Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2018-4022) (Meltdown) (Spectre)

High Nessus Plugin ID 106468


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


Description of changes:

kernel-uek [3.8.13-118.20.2.el7uek]
- x86: Add another set of MSR accessor functions (Borislav Petkov) [Orabug: 27444923] {CVE-2017-5753}
- userns: prevent speculative execution (Elena Reshetova) [Orabug: 27444923] {CVE-2017-5753}
- udf: prevent speculative execution (Elena Reshetova) [Orabug: 27444923] {CVE-2017-5753}
- fs: prevent speculative execution (Elena Reshetova) [Orabug: 27444923] {CVE-2017-5753}
- qla2xxx: prevent speculative execution (Elena Reshetova) [Orabug: 27444923] {CVE-2017-5753}
- p54: prevent speculative execution (Elena Reshetova) [Orabug: 27444923] {CVE-2017-5753}
- carl9170: prevent speculative execution (Elena Reshetova) [Orabug: 27444923] {CVE-2017-5753}
- uvcvideo: prevent speculative execution (Elena Reshetova) [Orabug: 27444923] {CVE-2017-5753}
- locking/barriers: introduce new observable speculation barrier (Elena Reshetova) [Orabug: 27444923] {CVE-2017-5753}
- x86/cpu/AMD: Remove now unused definition of MFENCE_RDTSC feature (Elena Reshetova) [Orabug: 27444923] {CVE-2017-5753}
- x86/cpu/AMD: Make the LFENCE instruction serialized (Elena Reshetova) [Orabug: 27444923] {CVE-2017-5753}
- x86/rsb: add comment specifying why we skip STUFF_RSB (Ankur Arora) [Orabug: 27451658] {CVE-2017-5715}
- x86/rsb: make STUFF_RSB jmp labels more robust (Ankur Arora) [Orabug: 27451658] {CVE-2017-5715}
- x86/spec: Also print IBRS if IBPB is disabled. (Konrad Rzeszutek Wilk) {CVE-2017-5715}
- x86/spectre: Drop the warning about ibrs being obsolete. (Konrad Rzeszutek Wilk) {CVE-2017-5715}
- Add set_ibrs_disabled and set_ibpb_disabled (Konrad Rzeszutek Wilk) [Orabug: 27376697] {CVE-2017-5715}
- x86/spec: Don't print the Missing arguments for option spectre_v2 (Konrad Rzeszutek Wilk) [Orabug: 27376697] {CVE-2017-5715}
- x86/boot: Add early cmdline parsing for options with arguments (Tom Lendacky) [Orabug: 27376697] {CVE-2017-5715}
- x86, boot: Carve out early cmdline parsing function (Borislav Petkov) [Orabug: 27376697] - x86: Add command-line options 'spectre_v2' and 'nospectre_v2' (Kanth Ghatraju) [Orabug: 27376697] {CVE-2017-5715}
- x86: Fix kABI build breakage (Konrad Rzeszutek Wilk) [Orabug: 27376697] {CVE-2017-5715}
- x86/mm: Only set IBPB when the new thread cannot ptrace current thread (Konrad Rzeszutek Wilk) [Orabug: 27376697] {CVE-2017-5715}
- x86: Use PRED_CMD MSR when ibpb is enabled (Konrad Rzeszutek Wilk) [Orabug: 27376697] {CVE-2017-5715}
- x86/mm: Set IBPB upon context switch (Brian Maly) [Orabug: 27376697] {CVE-2017-5715}
- x86: Display correct settings for the SPECTRE_V[12] bug (Kanth Ghatraju) [Orabug: 27376697] {CVE-2017-5715} {CVE-2017-5753}
- x86/cpu: Implement CPU vulnerabilites sysfs functions (Thomas Gleixner) [Orabug: 27376697] {CVE-2017-5715} {CVE-2017-5753}
- x86/IBRS/IBPB: Set sysctl_ibrs/ibpb_enabled properly (Boris Ostrovsky) [Orabug: 27376697] {CVE-2017-5715}
- x86/spec_ctrl: Disable if running as Xen PV guest (Konrad Rzeszutek Wilk) [Orabug: 27376697] {CVE-2017-5715}
- sysfs/cpu: Add vulnerability folder (Thomas Gleixner) [Orabug: 27376697] {CVE-2017-5715} {CVE-2017-5754}
- x86, cpu: Expand cpufeature facility to include cpu bugs (Borislav Petkov) [Orabug: 27376697] {CVE-2017-5715}
- x86/cpufeatures: Add X86_BUG_SPECTRE_V[12] (Kanth Ghatraju) [Orabug: 27376697] {CVE-2017-5715}
- x86/cpufeatures: Add X86_BUG_CPU_MELTDOWN (Kanth Ghatraju) [Orabug: 27376697] {CVE-2017-5754}
- x86/entry: STUFF_RSB only after switching to kernel CR3 (Ankur Arora) [Orabug: 27376697] {CVE-2017-5715}
- x86/entry: Stuff RSB for entry to kernel for non-SMEP platform (Tim Chen) [Orabug: 27376697] {CVE-2017-5715}
- x86/IBRS: Make sure we restore MSR_IA32_SPEC_CTRL to a valid value (Boris Ostrovsky) [Orabug: 27376697] {CVE-2017-5715}
- x86: Use IBRS for firmware update path (David Woodhouse) [Orabug: 27376697] {CVE-2017-5715}
- x86/microcode: Recheck IBRS features on microcode reload (Tim Chen) [Orabug: 27376697] {CVE-2017-5715}
- x86/idle: Disable IBRS entering idle and enable it on wakeup (Tim Chen) [Orabug: 27376697] {CVE-2017-5715}
- x86/spec_ctrl: Add sysctl knobs to enable/disable SPEC_CTRL feature (Tim Chen) [Orabug: 27376697] {CVE-2017-5715}
- x86/enter: Use IBRS on syscall and interrupts (Tim Chen) [Orabug: 27376697] {CVE-2017-5715}
- x86/enter: MACROS to set/clear IBRS (Tim Chen) [Orabug: 27376697] {CVE-2017-5715}
- x86/feature: Detect the x86 IBRS feature to control Speculation (Tim Chen) [Orabug: 27376697] {CVE-2017-5715}
- x86/pti/efi: broken conversion from efi to kernel page table (Pavel Tatashin) [Orabug: 27333764] {CVE-2017-5754}
- PTI: unbreak EFI old_memmap (Jiri Kosina) [Orabug: 27333764] [Orabug: 27333760] {CVE-2017-5754} {CVE-2017-5754}
- kaiser: Set _PAGE_NX only if supported (Lepton Wu) [Orabug: 27333764] {CVE-2017-5754}
- kaiser: rename X86_FEATURE_KAISER to X86_FEATURE_PTI (Mike Kravetz) [Orabug: 27333764] {CVE-2017-5754}
- KPTI: Rename to PAGE_TABLE_ISOLATION (Kees Cook) [Orabug: 27333764] {CVE-2017-5754}
- x86/kaiser: Check boottime cmdline params (Mike Kravetz) [Orabug: 27333764] {CVE-2017-5754}
- kaiser: x86: Fix NMI handling (Jiri Kosina) [Orabug: 27333764] {CVE-2017-5754}
- kaiser: move paravirt clock vsyscall mapping out of kaiser_init (Mike Kravetz) [Orabug: 27333764] {CVE-2017-5754}
- kaiser: disable if xen PARAVIRT (Mike Kravetz) [Orabug: 27333764] {CVE-2017-5754}
- x86/kaiser: Reenable PARAVIRT (Borislav Petkov) [Orabug: 27333764] {CVE-2017-5754}
- kaiser: kaiser_flush_tlb_on_return_to_user() check PCID (Hugh Dickins) [Orabug: 27333764] {CVE-2017-5754}
- kaiser: asm/tlbflush.h handle noPGE at lower level (Hugh Dickins) [Orabug: 27333764] {CVE-2017-5754}
- kaiser: use ALTERNATIVE instead of x86_cr3_pcid_noflush (Hugh Dickins) [Orabug: 27333764] {CVE-2017-5754}
- x86/kaiser: Rename and simplify X86_FEATURE_KAISER handling (Borislav Petkov) [Orabug: 27333764] {CVE-2017-5754}
- kaiser: add 'nokaiser' boot option, using ALTERNATIVE (Hugh Dickins) [Orabug: 27333764] {CVE-2017-5754}
- x86/alternatives: add asm ALTERNATIVE macro (Mike Kravetz) [Orabug: 27333764] {CVE-2017-5754}
- kaiser: alloc_ldt_struct() use get_zeroed_page() (Hugh Dickins) [Orabug: 27333764] {CVE-2017-5754}
- x86: kvmclock: Disable use from vDSO if KPTI is enabled (Ben Hutchings) [Orabug: 27333764] {CVE-2017-5754}
- kaiser: Fix build with CONFIG_FUNCTION_GRAPH_TRACER (Kees Cook) [Orabug: 27333764] {CVE-2017-5754}
- x86/mm/kaiser: re-enable vsyscalls (Andrea Arcangeli) [Orabug: 27333764] {CVE-2017-5754}
- KAISER: Kernel Address Isolation (Richard Fellner) [Orabug: 27333764] {CVE-2017-5754}
- kprobes: Prohibit probing on .entry.text code (Masami Hiramatsu) [Orabug: 27333764] {CVE-2017-5754}
- x86/mm/64: Fix reboot interaction with CR4.PCIDE (Andy Lutomirski) [Orabug: 27333764] {CVE-2017-5754}
- x86/mm: Enable CR4.PCIDE on supported systems (Andy Lutomirski) [Orabug: 27333764] {CVE-2017-5754}
- x86/mm: Add the 'nopcid' boot option to turn off PCID (Andy Lutomirski) [Orabug: 27333764] {CVE-2017-5754}
- x86/mm: Disable PCID on 32-bit kernels (Andy Lutomirski) [Orabug: 27333764] {CVE-2017-5754}
- x86/mm: Remove the UP asm/tlbflush.h code, always use the (formerly) SMP code (Andy Lutomirski) [Orabug: 27333764] {CVE-2017-5754}
- x86/mm: Fix flush_tlb_page() on Xen (Andy Lutomirski) [Orabug: 27333764] {CVE-2017-5754}
- x86/mm: Disable preemption during CR3 read+write (Sebastian Andrzej Siewior) [Orabug: 27333764] {CVE-2017-5754}
- sched/core: Idle_task_exit() shouldn't use switch_mm_irqs_off() (Andy Lutomirski) [Orabug: 27333764] {CVE-2017-5754}
- x86/mm, sched/core: Turn off IRQs in switch_mm() (Andy Lutomirski) [Orabug: 27333764] {CVE-2017-5754}
- x86/mm, sched/core: Uninline switch_mm() (Andy Lutomirski) [Orabug: 27333764] {CVE-2017-5754}
- x86/mm: Build arch/x86/mm/tlb.c even on !SMP (Andy Lutomirski) [Orabug: 27333764] {CVE-2017-5754}
- sched/core: Add switch_mm_irqs_off() and use it in the scheduler (Andy Lutomirski) [Orabug: 27333764] {CVE-2017-5754}
- mm/mmu_context, sched/core: Fix mmu_context.h assumption (Ingo Molnar) [Orabug: 27333764] {CVE-2017-5754}
- x86/mm: If INVPCID is available, use it to flush global mappings (Andy Lutomirski) [Orabug: 27333764] {CVE-2017-5754}
- x86/mm: Add a 'noinvpcid' boot option to turn off INVPCID (Andy Lutomirski) [Orabug: 27333764] {CVE-2017-5754}
- x86/mm: Fix INVPCID asm constraint (Borislav Petkov) [Orabug: 27333764] {CVE-2017-5754}
- x86/mm: Add INVPCID helpers (Andy Lutomirski) [Orabug: 27333764] {CVE-2017-5754}
- x86: Clean up cr4 manipulation (Andy Lutomirski) [Orabug: 27333764] {CVE-2017-5754}
- x86/paravirt: Dont patch flush_tlb_single (Thomas Gleixner) [Orabug: 27333764] {CVE-2017-5754}
- x86/ldt: Make modify_ldt synchronous (Andy Lutomirski) [Orabug: 27333764] {CVE-2017-5754} {CVE-2015-5157}


Update the affected unbreakable enterprise kernel packages.

See Also

Plugin Details

Severity: High

ID: 106468

File Name: oraclelinux_ELSA-2018-4022.nasl

Version: $Revision: 1.3 $

Type: local

Agent: unix

Published: 2018/01/30

Modified: 2018/02/01

Dependencies: 12634

Risk Information

Risk Factor: High


Base Score: 7.2

Temporal Score: 6.8

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

Temporal Vector: CVSS2#E:F/RL:ND/RC:ND


Base Score: 5.6

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

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:dtrace-modules-3.8.13-118.20.2.el6uek, p-cpe:/a:oracle:linux:dtrace-modules-3.8.13-118.20.2.el7uek, 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: 2018/01/29

Reference Information

CVE: CVE-2015-5157, CVE-2017-5715, CVE-2017-5753, CVE-2017-5754

OSVDB: 171888, 171894, 171897

IAVA: 2018-A-0019, 2018-A-0020