Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2018-4025) (Meltdown)

High Nessus Plugin ID 106670

Synopsis

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

Description

Description of changes:

[4.1.12-112.14.14.el7uek]
- drivers/char/mem.c: deny access in open operation when securelevel is set (Ethan Zhao) [Orabug: 27234850] [Orabug: 27234850]
- hugetlb: fix nr_pmds accounting with shared page tables (Kirill A. Shutemov) [Orabug: 26988581]
- x86/IBRS: Drop unnecessary WRITE_ONCE (Boris Ostrovsky) [Orabug: 27416198]
- x86/IBRS: Don't try to change IBRS mode if IBRS is not available (Boris Ostrovsky) [Orabug: 27416198]
- x86/IBRS: Remove support for IBRS_ENABLED_USER mode (Boris Ostrovsky) [Orabug: 27416198]
- x86: Include linux/device.h in bugs_64.c (Boris Ostrovsky) [Orabug: 27418896]
- x86/spectre: Drop the warning about ibrs being obsolete. (Konrad Rzeszutek Wilk)
- x86/spec: Don't print the Missing arguments for option spectre_v2. (Konrad Rzeszutek Wilk)
- x86/spec: Also print IBRS if IBPB is disabled. (Konrad Rzeszutek Wilk)
- x86/IBPB: Provide debugfs interface for changing IBPB mode (Boris Ostrovsky) [Orabug: 27449065]
- xen: Make PV Dom0 Linux kernel NUMA aware (Elena Ufimtseva)
- net/rds: Fix incorrect error handling (H&aring kon Bugge) [Orabug: 26848729]
- net/rds: use multiple sge than buddy allocation in congestion code (Wei Lin Guay) [Orabug: 26848729]
- Revert 'RDS: fix the sg allocation based on actual message size' (Wei Lin Guay) [Orabug: 26848729]
- Revert 'RDS: avoid large pages for sg allocation for TCP transport' (Wei Lin Guay) [Orabug: 26848729]
- Revert 'net/rds: Reduce memory footprint in rds_sendmsg' (Wei Lin Guay) [Orabug: 26848729]
- net/rds: reduce memory footprint during ib_post_recv in IB transport (Wei Lin Guay) [Orabug: 26848729]
- net/rds: reduce memory footprint during rds_sendmsg with IB transport (Wei Lin Guay) [Orabug: 26848729]
- net/rds: set the rds_ib_init_frag based on supported sge (Wei Lin Guay) [Orabug: 26848729]
- bnxt_en: Fix possible corrupted NVRAM parameters from firmware response. (Michael Chan) [Orabug: 27199588]
- x86, kasan: Fix build failure on KASAN=y KMEMCHECK=y kernels (Andrey Ryabinin) [Orabug: 27255122]
- x86, efi, kasan: Fix build failure on !KASAN KMEMCHECK=y kernels (Andrey Ryabinin) [Orabug: 27255122]
- x86, efi, kasan: #undef memset/memcpy/memmove per arch (Andrey Ryabinin) [Orabug: 27255122]
- Revert 'Makefile: Build with -Werror=date-time if the compiler supports it' (Gayatri Vasudevan) [Orabug: 27255122]
- dccp: CVE-2017-8824: use-after-free in DCCP code (Mohamed Ghannam) [Orabug: 27290300] {CVE-2017-8824}
- x86/efi: Initialize and display UEFI secure boot state a bit later during init (Daniel Kiper) [Orabug: 27309477]
- x86/espfix: Init espfix on the boot CPU side (Zhu Guihua) [Orabug: 27344552]
- x86/espfix: Add 'cpu' parameter to init_espfix_ap() (Zhu Guihua) [Orabug: 27344552]
- ALSA: pcm: prevent UAF in snd_pcm_info (Robb Glasser) [Orabug: 27344841] {CVE-2017-0861} {CVE-2017-0861}
- fs/ocfs2: remove page cache for converted direct write (Wengang Wang)
- Revert 'ocfs2: code clean up for direct io' (Wengang Wang)
- assoc_array: Fix a buggy node-splitting case (David Howells) [Orabug: 27364592] {CVE-2017-12193} {CVE-2017-12193}
- Sanitize 'move_pages()' permission checks (Linus Torvalds) [Orabug: 27364690] {CVE-2017-14140}
- pti: compile fix for when PTI is disabled (Pavel Tatashin) [Orabug: 27383147] {CVE-2017-5754}
- sctp: do not peel off an assoc from one netns to another one (Xin Long) [Orabug: 27386999] {CVE-2017-15115}
- net: ipv4: fix for a race condition in raw_sendmsg (Mohamed Ghannam) [Orabug: 27390682] {CVE-2017-17712}
- mlx4: add mstflint secure boot access kernel support (Qing Huang) [Orabug: 27404202]
- x86: Move STUFF_RSB in to the idt macro (Konrad Rzeszutek Wilk)
- x86/spec: STUFF_RSB _before_ ENABLE_IBRS (Konrad Rzeszutek Wilk)
- x86: Move ENABLE_IBRS in the interrupt macro. (Konrad Rzeszutek Wilk) [Orabug: 27449045]

Solution

Update the affected unbreakable enterprise kernel packages.

See Also

https://oss.oracle.com/pipermail/el-errata/2018-February/007524.html

https://oss.oracle.com/pipermail/el-errata/2018-February/007525.html

Plugin Details

Severity: High

ID: 106670

File Name: oraclelinux_ELSA-2018-4025.nasl

Version: 3.5

Type: local

Agent: unix

Published: 2018/02/08

Modified: 2018/07/24

Dependencies: 12634

Risk Information

Risk Factor: High

CVSSv2

Base Score: 7.2

Temporal Score: 6.3

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

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

CVSSv3

Base Score: 7.8

Temporal Score: 7.5

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:H/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: 2018/02/07

Reference Information

CVE: CVE-2017-0861, CVE-2017-12193, CVE-2017-14140, CVE-2017-15115, CVE-2017-17712, CVE-2017-5754, CVE-2017-8824

IAVA: 2018-A-0019