RHEL 7 : kernel (RHSA-2019:3220)

high Nessus Plugin ID 130376

Synopsis

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

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2019:3220 advisory.

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

Security Fix(es):

* Kernel: vhost_net: infinite loop while receiving packets leads to DoS (CVE-2019-3900)

* hardware: bluetooth: BR/EDR encryption key negotiation attacks (KNOB) (CVE-2019-9506)

* 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):

* [mlx4] VXLAN over VLAN TCP segmentation (BZ#1734325)

* Race condition in /dev/sg due to missing synchronization causes corruption in RHV (BZ#1737378)

* [FJ7.6 Bug]: [REG] kernel: ipc: ipc_free should use kvfree (BZ#1740177)

* high update_cfs_rq_blocked_load contention (BZ#1740179)

* kvm: backport cpuidle-haltpoll driver (BZ#1740191)

* Growing unreclaimable slab memory (BZ#1741919)

* [Hyper-V]vPCI devices cannot allocate IRQs vectors in a Hyper-V VM with > 240 vCPUs (i.e., when in x2APIC mode) (BZ#1743323)

* NFSv4.0 client sending a double CLOSE (leading to EIO application failure) (BZ#1744945)

* powerpc/pseries: Fix unitialized timer reset on migration / powerpc/pseries/mobility: Extend start/stop topology update scope (LPM) (BZ#1745441)

* ISST-LTE:PVM:Zeppelin :LPM: Failure logs and stack trace seen during LPM (POWER9/P9) (BZ#1745448)

* [LLNL 7.5 Bug] slab leak causing a crash when using kmem control group (BZ#1748237)

* [Azure] CRI-RDOS | [RHEL 7.8] Live migration only takes 10 seconds, but the VM was unavailable for 2 hours (BZ#1748238)

* Allows macvlan to operate correctly over the active-backup mode to support bonding events (BZ#1749291)

* debug kernel reports scheduling while atomic bug in EFI code (BZ#1755324)

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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 package based on the guidance in RHSA-2019:3220.

See Also

http://www.nessus.org/u?867d12bb

https://access.redhat.com/articles/4329821

https://access.redhat.com/errata/RHSA-2019:3220

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

https://bugzilla.redhat.com/show_bug.cgi?id=1698757

https://bugzilla.redhat.com/show_bug.cgi?id=1724389

https://bugzilla.redhat.com/show_bug.cgi?id=1727857

Plugin Details

Severity: High

ID: 130376

File Name: redhat-RHSA-2019-3220.nasl

Version: 1.6

Type: local

Agent: unix

Published: 10/30/2019

Updated: 11/7/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Medium

Base Score: 4.8

Temporal Score: 3.8

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

CVSS Score Source: CVE-2019-9506

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.3

Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:bpftool, p-cpe:/a:redhat:enterprise_linux:kernel-tools, p-cpe:/a:redhat:enterprise_linux:kernel-headers, cpe:/o:redhat:rhel_eus:7.6, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:kernel-devel, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs-devel, p-cpe:/a:redhat:enterprise_linux:kernel-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-kdump, p-cpe:/a:redhat:enterprise_linux:kernel-bootwrapper, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs, p-cpe:/a:redhat:enterprise_linux:python-perf, p-cpe:/a:redhat:enterprise_linux:kernel-kdump-devel, p-cpe:/a:redhat:enterprise_linux:kernel, p-cpe:/a:redhat:enterprise_linux:kernel-debug, p-cpe:/a:redhat:enterprise_linux:perf

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: 10/29/2019

Vulnerability Publication Date: 4/25/2019

Reference Information

CVE: CVE-2019-1125, CVE-2019-3900, CVE-2019-9506

CWE: 200, 327, 835

RHSA: 2019:3220