug Fix(es):

* Prior to this update, if processes that generate interrupts were active during the guest shutdown sequence, the virtio driver in some cases did not correctly clear the interrupts. As a consequence, the guest kernel became unresponsive, which prevented the shutdown from completing. With this update, the virtio driver processes interrupts more effectively, and guests now shut down reliably in the described scenario. (BZ#1323568)

* At a process or thread exit, when the Linux kernel undoes any SysV semaphore operations done previously (the ones done using semop with the SEM_UNDO flag), there was a possible flaw and race with another process or thread removing the same semaphore set where the operations occurred, leading to possible use of in-kernel-freed memory and then to possible unpredictable behavior. This bug could be noticed with software which uses IPC SysV semaphores, such as IBM DB2, which for example in certain cases could lead to some of its processes or utilities to get incorrectly stalled in some IPC semaphore operation or syscall after the race or problem happened. A patch has been provided to fix this bug, and the kernel now behaves as expected in the aforementioned scenario. (BZ#1326341)

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/):

1239029 - CVE-2015-5366 CVE-2015-5364 kernel: net: incorrect processing of checksums in UDP implementation

Original Source

Url : https://rhn.redhat.com/errata/RHSA-2016-1096.html

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-399 Resource Management Errors

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 3
Os 2
Os 2267
Os 1

Nessus® Vulnerability Scanner

Date Description
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
2017-02-22 Name : The remote device is missing a vendor-supplied security patch.
File : f5_bigip_SOL17309.nasl - Type : ACT_GATHER_INFO
2017-02-22 Name : The remote device is missing a vendor-supplied security patch.
File : f5_bigip_SOL17307.nasl - Type : ACT_GATHER_INFO
2016-06-15 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2016-1225.nasl - Type : ACT_GATHER_INFO
2016-05-25 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2016-1100.nasl - Type : ACT_GATHER_INFO
2016-05-24 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2016-1096.nasl - Type : ACT_GATHER_INFO
2016-03-18 Name : The remote OracleVM host is missing one or more security updates.
File : oraclevm_OVMSA-2016-0037.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
2016-01-21 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2016-0045.nasl - Type : ACT_GATHER_INFO
2016-01-20 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2016-0045.nasl - Type : ACT_GATHER_INFO
2016-01-20 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2016-0045.nasl - Type : ACT_GATHER_INFO
2016-01-20 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20160119_kernel_on_SL5_x.nasl - Type : ACT_GATHER_INFO
2015-11-16 Name : The remote OracleVM host is missing one or more security updates.
File : oraclevm_OVMSA-2015-0147.nasl - Type : ACT_GATHER_INFO
2015-11-16 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2015-3098.nasl - Type : ACT_GATHER_INFO
2015-11-03 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2015-1778.nasl - Type : ACT_GATHER_INFO
2015-10-22 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2015-1778.nasl - Type : ACT_GATHER_INFO
2015-10-06 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2015-1678-1.nasl - Type : ACT_GATHER_INFO
2015-09-24 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2015-1611-1.nasl - Type : ACT_GATHER_INFO
2015-09-22 Name : The remote Debian host is missing a security update.
File : debian_DLA-310.nasl - Type : ACT_GATHER_INFO
2015-09-17 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2015-1788.nasl - Type : ACT_GATHER_INFO
2015-09-17 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2015-1787.nasl - Type : ACT_GATHER_INFO
2015-09-16 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20150915_kernel_on_SL7_x.nasl - Type : ACT_GATHER_INFO
2015-09-16 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2015-1778.nasl - Type : ACT_GATHER_INFO
2015-09-03 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2015-1478-1.nasl - Type : ACT_GATHER_INFO
2015-08-18 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-2713-1.nasl - Type : ACT_GATHER_INFO
2015-08-18 Name : The remote OracleVM host is missing one or more security updates.
File : oraclevm_OVMSA-2015-0114.nasl - Type : ACT_GATHER_INFO
2015-08-17 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2015-543.nasl - Type : ACT_GATHER_INFO
2015-08-17 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2015-3071.nasl - Type : ACT_GATHER_INFO
2015-08-17 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2015-3072.nasl - Type : ACT_GATHER_INFO
2015-08-17 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2015-3073.nasl - Type : ACT_GATHER_INFO
2015-08-14 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2015-1623.nasl - Type : ACT_GATHER_INFO
2015-08-14 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20150813_kernel_on_SL6_x.nasl - Type : ACT_GATHER_INFO
2015-08-14 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2015-1623.nasl - Type : ACT_GATHER_INFO
2015-08-14 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2015-1623.nasl - Type : ACT_GATHER_INFO
2015-08-10 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-3329.nasl - Type : ACT_GATHER_INFO
2015-08-03 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2015-1324-1.nasl - Type : ACT_GATHER_INFO
2015-07-24 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-2685-1.nasl - Type : ACT_GATHER_INFO
2015-07-24 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-2684-1.nasl - Type : ACT_GATHER_INFO
2015-07-24 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-2683-1.nasl - Type : ACT_GATHER_INFO
2015-07-24 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-2682-1.nasl - Type : ACT_GATHER_INFO
2015-07-24 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-2681-1.nasl - Type : ACT_GATHER_INFO
2015-07-24 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-2680-1.nasl - Type : ACT_GATHER_INFO
2015-07-24 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-3313.nasl - Type : ACT_GATHER_INFO
2015-07-23 Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2015-565.nasl - Type : ACT_GATHER_INFO

Alert History

If you want to see full details history, please login or register.
0
1
Date Informations
2016-05-25 13:24:40
  • Multiple Updates
2016-05-23 17:24:46
  • First insertion