RHEL 7 : kernel (RHSA-2019:3220)

high Nessus Plugin ID 130376
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

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

Description

An update for kernel is now available for Red Hat Enterprise Linux 7.6 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

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 uninitialized 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)

Solution

Update the affected packages.

See Also

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

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

https://access.redhat.com/security/cve/cve-2019-1125

https://access.redhat.com/security/cve/cve-2019-3900

https://access.redhat.com/security/cve/cve-2019-9506

Plugin Details

Severity: High

ID: 130376

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

Version: 1.3

Type: local

Agent: unix

Published: 10/30/2019

Updated: 2/18/2020

Dependencies: ssh_get_info.nasl, linux_alt_patch_detect.nasl

Risk Information

CVSS Score Source: CVE-2019-9506

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 4.8

Temporal Score: 3.8

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

Temporal Vector: E:POC/RL:OF/RC:C

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: E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:bpftool, p-cpe:/a:redhat:enterprise_linux:kernel, p-cpe:/a:redhat:enterprise_linux:kernel-abi-whitelists, p-cpe:/a:redhat:enterprise_linux:kernel-debug, p-cpe:/a:redhat:enterprise_linux:kernel-debug-debuginfo, p-cpe:/a:redhat:enterprise_linux:kernel-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-debuginfo, p-cpe:/a:redhat:enterprise_linux:kernel-debuginfo-common-s390x, p-cpe:/a:redhat:enterprise_linux:kernel-debuginfo-common-x86_64, p-cpe:/a:redhat:enterprise_linux:kernel-devel, p-cpe:/a:redhat:enterprise_linux:kernel-doc, p-cpe:/a:redhat:enterprise_linux:kernel-headers, p-cpe:/a:redhat:enterprise_linux:kernel-kdump, p-cpe:/a:redhat:enterprise_linux:kernel-kdump-debuginfo, p-cpe:/a:redhat:enterprise_linux:kernel-kdump-devel, p-cpe:/a:redhat:enterprise_linux:kernel-tools, p-cpe:/a:redhat:enterprise_linux:kernel-tools-debuginfo, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs-devel, p-cpe:/a:redhat:enterprise_linux:perf, p-cpe:/a:redhat:enterprise_linux:perf-debuginfo, p-cpe:/a:redhat:enterprise_linux:python-perf, p-cpe:/a:redhat:enterprise_linux:python-perf-debuginfo, cpe:/o:redhat:enterprise_linux:7.6

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

RHSA: 2019:3220