The remote Oracle Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2018-4071 advisory.

  - The x86/fpu (Floating Point Unit) subsystem in the Linux kernel before 4.13.5, when a processor supports     the xsave feature but not the xsaves feature, does not correctly handle attempts to set reserved bits in     the xstate header via the ptrace() or rt_sigreturn() system call, allowing local users to read the FPU     registers of other processes on the system, related to arch/x86/kernel/fpu/regset.c and     arch/x86/kernel/fpu/signal.c. (CVE-2017-15537)

  - drivers/media/usb/dvb-usb/dib0700_devices.c in the Linux kernel through 4.13.11 allows local users to     cause a denial of service (BUG and system crash) or possibly have unspecified other impact via a crafted     USB device. (CVE-2017-16646)

  - The get_endpoints function in drivers/usb/misc/usbtest.c in the Linux kernel through 4.13.11 allows local     users to cause a denial of service (NULL pointer dereference and system crash) or possibly have     unspecified other impact via a crafted USB device. (CVE-2017-16532)

  - A flaw was found in the Linux 4.x kernel's implementation of 32-bit syscall interface for bridging. This     allowed a privileged user to arbitrarily write to a limited range of kernel memory. (CVE-2018-1068)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote OracleVM system is missing necessary patches to address critical security updates : please see Oracle VM Security Advisory OVMSA-2018-0035 for details.

The remote OracleVM system is missing necessary patches to address critical security updates :

  - tty: Fix race in pty_write leading to NULL deref (Todd     Vierling) 

  - ocfs2/dlm: ignore cleaning the migration mle that is     inuse (xuejiufei) [Orabug: 26479780]

  - KEYS: fix dereferencing NULL payload with nonzero length     (Eric Biggers) [Orabug: 26592025]

  - oracleasm: Copy the integrity descriptor (Martin K.
    Petersen) 

  - mm: Tighten x86 /dev/mem with zeroing reads (Kees Cook)     [Orabug: 26675925] (CVE-2017-7889)

  - xscore: add dma address check (Zhu Yanjun) [Orabug:
    27058468]

  - more bio_map_user_iov leak fixes (Al Viro) [Orabug:
    27069042] (CVE-2017-12190)

  - fix unbalanced page refcounting in bio_map_user_iov     (Vitaly Mayatskikh) [Orabug: 27069042] (CVE-2017-12190)

  - nvme: Drop nvmeq->q_lock before dma_pool_alloc, so as to     prevent hard lockups (Aruna Ramakrishna) [Orabug:
    25409587]

  - nvme: Handle PM1725 HIL reset (Martin K. Petersen)     [Orabug: 26277600]

  - char: lp: fix possible integer overflow in lp_setup     (Willy Tarreau) [Orabug: 26403940] (CVE-2017-1000363)

  - ALSA: timer: Fix missing queue indices reset at     SNDRV_TIMER_IOCTL_SELECT (Takashi Iwai) [Orabug:
    26403956] (CVE-2017-1000380)

  - ALSA: timer: Fix race between read and ioctl (Takashi     Iwai) [Orabug: 26403956] (CVE-2017-1000380)

  - ALSA: timer: fix NULL pointer dereference in read/ioctl     race (Vegard Nossum) [Orabug: 26403956]     (CVE-2017-1000380)

  - ALSA: timer: Fix negative queue usage by racy accesses     (Takashi Iwai) [Orabug: 26403956] (CVE-2017-1000380)

  - ALSA: timer: Fix race at concurrent reads (Takashi Iwai)     [Orabug: 26403956] (CVE-2017-1000380)

  - ALSA: timer: Fix race among timer ioctls (Takashi Iwai)     [Orabug: 26403956] (CVE-2017-1000380)

  - ipv6/dccp: do not inherit ipv6_mc_list from parent (WANG     Cong) [Orabug: 26404005] (CVE-2017-9077)

  - ocfs2: fix deadlock issue when taking inode lock at vfs     entry points (Eric Ren) [Orabug: 26427126]

  - ocfs2/dlmglue: prepare tracking logic to avoid recursive     cluster lock (Eric Ren) [Orabug: 26427126]

  - ping: implement proper locking (Eric Dumazet) [Orabug:
    26540286] (CVE-2017-2671)

  - aio: mark AIO pseudo-fs noexec (Jann Horn) [Orabug:
    26643598] (CVE-2016-10044)

  - vfs: Commit to never having exectuables on proc and     sysfs. (Eric W. Biederman) [Orabug: 26643598]     (CVE-2016-10044)

  - vfs, writeback: replace FS_CGROUP_WRITEBACK with     SB_I_CGROUPWB (Tejun Heo) [Orabug: 26643598]     (CVE-2016-10044)

  - x86/acpi: Prevent out of bound access caused by broken     ACPI tables (Seunghun Han) [Orabug: 26643645]     (CVE-2017-11473)

  - sctp: do not inherit ipv6_[mc|ac|fl]_list from parent     (Eric Dumazet) [Orabug: 26650883] (CVE-2017-9075)

  - [media] saa7164: fix double fetch PCIe access condition     (Steven Toth) [Orabug: 26675142] (CVE-2017-8831)

  - [media] saa7164: fix sparse warnings (Hans Verkuil)     [Orabug: 26675142] (CVE-2017-8831)

  - fs: __generic_file_splice_read retry lookup on     AOP_TRUNCATED_PAGE (Abhi Das) [Orabug: 26797306]

  - timerfd: Protect the might cancel mechanism proper     (Thomas Gleixner) [Orabug: 26899787] (CVE-2017-10661)

  - scsi: scsi_transport_iscsi: fix the issue that     iscsi_if_rx doesn't parse nlmsg properly (Xin Long)     [Orabug: 26988627] (CVE-2017-14489)

  - mqueue: fix a use-after-free in sys_mq_notify (Cong     Wang) [Orabug: 26643556] (CVE-2017-11176)

  - ipv6: avoid overflow of offset in ip6_find_1stfragopt     (Sabrina Dubroca) [Orabug: 27011273] (CVE-2017-7542)

  - packet: fix tp_reserve race in packet_set_ring (Willem     de Bruijn) [Orabug: 27002450] (CVE-2017-1000111)

  - mlx4_core: calculate log_num_mtt based on total system     memory (Wei Lin Guay) [Orabug: 26883934]

  - xen/x86: Add interface for querying amount of host     memory (Boris Ostrovsky) [Orabug: 26883934]

  - Bluetooth: Properly check L2CAP config option output     buffer length (Ben Seri) [Orabug: 26796364]     (CVE-2017-1000251)

  - xen: fix bio vec merging (Roger Pau Monne) [Orabug:
    26645550] (CVE-2017-12134)

  - fs/exec.c: account for argv/envp pointers (Kees Cook)     [Orabug: 26638921] (CVE-2017-1000365) (CVE-2017-1000365)

  - l2tp: fix racy SOCK_ZAPPED flag check in     l2tp_ip[,6]_bind (Guillaume Nault) [Orabug: 26586047]     (CVE-2016-10200)

  - xfs: fix two memory leaks in xfs_attr_list.c error paths     (Mateusz Guzik) [Orabug: 26586022] (CVE-2016-9685)

  - KEYS: Disallow keyrings beginning with '.' to be joined     as session keyrings (David Howells) [Orabug: 26585994]     (CVE-2016-9604)

  - ipv6: fix out of bound writes in __ip6_append_data (Eric     Dumazet) [Orabug: 26578198] (CVE-2017-9242)

  - posix_acl: Clear SGID bit when setting file permissions     (Jan Kara) [Orabug: 25507344] (CVE-2016-7097)     (CVE-2016-7097)

  - nfsd: check for oversized NFSv2/v3 arguments (J. Bruce     Fields) [Orabug: 26366022] (CVE-2017-7645)

The remote Oracle Linux 6 / 7 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2017-3659 advisory.

  - A missing authorization check in the fscrypt_process_policy function in fs/crypto/policy.c in the ext4 and     f2fs filesystem encryption support in the Linux kernel before 4.7.4 allows a user to assign an encryption     policy to a directory owned by a different user, potentially creating a denial of service.
    (CVE-2016-10318)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Several vulnerabilities have been discovered in the Linux kernel that may lead to privilege escalation, denial of service or information leaks.

  - CVE-2017-7518     Andy Lutomirski discovered that KVM is prone to an     incorrect debug exception (#DB) error occurring while     emulating a syscall instruction. A process inside a     guest can take advantage of this flaw for privilege     escalation inside a guest.

  - CVE-2017-7558 (stretch only)     Stefano Brivio of Red Hat discovered that the SCTP     subsystem is prone to a data leak vulnerability due to     an out-of-bounds read flaw, allowing to leak up to 100     uninitialized bytes to userspace.

  - CVE-2017-10661 (jessie only)     Dmitry Vyukov of Google reported that the timerfd     facility does not properly handle certain concurrent     operations on a single file descriptor. This allows a     local attacker to cause a denial of service or     potentially execute arbitrary code.

  - CVE-2017-11600     Bo Zhang reported that the xfrm subsystem does not     properly validate one of the parameters to a netlink     message. Local users with the CAP_NET_ADMIN capability     can use this to cause a denial of service or potentially     to execute arbitrary code.

  - CVE-2017-12134 / #866511 / XSA-229     Jan H. Schoenherr of Amazon discovered that when Linux     is running in a Xen PV domain on an x86 system, it may     incorrectly merge block I/O requests. A buggy or     malicious guest may trigger this bug in dom0 or a PV     driver domain, causing a denial of service or     potentially execution of arbitrary code.

  This issue can be mitigated by disabling merges on the underlying   back-end block devices, e.g.:echo 2 >   /sys/block/nvme0n1/queue/nomerges

  - CVE-2017-12146 (stretch only)     Adrian Salido of Google reported a race condition in     access to the'driver_override' attribute for platform     devices in sysfs. If unprivileged users are permitted to     access this attribute, this might allow them to gain     privileges.

  - CVE-2017-12153     Bo Zhang reported that the cfg80211 (wifi) subsystem     does not properly validate the parameters to a netlink     message. Local users with the CAP_NET_ADMIN capability     (in any user namespace with a wifi device) can use this     to cause a denial of service.

  - CVE-2017-12154     Jim Mattson of Google reported that the KVM     implementation for Intel x86 processors did not     correctly handle certain nested hypervisor     configurations. A malicious guest (or nested guest in a     suitable L1 hypervisor) could use this for denial of     service.

  - CVE-2017-14106     Andrey Konovalov discovered that a user-triggerable     division by zero in the tcp_disconnect() function could     result in local denial of service.

  - CVE-2017-14140     Otto Ebeling reported that the move_pages() system call     performed insufficient validation of the UIDs of the     calling and target processes, resulting in a partial     ASLR bypass. This made it easier for local users to     exploit vulnerabilities in programs installed with the     set-UID permission bit set.

  - CVE-2017-14156     'sohu0106' reported an information leak in the atyfb     video driver. A local user with access to a framebuffer     device handled by this driver could use this to obtain     sensitive information.

  - CVE-2017-14340     Richard Wareing discovered that the XFS implementation     allows the creation of files with the 'realtime' flag on     a filesystem with no realtime device, which can result     in a crash (oops). A local user with access to an XFS     filesystem that does not have a realtime device can use     this for denial of service.

  - CVE-2017-14489     ChunYu Wang of Red Hat discovered that the iSCSI     subsystem does not properly validate the length of a     netlink message, leading to memory corruption. A local     user with permission to manage iSCSI devices can use     this for denial of service or possibly to execute     arbitrary code.

  - CVE-2017-14497 (stretch only)     Benjamin Poirier of SUSE reported that vnet headers are     not properly handled within the tpacket_rcv() function     in the raw packet (af_packet) feature. A local user with     the CAP_NET_RAW capability can take advantage of this     flaw to cause a denial of service (buffer overflow, and     disk and memory corruption) or have other impact.

  - CVE-2017-1000111     Andrey Konovalov of Google reported a race condition in     the raw packet (af_packet) feature. Local users with the     CAP_NET_RAW capability can use this for denial of     service or possibly to execute arbitrary code.

  - CVE-2017-1000112     Andrey Konovalov of Google reported a race condition     flaw in the UDP Fragmentation Offload (UFO) code. A     local user can use this flaw for denial of service or     possibly to execute arbitrary code.

  - CVE-2017-1000251 / #875881     Armis Labs discovered that the Bluetooth subsystem does     not properly validate L2CAP configuration responses,     leading to a stack-based buffer overflow. This is one of     several vulnerabilities dubbed 'Blueborne'. A nearby     attacker can use this to cause a denial of service or     possibly to execute arbitrary code on a system with     Bluetooth enabled.

  - CVE-2017-1000252 (stretch only)     Jan H. Schoenherr of Amazon reported that the KVM     implementation for Intel x86 processors did not     correctly validate interrupt injection requests. A local     user with permission to use KVM could use this for     denial of service.

  - CVE-2017-1000370     The Qualys Research Labs reported that a large argument     or environment list can result in ASLR bypass for 32-bit     PIE binaries.

  - CVE-2017-1000371     The Qualys Research Labs reported that a large argument     or environment list can result in a stack/heap clash for     32-bit PIE binaries.

  - CVE-2017-1000380     Alexander Potapenko of Google reported a race condition     in the ALSA (sound) timer driver, leading to an     information leak. A local user with permission to access     sound devices could use this to obtain sensitive     information.

Debian disables unprivileged user namespaces by default, but if they are enabled (via the kernel.unprivileged_userns_clone sysctl) then CVE-2017-11600, CVE-2017-14497 and CVE-2017-1000111 can be exploited by any local user.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2018:3096 advisory.

  - kernel: AIO write triggers integer overflow in some protocols (CVE-2015-8830)

  - kernel: Information leak when handling NM entries containing NUL (CVE-2016-4913)

  - kernel: Use-after-free in snd_pcm_info function in ALSA subsystem potentially leads to privilege     escalation (CVE-2017-0861)

  - kernel: Handling of might_cancel queueing is not properly pretected against race (CVE-2017-10661)

  - kernel: Salsa20 encryption algorithm does not correctly handle zero-length inputs allowing local attackers     to cause denial-of-service (CVE-2017-17805)

  - kernel: Inifinite loop vulnerability in mm/madvise.c:madvise_willneed() function allows local denial of     service (CVE-2017-18208)

  - kernel: Mishandling mutex within libsas allowing local Denial of Service (CVE-2017-18232)

  - kernel: out-of-bounds access in the show_timer function in kernel/time/posix-timers.c (CVE-2017-18344)

  - kernel: Division by zero in change_port_settings in drivers/usb/serial/io_ti.c resulting in a denial of     service (CVE-2017-18360)

  - kernel: NULL pointer dereference in ext4/mballoc.c:ext4_process_freed_data() when mounting crafted ext4     image (CVE-2018-1092)

  - kernel: NULL pointer dereference in ext4/xattr.c:ext4_xattr_inode_hash() causes crash with crafted ext4     image (CVE-2018-1094)

  - kernel: vhost: Information disclosure in vhost/vhost.c:vhost_new_msg() (CVE-2018-1118)

  - kernel: fuse-backed file mmap-ed onto process cmdline arguments causes denial of service (CVE-2018-1120)

  - kernel: a null pointer dereference in net/dccp/output.c:dccp_write_xmit() leads to a system crash     (CVE-2018-1130)

  - kernel: drivers/block/loop.c mishandles lo_release serialization allowing denial-of-service     (CVE-2018-5344)

  - kernel: IP fragments with random offsets allow a remote denial of service (FragmentSmack) (CVE-2018-5391)

  - kernel: Missing length check of payload in net/sctp/sm_make_chunk.c:_sctp_make_chunk() function allows     denial of service (CVE-2018-5803)

  - kernel: buffer overflow in drivers/net/wireless/ath/wil6210/wmi.c:wmi_set_ie() may lead to memory     corruption (CVE-2018-5848)

  - kernel: Denial of service in resv_map_release function in mm/hugetlb.c (CVE-2018-7740)

  - kernel: Memory leak in the sas_smp_get_phy_events function in drivers/scsi/libsas/sas_expander.c     (CVE-2018-7757)

  - kernel: Integer overflow in drivers/gpu/drm/udl/udl_fb.c:udl_fb_mmap() can allow attackers to execute code     in kernel space (CVE-2018-8781)

  - kernel: Invalid pointer dereference in xfs_ilock_attr_map_shared() when mounting crafted xfs image     allowing denial of service (CVE-2018-10322)

  - kernel: out-of-bound write in ext4_init_block_bitmap function with a crafted ext4 image (CVE-2018-10878)

  - kernel: use-after-free detected in ext4_xattr_set_entry with a crafted file (CVE-2018-10879)

  - kernel: out-of-bound access in ext4_get_group_info() when mounting and operating a crafted ext4 image     (CVE-2018-10881)

  - kernel: stack-out-of-bounds write in jbd2_journal_dirty_metadata function (CVE-2018-10883)

  - kernel: MIDI driver race condition leads to a double-free (CVE-2018-10902)

  - kernel: incorrect memory bounds check in drivers/cdrom/cdrom.c (CVE-2018-10940)

  - kernel: Missing check in fs/inode.c:inode_init_owner() does not clear SGID bit on non-directories for non-     members (CVE-2018-13405)

  - kernel: filesystem corruption due to an unchecked error condition during an xfs attribute change     (CVE-2018-18690)

  - kernel: Improper validation in bnx2x network card driver can allow for denial of service attacks via     crafted packet (CVE-2018-1000026)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Security Fix(es) :

  - A flaw named FragmentSmack was found in the way the     Linux kernel handled reassembly of fragmented IPv4 and     IPv6 packets. A remote attacker could use this flaw to     trigger time and calculation expensive fragment     reassembly algorithm by sending specially crafted     packets which could lead to a CPU saturation and hence a     denial of service on the system. (CVE-2018-5391)

  - kernel: out-of-bounds access in the show_timer function     in kernel/time /posix-timers.c (CVE-2017-18344)

  - kernel: Integer overflow in udl_fb_mmap() can allow     attackers to execute code in kernel space     (CVE-2018-8781)

  - kernel: MIDI driver race condition leads to a     double-free (CVE-2018-10902)

  - kernel: Missing check in inode_init_owner() does not     clear SGID bit on non-directories for non-members     (CVE-2018-13405)

  - kernel: AIO write triggers integer overflow in some     protocols (CVE-2015-8830)

  - kernel: Use-after-free in snd_pcm_info function in ALSA     subsystem potentially leads to privilege escalation     (CVE-2017-0861)

  - kernel: Handling of might_cancel queueing is not     properly pretected against race (CVE-2017-10661)

  - kernel: Salsa20 encryption algorithm does not correctly     handle zero- length inputs allowing local attackers to     cause denial of service (CVE-2017-17805)

  - kernel: Inifinite loop vulnerability in     madvise_willneed() function allows local denial of     service (CVE-2017-18208)

  - kernel: fuse-backed file mmap-ed onto process cmdline     arguments causes denial of service (CVE-2018-1120)

  - kernel: a NULL pointer dereference in dccp_write_xmit()     leads to a system crash (CVE-2018-1130)

  - kernel: drivers/block/loop.c mishandles lo_release     serialization allowing denial of service (CVE-2018-5344)

  - kernel: Missing length check of payload in
    _sctp_make_chunk() function allows denial of service     (CVE-2018-5803)

  - kernel: buffer overflow in     drivers/net/wireless/ath/wil6210/wmi.c:wmi_set_ie() may     lead to memory corruption (CVE-2018-5848)

  - kernel: out-of-bound write in ext4_init_block_bitmap     function with a crafted ext4 image (CVE-2018-10878)

  - kernel: Improper validation in bnx2x network card driver     can allow for denial of service attacks via crafted     packet (CVE-2018-1000026)

  - kernel: Information leak when handling NM entries     containing NUL (CVE-2016-4913)

  - kernel: Mishandling mutex within libsas allowing local     Denial of Service (CVE-2017-18232)

  - kernel: NULL pointer dereference in     ext4_process_freed_data() when mounting crafted ext4     image (CVE-2018-1092)

  - kernel: NULL pointer dereference in     ext4_xattr_inode_hash() causes crash with crafted ext4     image (CVE-2018-1094)

  - kernel: vhost: Information disclosure in     vhost/vhost.c:vhost_new_msg() (CVE-2018-1118)

  - kernel: Denial of service in resv_map_release function     in mm/hugetlb.c (CVE-2018-7740)

  - kernel: Memory leak in the sas_smp_get_phy_events     function in drivers/scsi/libsas/sas_expander.c     (CVE-2018-7757)

  - kernel: Invalid pointer dereference in     xfs_ilock_attr_map_shared() when mounting crafted xfs     image allowing denial of service (CVE-2018-10322)

  - kernel: use-after-free detected in ext4_xattr_set_entry     with a crafted file (CVE-2018-10879)

  - kernel: out-of-bound access in ext4_get_group_info()     when mounting and operating a crafted ext4 image     (CVE-2018-10881)

  - kernel: stack-out-of-bounds write in     jbd2_journal_dirty_metadata function (CVE-2018-10883)

  - kernel: incorrect memory bounds check in     drivers/cdrom/cdrom.c (CVE-2018-10940)

ID	Name	Product	Family	Published	Updated	Severity
109156	Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2018-4071)	Nessus	Oracle Linux Local Security Checks	4/19/2018	9/8/2021	high
109158	OracleVM 3.4 : Unbreakable / etc (OVMSA-2018-0035) (Dirty COW) (Meltdown) (Spectre)	Nessus	OracleVM Local Security Checks	4/19/2018	9/27/2019	high
105147	OracleVM 3.3 : Unbreakable / etc (OVMSA-2017-0173) (BlueBorne) (Stack Clash)	Nessus	OracleVM Local Security Checks	12/11/2017	1/4/2021	high
105247	Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3659)	Nessus	Oracle Linux Local Security Checks	12/14/2017	9/8/2021	high
103365	Debian DSA-3981-1 : linux - security update (BlueBorne) (Stack Clash)	Nessus	Debian Local Security Checks	9/21/2017	1/4/2021	high
118528	RHEL 7 : kernel-rt (RHSA-2018:3096)	Nessus	Red Hat Local Security Checks	10/31/2018	4/27/2024	high
119187	Scientific Linux Security Update : kernel on SL7.x x86_64 (20181030)	Nessus	Scientific Linux Local Security Checks	11/27/2018	5/31/2022	high

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