RHEL 7 : kernel-rt (RHSA-2017:2931)

high Nessus Plugin ID 104004

Synopsis

The remote Red Hat host is missing one or more security updates for kernel-rt.

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2017:2931 advisory.

- kernel: net: Out of bounds stack read in memcpy_fromiovec (CVE-2016-8399)

- kernel: Out-of-bounds heap access in xfrm (CVE-2017-7184)

- kernel: Possible heap buffer overflow in brcmf_cfg80211_mgmt_tx() (CVE-2017-7541)

- kernel: Integer overflow in ip6_find_1stfragopt() causes infinite loop (CVE-2017-7542)

- kernel: Out of bounds read in inet_diag_msg_sctp{,l}addr_fill() and sctp_get_sctp_info() in SCTP stack (CVE-2017-7558)

- kernel: Use-after-free in sys_mq_notify() (CVE-2017-11176)

- kernel: Divide-by-zero in __tcp_select_window (CVE-2017-14106)

- kernel: Heap out-of-bounds read in AF_PACKET sockets (CVE-2017-1000111)

- kernel: Exploitable memory corruption due to UFO to non-UFO path switch (CVE-2017-1000112)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL kernel-rt package based on the guidance in RHSA-2017:2931.

See Also

http://www.nessus.org/u?d52cdb4f

https://access.redhat.com/errata/RHSA-2017:2931

https://access.redhat.com/security/updates/classification/#important

https://bugzilla.redhat.com/show_bug.cgi?id=1403833

https://bugzilla.redhat.com/show_bug.cgi?id=1435153

https://bugzilla.redhat.com/show_bug.cgi?id=1470659

https://bugzilla.redhat.com/show_bug.cgi?id=1473198

https://bugzilla.redhat.com/show_bug.cgi?id=1473649

https://bugzilla.redhat.com/show_bug.cgi?id=1479304

https://bugzilla.redhat.com/show_bug.cgi?id=1479307

https://bugzilla.redhat.com/show_bug.cgi?id=1480266

https://bugzilla.redhat.com/show_bug.cgi?id=1487295

https://bugzilla.redhat.com/show_bug.cgi?id=1489084

Plugin Details

Severity: High

ID: 104004

File Name: redhat-RHSA-2017-2931.nasl

Version: 3.14

Type: local

Agent: unix

Published: 10/20/2017

Updated: 4/27/2024

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.6

CVSS v2

Risk Factor: High

Base Score: 7.6

Temporal Score: 6.6

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2016-8399

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.5

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:H/RL:O/RC:C

CVSS Score Source: CVE-2017-7541

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:kernel-rt, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-kvm, p-cpe:/a:redhat:enterprise_linux:kernel-rt-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-doc, p-cpe:/a:redhat:enterprise_linux:kernel-rt-kvm, p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace, p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace-kvm, cpe:/o:redhat:enterprise_linux:7

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/19/2017

Vulnerability Publication Date: 1/12/2017

Exploitable With

Core Impact

Metasploit (Linux Kernel UDP Fragmentation Offset (UFO) Privilege Escalation)

Reference Information

CVE: CVE-2016-8399, CVE-2017-1000111, CVE-2017-1000112, CVE-2017-11176, CVE-2017-14106, CVE-2017-7184, CVE-2017-7541, CVE-2017-7542, CVE-2017-7558

CWE: 120, 122, 125, 20, 362, 369, 416, 835

RHSA: 2017:2931