RHEL 7 : kernel (RHSA-2020:0834)

high Nessus Plugin ID 134671

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Synopsis

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

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:0834 advisory.

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

Security Fix(es):

* kernel: Count overflow in FUSE request leading to use-after-free issues. (CVE-2019-11487)

* kernel: rtl_p2p_noa_ie in drivers/net/wireless/realtek/rtlwifi/ps.c in the Linux kernel lacks a certain upper-bound check, leading to a buffer overflow (CVE-2019-17666)

* Kernel: KVM: export MSR_IA32_TSX_CTRL to guest - incomplete fix for TAA (CVE-2019-11135) (CVE-2019-19338)

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):

* RHEL7.7 - default idle mishandles lazy irq state (BZ#1767620)

* Sanitize MM backported code for RHEL7 (BZ#1768386)

* A bio with a flush and write to an md device can be lost and never complete by the md layer (BZ#1773482)

* [FJ7.7 Bug]: [REG] Read from /proc/net/if_inet6 never stop. (BZ#1778084)

* RHEL7.7 - zfcp: fix reaction on bit error threshold notification (BZ#1778691)

* RHEL7.7 Snapshot3 - Kernel Panic when running LTP mm test on s390x (BZ#1780035)

* Leak in cachefiles driver (BZ#1780149)

* VFS: Busy inodes after unmount of loop0 when encountering duplicate directory inodes (BZ#1781159)

* Allocation failure in md's r10buf_pool_alloc function leads to a crash from accessing uninitialized pointers (BZ#1781584)

* [Hyper-V][RHEL7.6]Hyper-V guest waiting indefinitely for RCU callback when removing a mem cgroup (BZ#1783177)

* A bnx2fc abort attempt doesn't timeout from miscalculation causing a huge timeout value (BZ#1784824)

* scsi: libiscsi: fall back to sendmsg for slab pages (BZ#1784826)

* RHEL7.7 - kernel: avoid cpu yield in SMT environment (BZ#1787558)

* RHEL7.6 - kernel: jump label transformation performance (BZ#1787559)

* drm radeon power management warning on VERDE cards (BZ#1789744)

* Duplicate enum value in include/linux/blk_types.h (BZ#1791781)

* [HPE 7.7 Bug] hpsa: bug fix for reset issue (BZ#1791782)

* System Crash on vport creation (NPIV on FCoE) (BZ#1791825)

* [Hyper-V][RHEL 7.8] Four Mellanox Patches needed for kernels that have that have SRIOV (BZ#1792371)

* WARNING: CPU: 7 PID: 2049 at mm/slub.c:2296 ___slab_alloc+0x508/0x520 (BZ#1793086)

* fio with ioengine=pmemblk on fsdax failed (BZ#1793088)

* [HPE 7.7 Bug] hpsa: bug fixes (BZ#1793579)

* perf top -p PID does not show anything (BZ#1793581)

* Delay in RT task scheduled. Incorrect nr_scheduled value. (BZ#1796261)

* A directory on a gfs2 filesystem appears corrupt on nodeB after nodeA renames the directory (BZ#1796431)

* ixgbevf interface goes down on hypervisor and causes outage (BZ#1796798)

* Can't enable virt-ssbd on some AMD hosts (BZ#1797511)

* [HPEMC 7.8 BUG] x86/boot/64: Avoid mapping reserved ranges in early page tables (BZ#1798163)

Enhancement(s):

* scsi: qla2xxx: Fix panic in qla_dfs_tgt_counters_show' (BZ#1791595)

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 affected packages.

Plugin Details

Severity: High

ID: 134671

File Name: redhat-RHSA-2020-0834.nasl

Version: 1.12

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 3/18/2020

Updated: 11/7/2024

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-2019-17666

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

Vector: CVSS:3.0/AV:A/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

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: 3/17/2020

Vulnerability Publication Date: 4/23/2019

Reference Information

CVE: CVE-2019-11487, CVE-2019-17666, CVE-2019-19338

BID: 108054

CWE: 120, 203, 416

RHSA: 2020:0834

Detections

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