According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - An elevation of privilege vulnerability in the kernel     scsi driver. Product: Android. Versions: Android     kernel. Android ID A-65023233.(CVE-2017-13168)

  - Non-optimized code for key handling of shared futexes     was found in the Linux kernel in the form of unbounded     contention time due to the page lock for real-time     users. Before the fix, the page lock was an     unnecessarily heavy lock for the futex path that     protected too much. After the fix, the page lock is     only required in a specific corner case.(CVE-2018-9422)

  - A flaw in the load_elf_binary() function in the Linux     kernel allows a local attacker to leak the base address     of .text and stack sections for setuid binaries and     bypass ASLR because install_exec_creds() is called too     late in this function.(CVE-2019-11190)

  - A flaw was found in the Linux kernel ext4 filesystem.
    An out-of-bound access is possible in the     ext4_ext_drop_refs() function when operating on a     crafted ext4 filesystem image.(CVE-2018-10877)

  - A vulnerability was found in polkit. When     authentication is performed by a non-root user to     perform an administrative task, the authentication is     temporarily cached in such a way that a local attacker     could impersonate the authorized process, thus gaining     access to elevated privileges.(CVE-2019-6133)

  - A flaw was found in the Linux kernel in the function     hso_probe() which reads if_num value from the USB     device (as an u8) and uses it without a length check to     index an array, resulting in an OOB memory read in     hso_probe() or hso_get_config_data(). An attacker with     a forged USB device and physical access to a system     (needed to connect such a device) can cause a system     crash and a denial of service.(CVE-2018-19985)

  - A flaw was found in the Linux kernel's implementation     of logical link control and adaptation protocol     (L2CAP), part of the Bluetooth stack in the     l2cap_parse_conf_rsp and l2cap_parse_conf_req     functions. An attacker with physical access within the     range of standard Bluetooth transmission can create a     specially crafted packet. The response to this     specially crafted packet can contain part of the kernel     stack which can be used in a further     attack.(CVE-2019-3460)

  - A flaw was found in the Linux kernels implementation of     Logical link control and adaptation protocol (L2CAP),     part of the Bluetooth stack. An attacker with physical     access within the range of standard Bluetooth     transmission can create a specially crafted packet. The     response to this specially crafted packet can contain     part of the kernel stack which can be used in a further     attack.(CVE-2019-3459)

  - A flaw was found in the Linux kernel's NFS41+     subsystem. NFS41+ shares mounted in different network     namespaces at the same time can make bc_svc_process()     use wrong back-channel IDs and cause a use-after-free     vulnerability. Thus a malicious container user can     cause a host kernel memory corruption and a system     panic. Due to the nature of the flaw, privilege     escalation cannot be fully ruled out.(CVE-2018-16884)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2019:3517 advisory.

    The kernel packages contain the Linux kernel, the core of any Linux operating system.

    Security Fix(es):

    * kernel: nfs: use-after-free in svc_process_common() (CVE-2018-16884)

    * Kernel: vhost_net: infinite loop while receiving packets leads to DoS (CVE-2019-3900)

    * Kernel: page cache side channel attacks (CVE-2019-5489)

    * hardware: bluetooth: BR/EDR encryption key negotiation attacks (KNOB) (CVE-2019-9506)

    * kernel: Heap overflow in mwifiex_uap_parse_tail_ies function in     drivers/net/wireless/marvell/mwifiex/ie.c (CVE-2019-10126)

    * Kernel: KVM: OOB memory access via mmio ring buffer (CVE-2019-14821)

    * kernel: Information Disclosure in crypto_report_one in crypto/crypto_user.c (CVE-2018-19854)

    * kernel: usb: missing size check in the __usb_get_extra_descriptor() leading to DoS (CVE-2018-20169)

    * kernel: Heap address information leak while using L2CAP_GET_CONF_OPT (CVE-2019-3459)

    * kernel: Heap address information leak while using L2CAP_PARSE_CONF_RSP (CVE-2019-3460)

    * kernel: SCTP socket buffer memory leak leading to denial of service (CVE-2019-3874)

    * kernel: denial of service vector through vfio DMA mappings (CVE-2019-3882)

    * kernel: null-pointer dereference in hci_uart_set_flow_control (CVE-2019-10207)

    * kernel: fix race condition between mmget_not_zero()/get_task_mm() and core dumping (CVE-2019-11599)

    * kernel: fs/ext4/extents.c leads to information disclosure (CVE-2019-11833)

    * kernel: sensitive information disclosure from kernel stack memory via HIDPCONNADD command     (CVE-2019-11884)

    * kernel: use-after-free in arch/x86/lib/insn-eval.c (CVE-2019-13233)

    * kernel: memory leak in register_queue_kobjects() in net/core/net-sysfs.c leads to denial of service     (CVE-2019-15916)

    * kernel: Linux stack ASLR implementation Integer overflow (CVE-2015-1593)

    * kernel: oob memory read in hso_probe in drivers/net/usb/hso.c (CVE-2018-19985)

    * Kernel: KVM: leak of uninitialized stack contents to guest (CVE-2019-7222)

    * Kernel: net: weak IP ID generation leads to remote device tracking (CVE-2019-10638)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.1 Release Notes     linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues 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-2020-0044 for details.

The linux update issued as DLA-1731-1 caused a regression in the vmxnet3 (VMware virtual network adapter) driver. This update corrects that regression, and an earlier regression in the CIFS network filesystem implementation introduced in DLA-1422-1. For reference the original advisory text follows.

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

CVE-2016-10741

A race condition was discovered in XFS that would result in a crash (BUG). A local user permitted to write to an XFS volume could use this for denial of service.

CVE-2017-5753

Further instances of code that was vulnerable to Spectre variant 1 (bounds-check bypass) have been mitigated.

CVE-2017-13305

A memory over-read was discovered in the keys subsystem's encrypted key type. A local user could use this for denial of service or possibly to read sensitive information.

CVE-2018-3639 (SSB)

Multiple researchers have discovered that Speculative Store Bypass (SSB), a feature implemented in many processors, could be used to read sensitive information from another context. In particular, code in a software sandbox may be able to read sensitive information from outside the sandbox. This issue is also known as Spectre variant 4.

This update fixes bugs in the mitigations for SSB for AMD processors.

CVE-2018-5848

The wil6210 wifi driver did not properly validate lengths in scan and connection requests, leading to a possible buffer overflow. On systems using this driver, a local user with the CAP_NET_ADMIN capability could use this for denial of service (memory corruption or crash) or potentially for privilege escalation.

CVE-2018-5953

The swiotlb subsystem printed kernel memory addresses to the system log, which could help a local attacker to exploit other vulnerabilities.

CVE-2018-12896, CVE-2018-13053

Team OWL337 reported possible integer overflows in the POSIX timer implementation. These might have some security impact.

CVE-2018-16862

Vasily Averin and Pavel Tikhomirov from Virtuozzo Kernel Team discovered that the cleancache memory management feature did not invalidate cached data for deleted files. On Xen guests using the tmem driver, local users could potentially read data from other users' deleted files if they were able to create new files on the same volume.

CVE-2018-16884

A flaw was found in the NFS 4.1 client implementation. Mounting NFS shares in multiple network namespaces at the same time could lead to a user-after-free. Local users might be able to use this for denial of service (memory corruption or crash) or possibly for privilege escalation.

This can be mitigated by disabling unprivileged users from creating user namespaces, which is the default in Debian.

CVE-2018-17972

Jann Horn reported that the /proc/*/stack files in procfs leaked sensitive data from the kernel. These files are now only readable by users with the CAP_SYS_ADMIN capability (usually only root)

CVE-2018-18281

Jann Horn reported a race condition in the virtual memory manager that can result in a process briefly having access to memory after it is freed and reallocated. A local user permitted to create containers could possibly exploit this for denial of service (memory corruption) or for privilege escalation.

CVE-2018-18690

Kanda Motohiro reported that XFS did not correctly handle some xattr (extended attribute) writes that require changing the disk format of the xattr. A user with access to an XFS volume could use this for denial of service.

CVE-2018-18710

It was discovered that the cdrom driver does not correctly validate the parameter to the CDROM_SELECT_DISC ioctl. A user with access to a cdrom device could use this to read sensitive information from the kernel or to cause a denial of service (crash).

CVE-2018-19824

Hui Peng and Mathias Payer discovered a use-after-free bug in the USB audio driver. A physically present attacker able to attach a specially designed USB device could use this for privilege escalation.

CVE-2018-19985

Hui Peng and Mathias Payer discovered a missing bounds check in the hso USB serial driver. A physically present user able to attach a specially designed USB device could use this to read sensitive information from the kernel or to cause a denial of service (crash).

CVE-2018-20169

Hui Peng and Mathias Payer discovered missing bounds checks in the USB core. A physically present attacker able to attach a specially designed USB device could use this to cause a denial of service (crash) or possibly for privilege escalation.

CVE-2018-20511

InfoSect reported an information leak in the AppleTalk IP/DDP implemntation. A local user with CAP_NET_ADMIN capability could use this to read sensitive information from the kernel.

CVE-2019-3701

Muyu Yu and Marcus Meissner reported that the CAN gateway implementation allowed the frame length to be modified, typically resulting in out-of-bounds memory-mapped I/O writes. On a system with CAN devices present, a local user with CAP_NET_ADMIN capability in the initial net namespace could use this to cause a crash (oops) or other hardware-dependent impact.

CVE-2019-3819

A potential infinite loop was discovered in the HID debugfs interface exposed under /sys/kernel/debug/hid. A user with access to these files could use this for denial of service.

This interface is only accessible to root by default, which fully mitigates the issue.

CVE-2019-6974

Jann Horn reported a use-after-free bug in KVM. A local user with access to /dev/kvm could use this to cause a denial of service (memory corruption or crash) or possibly for privilege escalation.

CVE-2019-7221

Jim Mattson and Felix Wilhelm reported a user-after-free bug in KVM's nested VMX implementation. On systems with Intel CPUs, a local user with access to /dev/kvm could use this to cause a denial of service (memory corruption or crash) or possibly for privilege escalation.

Nested VMX is disabled by default, which fully mitigates the issue.

CVE-2019-7222

Felix Wilhelm reported an information leak in KVM for x86. A local user with access to /dev/kvm could use this to read sensitive information from the kernel.

CVE-2019-9213

Jann Horn reported that privileged tasks could cause stack segments, including those in other processes, to grow downward to address 0. On systems lacking SMAP (x86) or PAN (ARM), this exacerbated other vulnerabilities: a NULL pointer dereference could be exploited for privilege escalation rather than only for denial of service.

For Debian 8 'Jessie', these problems have been fixed in version 3.16.64-1.

We recommend that you upgrade your linux packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Published	Updated	Severity
124431	EulerOS 2.0 SP5 : kernel (EulerOS-SA-2019-1304)	Nessus	Huawei Local Security Checks	5/1/2019	5/30/2024	high
130547	RHEL 8 : kernel (RHSA-2019:3517)	Nessus	Red Hat Local Security Checks	11/6/2019	4/15/2025	critical
141374	OracleVM 3.4 : Unbreakable / etc (OVMSA-2020-0044)	Nessus	OracleVM Local Security Checks	10/12/2020	2/15/2024	critical
123420	Debian DLA-1731-2 : linux regression update (Spectre)	Nessus	Debian Local Security Checks	3/28/2019	6/7/2024	high

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