Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2018-4126) (Spectre)

medium Nessus Plugin ID 110404
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The remote Oracle Linux host is missing one or more security updates.


Description of changes:

- x86/bugs/IBRS: Keep SSBD mitigation in effect if spectre_v2=ibrs is selected (Mihai Carabas)
- fs/pstore: update the backend parameter in pstore module (Wang Long) [Orabug: 27994372]
- kvm: vmx: Reinstate support for CPUs without virtual NMI (Paolo Bonzini) [Orabug: 28041210]
- dm crypt: add big-endian variant of plain64 IV (Milan Broz) [Orabug: 28043932]
- x86/bugs: Rename SSBD_NO to SSB_NO (Konrad Rzeszutek Wilk) [Orabug: 28063992] {CVE-2018-3639}
- KVM: SVM: Implement VIRT_SPEC_CTRL support for SSBD (Tom Lendacky) [Orabug: 28063992] [Orabug: 28069548] {CVE-2018-3639}
- x86/speculation, KVM: Implement support for VIRT_SPEC_CTRL/LS_CFG (Thomas Gleixner) [Orabug: 28063992] {CVE-2018-3639}
- x86/bugs: Rework spec_ctrl base and mask logic (Thomas Gleixner) [Orabug: 28063992] {CVE-2018-3639}
- x86/bugs: Expose x86_spec_ctrl_base directly (Thomas Gleixner) [Orabug: 28063992] {CVE-2018-3639}
- x86/bugs: Unify x86_spec_ctrl_{set_guest,restore_host} (Borislav Petkov) [Orabug: 28063992] {CVE-2018-3639}
- x86/speculation: Rework speculative_store_bypass_update() (Thomas Gleixner) [Orabug: 28063992] {CVE-2018-3639}
- x86/speculation: Add virtualized speculative store bypass disable support (Tom Lendacky) [Orabug: 28063992] {CVE-2018-3639}
- x86/bugs, KVM: Extend speculation control for VIRT_SPEC_CTRL (Thomas Gleixner) [Orabug: 28063992] {CVE-2018-3639}
- x86/speculation: Handle HT correctly on AMD (Thomas Gleixner) [Orabug: 28063992] {CVE-2018-3639}
- x86/cpufeatures: Add FEATURE_ZEN (Thomas Gleixner) [Orabug: 28063992] {CVE-2018-3639}
- x86/cpu/AMD: Fix erratum 1076 (CPB bit) (Borislav Petkov) [Orabug: 28063992] {CVE-2018-3639}

- perf/hwbp: Simplify the perf-hwbp code, fix documentation (Linus Torvalds) [Orabug: 27947602] {CVE-2018-1000199}
- Revert 'perf/hwbp: Simplify the perf-hwbp code, fix documentation' (Brian Maly) [Orabug: 27947602]


Update the affected unbreakable enterprise kernel packages.

See Also

Plugin Details

Severity: Medium

ID: 110404

File Name: oraclelinux_ELSA-2018-4126.nasl

Version: 1.9

Type: local

Agent: unix

Published: 6/8/2018

Updated: 9/27/2019

Dependencies: ssh_get_info.nasl, linux_alt_patch_detect.nasl

Risk Information


Risk Factor: Medium

Score: 6.7


Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.8

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

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


Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

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

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

Vulnerability Information

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

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/7/2018

Vulnerability Publication Date: 5/22/2018

Reference Information

CVE: CVE-2018-1000199, CVE-2018-3639