Detections
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CentOS 6 : kernel (CESA-2019:2473)
high Nessus Plugin ID 127919
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Synopsis
The remote CentOS host is missing one or more security updates.Description
An update for kernel is now available for Red Hat Enterprise Linux 6.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.
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es) :
* Kernel: page cache side channel attacks (CVE-2019-5489)
* kernel: Salsa20 encryption algorithm does not correctly handle zero-length inputs allowing local attackers to cause denial-of-service (CVE-2017-17805)
* kernel: Unprivileged users able to inspect kernel stacks of arbitrary tasks (CVE-2018-17972)
* kernel: hw: Spectre SWAPGS gadget vulnerability (CVE-2019-1125)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Bug Fix(es) :
* OOPS with NULL pointer exception in v4l2_ctrl_query_menu when second arg of function is NULL (BZ#1647975)
* Another RHEL 6 hang in congestion_wait() (BZ#1658254)
* kernel crash after running user space script (BZ#1663262)
* RHEL-6.10: Don't report the use of retpoline on Skylake as vulnerable (BZ# 1666102)
* Bad pagetable: 000f '*pdpt = 0000000000000000 *pde = 0000000000000000' RHEL 6 32bit (BZ#1702782)
* fs/binfmt_misc.c: do not allow offset overflow [6.10.z] (BZ#1710149)
* Wrong spectre backport causing linux headers to break compilation of 3rd party packages (BZ#1722185)
Solution
Update the affected kernel packages.See Also
Plugin Details
Severity: High
ID: 127919
File Name: centos_RHSA-2019-2473.nasl
Version: 1.5
Type: local
Agent: unix
Family: CentOS Local Security Checks
Published: 8/20/2019
Updated: 2/18/2020
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
CVSS v2
Risk Factor: High
Base Score: 7.2
Temporal Score: 5.6
Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2017-17805
CVSS v3
Risk Factor: High
Base Score: 7.8
Temporal Score: 7
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:centos:centos:kernel-headers, cpe:/o:centos:centos:6, p-cpe:/a:centos:centos:kernel-debug, p-cpe:/a:centos:centos:kernel-abi-whitelists, p-cpe:/a:centos:centos:kernel-firmware, p-cpe:/a:centos:centos:perf, p-cpe:/a:centos:centos:python-perf, p-cpe:/a:centos:centos:kernel, p-cpe:/a:centos:centos:kernel-doc, p-cpe:/a:centos:centos:kernel-debug-devel, p-cpe:/a:centos:centos:kernel-devel
Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 8/16/2019
Vulnerability Publication Date: 12/20/2017
Reference Information
CVE: CVE-2017-17805, CVE-2018-17972, CVE-2019-1125, CVE-2019-5489
RHSA: 2019:2473