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Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2020-5804)

high Nessus Plugin ID 139476

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Synopsis

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

Description

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2020-5804 advisory.

 - fs/binfmt_elf.c: allocate initialized memory in fill_thread_core_info() (Alexander Potapenko) [Orabug:
 31350638] {CVE-2020-10732}
 - net-sysfs: call dev_hold if kobject_init_and_add success (YueHaibing) [Orabug: 31445419] {CVE-2019-20811}
 - vfio-pci: protect remap_pfn_range() from simultaneous calls (Ankur Arora) [Orabug: 31663632] {CVE-2020-12888} {CVE-2020-12888}
 - crypto: user - fix memory leak in crypto_report (Navid Emamdoost) [Orabug: 31351639] {CVE-2019-19062}
 - iwlwifi: pcie: fix rb_allocator workqueue allocation (Johannes Berg) [Orabug: 31351807] {CVE-2019-16234}
 - efi: Restrict efivar_ssdt_load when the kernel is locked down (Matthew Garrett) [Orabug: 31643409] {CVE-2019-20908}
 - ext4: fix ext4_empty_dir() for directories with holes (Jan Kara) [Orabug: 31265319] {CVE-2019-19037} {CVE-2019-19037}
 - libertas: fix a potential NULL pointer dereference (Allen Pais) [Orabug: 31351822] {CVE-2019-16232}
 - ext4: work around deleting a file with i_nlink == 0 safely (Theodore Tso) [Orabug: 31351013] {CVE-2019-19447}
 - x86/speculation: Prevent rogue cross-process SSBD shutdown (Anthony Steinhauser) [Orabug: 31557902] {CVE-2020-10768}
 - vfio/pci: Fix SR-IOV VF handling with MMIO blocking (Alex Williamson) [Orabug: 31439670] {CVE-2020-12888}
 - vfio/pci: Mask buggy SR-IOV VF INTx support (Alex Williamson) [Orabug: 31439670] {CVE-2020-12888}
 - vfio-pci: Invalidate mmaps and block MMIO access on disabled memory (Alex Williamson) [Orabug:
 31439670] {CVE-2020-12888} {CVE-2020-12888}
 - vfio/pci: call irq_bypass_unregister_producer() before freeing irq (Jiang Yi) [Orabug: 31439670] {CVE-2020-12888}
 - vfio/pci: Pull BAR mapping setup from read-write path (Alex Williamson) [Orabug: 31439670] {CVE-2020-12888}
 - vfio_pci: Enable memory accesses before calling pci_map_rom (Eric Auger) [Orabug: 31439670] {CVE-2020-12888}
 - vfio-pci: Fault mmaps to enable vma tracking (Alex Williamson) [Orabug: 31439670] {CVE-2020-12888}
 - vfio/type1: Support faulting PFNMAP vmas (Alex Williamson) [Orabug: 31439670] {CVE-2020-12888}
 - vfio/type1: Fix VA->PA translation for PFNMAP VMAs in vaddr_get_pfn() (Sean Christopherson) [Orabug:
 31439670] {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-2020-5804.html

Plugin Details

Severity: High

ID: 139476

File Name: oraclelinux_ELSA-2020-5804.nasl

Version: 1.7

Type: local

Agent: unix

Published: 8/11/2020

Updated: 11/1/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.9

Temporal Score: 5.4

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

CVSS Score Source: CVE-2019-20908

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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

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

CVSS Score Source: CVE-2019-19447

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:kernel-uek-headers, p-cpe:/a:oracle:linux:kernel-uek-debug-devel, p-cpe:/a:oracle:linux:perf, p-cpe:/a:oracle:linux:kernel-uek-devel, cpe:/o:oracle:linux:7, p-cpe:/a:oracle:linux:kernel-uek-tools-libs-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/OracleLinux, Host/RedHat/release, Host/RedHat/rpm-list, Host/local_checks_enabled

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/10/2020

Vulnerability Publication Date: 9/11/2019

Reference Information

CVE: CVE-2019-16232, CVE-2019-16234, CVE-2019-19037, CVE-2019-19049, CVE-2019-19062, CVE-2019-19447, CVE-2019-20811, CVE-2019-20908, CVE-2020-10732, CVE-2020-10768, CVE-2020-12888