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Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2020-5805)

medium Nessus Plugin ID 139531

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Synopsis

The remote Oracle Linux host is missing one or more security updates.

Description

The remote Oracle Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2020-5805 advisory.

 - x86/speculation: Avoid force-disabling IBPB based on STIBP and enhanced IBRS. (Anthony Steinhauser) [Orabug: 31557802] {CVE-2020-10767}
 - fs/binfmt_elf.c: allocate initialized memory in fill_thread_core_info() (Alexander Potapenko) [Orabug:
 31350635] {CVE-2020-10732}
 - vfio-pci: protect remap_pfn_range() from simultaneous calls (Ankur Arora) [Orabug: 31663628] {CVE-2020-12888} {CVE-2020-12888}
 - kernel/relay.c: handle alloc_percpu returning NULL in relay_open (Daniel Axtens) [Orabug: 31183397] {CVE-2019-19462}
 - x86/speculation: Prevent rogue cross-process SSBD shutdown (Anthony Steinhauser) [Orabug: 31557900] {CVE-2020-10768}
 - vfio/pci: Fix SR-IOV VF handling with MMIO blocking (Alex Williamson) [Orabug: 31439668] {CVE-2020-12888}
 - vfio-pci: Invalidate mmaps and block MMIO access on disabled memory (Alex Williamson) [Orabug:
 31439668] {CVE-2020-12888} {CVE-2020-12888}
 - vfio-pci: Fault mmaps to enable vma tracking (Alex Williamson) [Orabug: 31439668] {CVE-2020-12888}
 - vfio/type1: Support faulting PFNMAP vmas (Alex Williamson) [Orabug: 31439668] {CVE-2020-12888}
 - vfio/type1: Fix VA->PA translation for PFNMAP VMAs in vaddr_get_pfn() (Sean Christopherson) [Orabug:
 31439668] {CVE-2020-12888}

Tenable has extracted the preceding description block directly from the Oracle 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.

See Also

https://linux.oracle.com/errata/ELSA-2020-5805.html

Plugin Details

Severity: Medium

ID: 139531

File Name: oraclelinux_ELSA-2020-5805.nasl

Version: 1.6

Type: local

Agent: unix

Published: 8/12/2020

Updated: 10/22/2024

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Low

Base Score: 3.6

Temporal Score: 2.7

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

CVSS Score Source: CVE-2020-10732

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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

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

CVSS Score Source: CVE-2020-10768

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:kernel-uek-debug-devel, p-cpe:/a:oracle:linux:perf, cpe:/o:oracle:linux:7, cpe:/o:oracle:linux:8, p-cpe:/a:oracle:linux:kernel-uek-devel, p-cpe:/a:oracle:linux:kernel-uek-doc, p-cpe:/a:oracle:linux:python-perf, p-cpe:/a:oracle:linux:kernel-uek-tools, p-cpe:/a:oracle:linux:kernel-uek-tools-libs, p-cpe:/a:oracle:linux:kernel-uek, p-cpe:/a:oracle:linux:kernel-uek-debug

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/10/2020

Vulnerability Publication Date: 11/18/2019

Reference Information

CVE: CVE-2019-19054, CVE-2019-19462, CVE-2020-10732, CVE-2020-10767, CVE-2020-10768, CVE-2020-12888