CentOS Update for kernel CESA-2018:2390 centos6

Published: 2018-08-15 04:18:58
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:L/AC:L/Au:N/C:C/I:C/A:C

Detection Type:
Linux Distribution Package

Summary:
Check the version of kernel

Detection Method:
Checks if a vulnerable version is present on the target host.

Technical Details:
The kernel Linux Distribution Packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * Modern operating systems implement virtualization of physical memory to efficiently use available system resources and provide inter-domain protection through access control and isolation. The L1TF issue was found in the way the x86 microprocessor designs have implemented speculative execution of instructions (a commonly used performance optimisation) in combination with handling of page-faults caused by terminated virtual to physical address resolving process. As a result, an unprivileged attacker could use this flaw to read privileged memory of the kernel or other processes and/or cross guest/host boundaries to read host memory by conducting targeted cache side-channel attacks. (CVE-2018-3620, CVE-2018-3646) * An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of instructions past bounds check. The flaw relies on the presence of a precisely-defined instruction sequence in the privileged code and the fact that memory writes occur to an address which depends on the untrusted value. Such writes 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 influence speculative execution and/or read privileged memory by conducting targeted cache side-channel attacks. (CVE-2018-3693) * kernel: kvm: vmx: host GDT limit corruption (CVE-2018-10901) * kernel: Use-after-free in snd_pcm_info function in ALSA subsystem potentially leads to privilege escalation (CVE-2017-0861) * kernel: Use-after-free in snd_seq_ioctl_create_port() (CVE-2017-15265) * kernel: race condition in snd_seq_write() may lead to UAF or OOB-access (CVE-2018-7566) * kernel: Race condition in sound system can lead to denial of service (CVE-2018-1000004) 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 Intel OSSIRT (Intel.com) for reporting CVE-2018-3620 and CVE-2018-3646 Vladimir Kiriansky (MIT) and Carl Waldspurger (Carl Waldspurger Consulting) for reporting CVE-2018-3693 and Vegard Nossum (Oracle Corporation) for reporting CVE-2018-10901. Bug Fix(es): * The Least recently used (LRU) operations are batched by caching pages in per-cpu page vectors to prevent contention of the heavily used lru_lock spinlock. The page vectors can hold even the compound pages. Previously, the ... Description truncated, please see the referenced URL(s) for more information.

Affected Versions:
kernel on CentOS 6

Recommendations:
Please install the updated Linux Distribution Packages.

Solution Type:
Vendor Patch

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2017-0861
https://nvd.nist.gov/vuln/detail/CVE-2017-15265
https://nvd.nist.gov/vuln/detail/CVE-2018-3620
https://nvd.nist.gov/vuln/detail/CVE-2018-3646
https://nvd.nist.gov/vuln/detail/CVE-2018-3693
https://nvd.nist.gov/vuln/detail/CVE-2018-7566
https://nvd.nist.gov/vuln/detail/CVE-2018-10901
https://nvd.nist.gov/vuln/detail/CVE-2018-1000004

References:

http://lists.centos.org/pipermail/centos-announce/2018-August/022983.html

Severity
High
CVSS Score
7.2
Published
2018-08-15
Modified
2019-03-08
Category
CentOS Local Security Checks

Free Vulnerability Scanning, Assessment and Management

Mageni's Platform is packed with all the features you need to scan, assess and manage vulnerabilities like this - it is free, open source, lightning fast, reliable and scalable.

Router
Servers
Laptop
Database
Group
Cloud

Frequently Asked Questions

No, you can scan concurrently as many assets as you want. Please note that you must be aware of the hardware requeriments of the platform to ensure a good performance.

No, you can add as many assest as you want. It doesn't matters if you have millions of assets, we won't charge you for that.

No. The software is completely free. We have no intention to charge you to use the software, in fact - it completely goes against our beliefs and business model.

A vulnerability is defined in the ISO 27002 standard as “A weakness of an asset or group of assets that can be exploited by one or more threats” (International Organization for Standardization, 2005)

We generate revenue by providing support and other services for customers that require a subscription so they get guaranteed support and enterprise services. To use Mageni's Platform is completely free, with no limits at all.

Yes. Mageni understands that there are professionals and businesses that need commercial support so Mageni provides an active support subscription with everything needed to run Mageni's Platform reliably and securely. More than software, it's access to security experts, knowledge resources, security updates, and support tools you can't get anywhere else. The subscription includes:

  • Ongoing delivery
    • Patches
    • Bug fixes
    • Updates
    • Upgrades
  • Technical support
    • 24/7 availability
    • Unlimited Incidents
    • Specialty-based routing
    • Multi-Channel
  • Commitments
    • Software certifications
    • Software assurance
    • SLA

No, we don't store the information of your vulnerabilities in our servers.

Vulnerability management is the process in which vulnerabilities in IT are identified and the risks of these vulnerabilities are evaluated. This evaluation leads to correcting the vulnerabilities and removing the risk or a formal risk acceptance by the management of an organization. The term vulnerability management is often confused with vulnerability scanning. Despite the fact both are related, there is an important difference between the two. Vulnerability scanning consists of using a computer program to identify vulnerabilities in networks, computer infrastructure or applications. Vulnerability management is the process surrounding vulnerability scanning, also taking into account other aspects such as risk acceptance, remediation etc. Source: "Implementing a Vulnerability Management Process". SANS Institute.

I am ready to start scanning for vulnerabilities