Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2018-4089) (Spectre)

High Nessus Plugin ID 109543

Synopsis

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

Description

Description of changes:

kernel-uek [3.8.13-118.20.6.el7uek]
- perf/hwbp: Simplify the perf-hwbp code, fix documentation (Linus Torvalds) [Orabug: 27947608] {CVE-2018-100199}

[3.8.13-118.20.5.el7uek]
- x86/microcode: probe CPU features on microcode update (Ankur Arora) [Orabug: 27806667]
- x86/microcode: microcode_write() should not reference boot_cpu_data (Ankur Arora) [Orabug: 27806667]
- x86/cpufeatures: use cpu_data in init_scattered_cpuid_flags() (Ankur Arora) [Orabug: 27806667]

[3.8.13-118.20.4.el7uek]
- Drivers: hv: fcopy: set .owner reference for file operations (Joe Jin) [Orabug: 21191022]
- ALSA: usb-audio: Kill stray URB at exiting (Takashi Iwai) [Orabug: 27148281] {CVE-2017-16527}
- HID: usbhid: fix out-of-bounds bug (Jaejoong Kim) [Orabug: 27207929] {CVE-2017-16533}
- [media] cx231xx-cards: fix NULL-deref on missing association descriptor (Johan Hovold) [Orabug: 27208072] {CVE-2017-16536}
- net: cdc_ether: fix divide by 0 on bad descriptors (Bj&oslash rn Mork) [Orabug: 27215201] {CVE-2017-16649}
- x86/microcode/intel: Extend BDW late-loading with a revision check (Jia Zhang) [Orabug: 27343577]
- x86/microcode/intel: Disable late loading on model 79 (Borislav Petkov) [Orabug: 27343577]
- Bluetooth: bnep: bnep_add_connection() should verify that it's dealing with l2cap socket (Al Viro) [Orabug: 27344793] {CVE-2017-15868}
- Bluetooth: hidp: verify l2cap sockets (David Herrmann) [Orabug: 27344793] {CVE-2017-15868}
- ALSA: pcm: prevent UAF in snd_pcm_info (Robb Glasser) [Orabug: 27344843] {CVE-2017-0861} {CVE-2017-0861}
- ptrace: use fsuid, fsgid, effective creds for fs access checks (Jann Horn) [Orabug: 27364691] {CVE-2017-14140}
- sctp: do not peel off an assoc from one netns to another one (Xin Long) [Orabug: 27387001] {CVE-2017-15115}
- Revert 'x86/spec_ctrl: Add 'nolfence' knob to disable fallback for spectre_v2 mitigation' (Ankur Arora) [Orabug: 27601787] {CVE-2017-5715}
- Revert 'x86/spec: Add 'lfence_enabled' in sysfs' (Ankur Arora) [Orabug: 27601787] {CVE-2017-5715}
- Revert 'x86/mitigation/spectre_v2: Add reporting of 'lfence'' (Ankur Arora) [Orabug: 27601787] {CVE-2017-5715}
- x86/mitigation/spectre_v2: Add reporting of 'lfence' (Konrad Rzeszutek Wilk) {CVE-2017-5715}
- x86/spec: Add 'lfence_enabled' in sysfs (Konrad Rzeszutek Wilk) {CVE-2017-5715}
- x86/spec_ctrl: Add 'nolfence' knob to disable fallback for spectre_v2 mitigation (Konrad Rzeszutek Wilk) {CVE-2017-5715}
- x86/spectre: bring spec_ctrl management logic closer to UEK4 (Ankur Arora) [Orabug: 27516512] {CVE-2017-5715}
- x86/cpufeatures: Clean up Spectre v2 related CPUID flags (David Woodhouse) [Orabug: 27516357] {CVE-2017-5715}
- x86/spectre_v2: Remove 0xc2 from spectre_bad_microcodes (Darren Kenny) [Orabug: 27516419] {CVE-2017-5715}
- x86/cpufeature: Blacklist SPEC_CTRL/PRED_CMD on early Spectre v2 microcodes (David Woodhouse) [Orabug: 27516419] {CVE-2017-5715}
- x86: intel-family.h: Add GEMINI_LAKE SOC (Len Brown) [Orabug: 27516419]
- x86/cpu/intel: Introduce macros for Intel family numbers (Dave Hansen) [Orabug: 27516419]
- x86/spectre: expose 'stibp' (Konrad Rzeszutek Wilk) [Orabug: 27516419] {CVE-2017-5715}
- x86/speculation: Add basic IBPB (Indirect Branch Prediction Barrier) support (David Woodhouse) [Orabug: 27516379] {CVE-2017-5715}
- x86/speculation: Use Indirect Branch Prediction Barrier in context switch (Tim Chen) [Orabug: 27516379] {CVE-2017-5715}
- x86/spectre: fix spectre_v1 mitigation indicators (Ankur Arora) [Orabug: 27509932] {CVE-2017-5715}
- x86/ia32/syscall: Clear extended registers %r8-%r15 (Ankur Arora) [Orabug: 27452028] {CVE-2017-5715}
- x86/ia32/syscall: Save full stack frame throughout the entry code (Ankur Arora) [Orabug: 27452028] {CVE-2017-5715}
- x86/ia32/syscall: cleanup trailing whitespace (Ankur Arora) [Orabug: 27452028] {CVE-2017-5715}
- x86/syscall: Clear callee saved registers (%r12-%r15, %rbp, %rbx) (Ankur Arora) [Orabug: 27452028] {CVE-2017-5715}
- x86/syscall: Save callee saved registers on syscall entrance (Ankur Arora) [Orabug: 27452028] {CVE-2017-5715}

Solution

Update the affected unbreakable enterprise kernel packages.

See Also

https://oss.oracle.com/pipermail/el-errata/2018-May/007660.html

https://oss.oracle.com/pipermail/el-errata/2018-May/007661.html

Plugin Details

Severity: High

ID: 109543

File Name: oraclelinux_ELSA-2018-4089.nasl

Version: 1.6

Type: local

Agent: unix

Published: 2018/05/03

Updated: 2019/04/05

Dependencies: 12634, 122878

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.2

Temporal Score: 5.6

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

Temporal Vector: CVSS2#E:POC/RL:OF/RC:C

CVSS v3.0

Base Score: 7.8

Temporal Score: 7

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

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

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:dtrace-modules-3.8.13-118.20.6.el6uek, p-cpe:/a:oracle:linux:dtrace-modules-3.8.13-118.20.6.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: 2018/05/02

Vulnerability Publication Date: 2017/09/05

Reference Information

CVE: CVE-2017-0861, CVE-2017-14140, CVE-2017-15115, CVE-2017-15868, CVE-2017-16527, CVE-2017-16533, CVE-2017-16536, CVE-2017-16649, CVE-2017-5715, CVE-2018-100199

IAVA: 2018-A-0020