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Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2019-4837)

medium Nessus Plugin ID 130995

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Synopsis

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

Description

The remote Oracle Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2019-4837 advisory.

 - x86/tsx: Add config options to set tsx=on|off|auto (Michal Hocko) [Orabug: 30419233] {CVE-2019-11135}
 - x86/speculation/taa: Add documentation for TSX Async Abort (Pawan Gupta) [Orabug: 30419233] {CVE-2019-11135}
 - x86/tsx: Add 'auto' option to the tsx= cmdline parameter (Pawan Gupta) [Orabug: 30419233] {CVE-2019-11135}
 - kvm/x86: Export MDS_NO=0 to guests when TSX is enabled (Pawan Gupta) [Orabug: 30419233] {CVE-2019-11135}
 - x86/speculation/taa: Add sysfs reporting for TSX Async Abort (Pawan Gupta) [Orabug: 30419233] {CVE-2019-11135}
 - x86/speculation/taa: Add mitigation for TSX Async Abort (Kanth Ghatraju) [Orabug: 30419233] {CVE-2019-11135}
 - x86/cpu: Add a 'tsx=' cmdline option with TSX disabled by default (Pawan Gupta) [Orabug: 30419233] {CVE-2019-11135}
 - x86/cpu: Add a helper function x86_read_arch_cap_msr() (Pawan Gupta) [Orabug: 30419233] {CVE-2019-11135}
 - x86/msr: Add the IA32_TSX_CTRL MSR (Pawan Gupta) [Orabug: 30419233] {CVE-2019-11135}
 - kvm: x86: mmu: Recovery of shattered NX large pages (Junaid Shahid) [Orabug: 29967631] {CVE-2018-12207}
 - kvm: Add helper function for creating VM worker threads (Junaid Shahid) [Orabug: 29967631] {CVE-2018-12207}
 - kvm: mmu: ITLB_MULTIHIT mitigation (Paolo Bonzini) [Orabug: 29967631] {CVE-2018-12207}
 - KVM: x86: remove now unneeded hugepage gfn adjustment (Paolo Bonzini) [Orabug: 29967631] {CVE-2018-12207}
 - KVM: x86: make FNAME(fetch) and __direct_map more similar (Paolo Bonzini) [Orabug: 29967631] {CVE-2018-12207}
 - kvm: x86: Do not release the page inside mmu_set_spte() (Junaid Shahid) [Orabug: 29967631] {CVE-2018-12207}
 - x86/cpu: Add Tremont to the cpu vulnerability whitelist (Pawan Gupta) [Orabug: 29967631] {CVE-2018-12207}
 - x86: Add ITLB_MULTIHIT bug infrastructure (Pawan Gupta) [Orabug: 29967631] {CVE-2018-12207}
 - KVM: x86: MMU: Move mapping_level_dirty_bitmap() call in mapping_level() (Takuya Yoshikawa) [Orabug:
 29967631] {CVE-2018-12207}
 - Revert 'KVM: x86: use the fast way to invalidate all pages' (Sean Christopherson) [Orabug: 29967631] {CVE-2018-12207}
 - kvm: Convert kvm_lock to a mutex (Junaid Shahid) [Orabug: 29967631] {CVE-2018-12207}
 - KVM: x86: MMU: Simplify force_pt_level calculation code in FNAME(page_fault)() (Takuya Yoshikawa) [Orabug: 29967631] {CVE-2018-12207}
 - KVM: x86: MMU: Make force_pt_level bool (Takuya Yoshikawa) [Orabug: 29967631] {CVE-2018-12207}
 - KVM: x86: MMU: Remove unused parameter parent_pte from kvm_mmu_get_page() (Takuya Yoshikawa) [Orabug:
 29967631] {CVE-2018-12207}
 - KVM: x86: extend usage of RET_MMIO_PF_* constants (Paolo Bonzini) [Orabug: 29967631] {CVE-2018-12207}
 - KVM: x86: MMU: Make mmu_set_spte() return emulate value (Takuya Yoshikawa) [Orabug: 29967631] {CVE-2018-12207}
 - KVM: x86: MMU: Move parent_pte handling from kvm_mmu_get_page() to link_shadow_page() (Takuya Yoshikawa) [Orabug: 29967631] {CVE-2018-12207}

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-2019-4837.html

Plugin Details

Severity: Medium

ID: 130995

File Name: oraclelinux_ELSA-2019-4837.nasl

Version: 1.9

Type: local

Agent: unix

Published: 11/14/2019

Updated: 10/22/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2019-11135

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:kernel-uek-debug-devel, cpe:/o:oracle:linux:7, p-cpe:/a:oracle:linux:kernel-uek-devel, p-cpe:/a:oracle:linux:kernel-uek-doc, p-cpe:/a:oracle:linux:kernel-uek-firmware, p-cpe:/a:oracle:linux:kernel-uek, p-cpe:/a:oracle:linux:kernel-uek-debug, cpe:/o:oracle:linux:6

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/12/2019

Vulnerability Publication Date: 11/12/2019

Reference Information

CVE: CVE-2018-12207, CVE-2019-11135

IAVA: 2020-A-0325-S