RHEL 7 : kernel (RHSA-2019:3055)

critical Nessus Plugin ID 129958

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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-2019:3055 advisory.

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

Security Fix(es):

* kernel: Use-after-free in __blk_drain_queue() function in block/blk-core.c (CVE-2018-20856)

* kernel: Heap overflow in mwifiex_update_bss_desc_with_ie function in marvell/mwifiex/scan.c (CVE-2019-3846)

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

* kernel: Heap overflow in mwifiex_uap_parse_tail_ies function in drivers/net/wireless/marvell/mwifiex/ie.c (CVE-2019-10126)

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 Fixes:

* gfs2: Fix iomap write page reclaim deadlock (BZ#1737373)

* [FJ7.6 Bug]: [REG] kernel: ipc: ipc_free should use kvfree (BZ#1740178)

* high update_cfs_rq_blocked_load contention (BZ#1740180)

* [Hyper-V][RHEL 7] kdump fails to start on a Hyper-V guest of Windows Server 2019. (BZ#1740188)

* kvm: backport cpuidle-haltpoll driver (BZ#1740192)

* Growing unreclaimable slab memory (BZ#1741920)

* [bnx2x] ping failed from pf to vf which has been attached to vm (BZ#1741926)

* [Hyper-V]vPCI devices cannot allocate IRQs vectors in a Hyper-V VM with > 240 vCPUs (i.e., when in x2APIC mode) (BZ#1743324)

* Macsec: inbound MACSEC frame is unexpectedly dropped with InPktsNotValid (BZ#1744442)

* RHEL 7.7 Beta - Hit error when trying to run nvme connect with IPv6 address (BZ#1744443)

* RHEL 7.6 SS4 - Paths lost when running straight I/O on NVMe/RoCE system (BZ#1744444)

* NFSv4.0 client sending a double CLOSE (leading to EIO application failure) (BZ#1744946)

* [Azure] CRI-RDOS | [RHEL 7.8] Live migration only takes 10 seconds, but the VM was unavailable for 2 hours (BZ#1748239)

* NFS client autodisconnect timer may fire immediately after TCP connection setup and may cause DoS type reconnect problem in complex network environments (BZ#1749290)

* [Inspur] RHEL7.6 ASPEED graphic card display issue (BZ#1749296)

* Allows macvlan to operated correctly over the active-backup mode to support bonding events. (BZ#1751579)

* [LLNL 7.5 Bug] slab leak causing a crash when using kmem control group (BZ#1752421)

Users of kernel are advised to upgrade to these updated packages, which fix these bugs.

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-2019:3055.

Plugin Details

Severity: Critical

ID: 129958

File Name: redhat-RHSA-2019-3055.nasl

Version: 1.9

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 10/16/2019

Updated: 11/6/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: High

Base Score: 8.3

Temporal Score: 6.5

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

CVSS Score Source: CVE-2019-3846

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

CVSS Score Source: CVE-2019-10126

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: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: 10/15/2019

Vulnerability Publication Date: 6/3/2019

Reference Information

CVE: CVE-2018-20856, CVE-2019-10126, CVE-2019-3846, CVE-2019-9506

CWE: 119, 122, 327

RHSA: 2019:3055

Detections

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