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Test ID:1.3.6.1.4.1.25623.1.0.882768
Category:CentOS Local Security Checks
Title:CentOS Update for kernel CESA-2017:2679 centos7
Summary:Check the version of kernel
Description:Summary:
Check the version of kernel

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

Security Fix(es):

* A stack buffer overflow flaw was found in the way the Bluetooth subsystem
of the Linux kernel processed pending L2CAP configuration responses from a
client. On systems with the stack protection feature enabled in the kernel
(CONFIG_CC_STACKPROTECTOR=y, which is enabled on all architectures other
than s390x and ppc64[le]), an unauthenticated attacker able to initiate a
connection to a system via Bluetooth could use this flaw to crash the
system. Due to the nature of the stack protection feature, code execution
cannot be fully ruled out, although we believe it is unlikely. On systems
without the stack protection feature (ppc64[le] the Bluetooth modules are
not built on s390x), an unauthenticated attacker able to initiate a
connection to a system via Bluetooth could use this flaw to remotely
execute arbitrary code on the system with ring 0 (kernel) privileges.
(CVE-2017-1000251, Important)

Red Hat would like to thank Armis Labs for reporting this issue.

Affected Software/OS:
kernel on CentOS 7

Solution:
Please Install the Updated Packages.

CVSS Score:
7.7

CVSS Vector:
AV:A/AC:L/Au:S/C:C/I:C/A:C

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2017-1000251
BugTraq ID: 100809
http://www.securityfocus.com/bid/100809
CERT/CC vulnerability note: VU#240311
https://www.kb.cert.org/vuls/id/240311
Debian Security Information: DSA-3981 (Google Search)
http://www.debian.org/security/2017/dsa-3981
https://www.exploit-db.com/exploits/42762/
https://github.com/torvalds/linux/commit/f2fcfcd670257236ebf2088bbdf26f6a8ef459fe
https://www.armis.com/blueborne
RedHat Security Advisories: RHSA-2017:2679
https://access.redhat.com/errata/RHSA-2017:2679
RedHat Security Advisories: RHSA-2017:2680
https://access.redhat.com/errata/RHSA-2017:2680
RedHat Security Advisories: RHSA-2017:2681
https://access.redhat.com/errata/RHSA-2017:2681
RedHat Security Advisories: RHSA-2017:2682
https://access.redhat.com/errata/RHSA-2017:2682
RedHat Security Advisories: RHSA-2017:2683
https://access.redhat.com/errata/RHSA-2017:2683
RedHat Security Advisories: RHSA-2017:2704
https://access.redhat.com/errata/RHSA-2017:2704
RedHat Security Advisories: RHSA-2017:2705
https://access.redhat.com/errata/RHSA-2017:2705
RedHat Security Advisories: RHSA-2017:2706
https://access.redhat.com/errata/RHSA-2017:2706
RedHat Security Advisories: RHSA-2017:2707
https://access.redhat.com/errata/RHSA-2017:2707
RedHat Security Advisories: RHSA-2017:2731
https://access.redhat.com/errata/RHSA-2017:2731
RedHat Security Advisories: RHSA-2017:2732
https://access.redhat.com/errata/RHSA-2017:2732
http://www.securitytracker.com/id/1039373
CopyrightCopyright (C) 2017 Greenbone AG

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