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 version of AOS installed on the remote host is prior to 5.17.1. It is, therefore, affected by multiple vulnerabilities as referenced in the NXSA-AOS-5.17.1 advisory.

  - When using the Apache JServ Protocol (AJP), care must be taken when trusting incoming connections to     Apache Tomcat. Tomcat treats AJP connections as having higher trust than, for example, a similar HTTP     connection. If such connections are available to an attacker, they can be exploited in ways that may be     surprising. In Apache Tomcat 9.0.0.M1 to 9.0.0.30, 8.5.0 to 8.5.50 and 7.0.0 to 7.0.99, Tomcat shipped     with an AJP Connector enabled by default that listened on all configured IP addresses. It was expected     (and recommended in the security guide) that this Connector would be disabled if not required. This     vulnerability report identified a mechanism that allowed: - returning arbitrary files from anywhere in the     web application - processing any file in the web application as a JSP Further, if the web application     allowed file upload and stored those files within the web application (or the attacker was able to control     the content of the web application by some other means) then this, along with the ability to process a     file as a JSP, made remote code execution possible. It is important to note that mitigation is only     required if an AJP port is accessible to untrusted users. Users wishing to take a defence-in-depth     approach and block the vector that permits returning arbitrary files and execution as JSP may upgrade to     Apache Tomcat 9.0.31, 8.5.51 or 7.0.100 or later. A number of changes were made to the default AJP     Connector configuration in 9.0.31 to harden the default configuration. It is likely that users upgrading     to 9.0.31, 8.5.51 or 7.0.100 or later will need to make small changes to their configurations.
    (CVE-2020-1938)

  - rtl_p2p_noa_ie in drivers/net/wireless/realtek/rtlwifi/ps.c in the Linux kernel through 5.3.6 lacks a     certain upper-bound check, leading to a buffer overflow. (CVE-2019-17666)

  - The Linux kernel before 5.1-rc5 allows page->_refcount reference count overflow, with resultant use-after-     free issues, if about 140 GiB of RAM exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c,     include/linux/mm.h, include/linux/pipe_fs_i.h, kernel/trace/trace.c, mm/gup.c, and mm/hugetlb.c. It can     occur with FUSE requests. (CVE-2019-11487)

  - A flaw was found in the fix for CVE-2019-11135, in the Linux upstream kernel versions before 5.5 where,     the way Intel CPUs handle speculative execution of instructions when a TSX Asynchronous Abort (TAA) error     occurs. When a guest is running on a host CPU affected by the TAA flaw (TAA_NO=0), but is not affected by     the MDS issue (MDS_NO=1), the guest was to clear the affected buffers by using a VERW instruction     mechanism. But when the MDS_NO=1 bit was exported to the guests, the guests did not use the VERW mechanism     to clear the affected buffers. This issue affects guests running on Cascade Lake CPUs and requires that     host has 'TSX' enabled. Confidentiality of data is the highest threat associated with this vulnerability.
    (CVE-2019-19338)

  - The xz_decomp function in xzlib.c in libxml2 2.9.1 does not properly detect compression errors, which     allows context-dependent attackers to cause a denial of service (process hang) via crafted XML data.
    (CVE-2015-8035)

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

The version of kernel installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2018-20169 advisory.

  - An issue was discovered in the Linux kernel before 4.19.9. The USB subsystem mishandles size checks during     the reading of an extra descriptor, related to __usb_get_extra_descriptor in drivers/usb/core/usb.c.
    (CVE-2018-20169)

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

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2020-1016 advisory.

    - [mm] mm: prevent get_user_pages() from overflowing page refcount (Aristeu Rozanski) [1705005]     {CVE-2019-11487}
    - [mm] mm/hugetlb.c: __get_user_pages ignores certain follow_hugetlb_page errors (Aristeu Rozanski)     [1705005] {CVE-2019-11487}
    - [wireless] rtlwifi: Fix potential overflow on P2P code (Josef Oskera) [1775236] {CVE-2019-17666}
    - [x86] kvm: vmx: implement MSR_IA32_TSX_CTRL disable RTM functionality (Paolo Bonzini) [1779768]     {CVE-2019-19338}
    - [x86] kvm: x86: Mark expected switch fall-throughs (Paolo Bonzini) [1779768] {CVE-2019-19338}
    - [x86] kvm: x86: implement MSR_IA32_TSX_CTRL effect on CPUID (Paolo Bonzini) [1779768] {CVE-2019-19338}
    - [x86] kvm: x86: do not modify masked bits of shared MSRs (Paolo Bonzini) [1779768] {CVE-2019-19338}
    - [x86] kvm: x86: fix presentation of TSX feature in ARCH_CAPABILITIES (Paolo Bonzini) [1779768]     {CVE-2019-19338}
    - [x86] kvm/x86: Export MDS_NO=0 to guests when TSX is enabled (Paolo Bonzini) [1779768] {CVE-2019-19338}
    - [wireless] mwifiex: Fix heap overflow in mmwifiex_process_tdls_action_frame() (Stanislaw Gruszka)     [1776157] {CVE-2019-14901}
    - [x86] x86/speculation: Remove unneeded STIBP code (Waiman Long) [1766540] {CVE-2019-11135}
    - [x86] x86/speculation: Fix redundant MDS mitigation message (Waiman Long) [1766540] {CVE-2019-11135}
    - [documentation] x86/speculation: Fix incorrect MDS/TAA mitigation status (Waiman Long) [1766540]     {CVE-2019-11135}
    - [x86] x86/speculation/taa: Fix printing of TAA_MSG_SMT on IBRS_ALL CPUs (Waiman Long) [1766540]     {CVE-2019-11135}
    - [x86] x86/tsx: Add config options to set tsx=on|off|auto (Waiman Long) [1766540] {CVE-2019-11135}
    - [documentation] x86/speculation/taa: Add documentation for TSX Async Abort (Waiman Long) [1766540]     {CVE-2019-11135}
    - [x86] x86/tsx: Add 'auto' option to the tsx= cmdline parameter (Waiman Long) [1766540] {CVE-2019-11135}
    - [base] x86/speculation/taa: Add sysfs reporting for TSX Async Abort (Waiman Long) [1766540]     {CVE-2019-11135}
    - [x86] x86/speculation/taa: Add mitigation for TSX Async Abort (Waiman Long) [1766540] {CVE-2019-11135}
    - [x86] x86/cpu: Add a 'tsx=' cmdline option with TSX disabled by default (Waiman Long) [1766540]     {CVE-2019-11135}
    - [x86] x86/cpu: Add a helper function x86_read_arch_cap_msr() (Waiman Long) [1766540] {CVE-2019-11135}
    - [x86] x86/msr: Add the IA32_TSX_CTRL MSR (Waiman Long) [1766540] {CVE-2019-11135}
    - [documentation] documentation: Add ITLB_MULTIHIT documentation (Paolo Bonzini) [1690343]     {CVE-2018-12207}
    - [x86] kvm: x86: mmu: Recovery of shattered NX large pages (Paolo Bonzini) [1690343] {CVE-2018-12207}
    - [virt] kvm: Add helper function for creating VM worker threads (Paolo Bonzini) [1690343]     {CVE-2018-12207}
    - [x86] kvm: mmu: ITLB_MULTIHIT mitigation (Paolo Bonzini) [1690343] {CVE-2018-12207}
    - [kernel] cpu/speculation: Uninline and export CPU mitigations helpers (Paolo Bonzini) [1690343]     {CVE-2018-12207}
    - [x86] cpu: Add Tremont to the cpu vulnerability whitelist (Paolo Bonzini) [1690343] {CVE-2018-12207}
    - [x86] Add ITLB_MULTIHIT bug infrastructure (Paolo Bonzini) [1690343] {CVE-2018-12207}
    - [x86] kvm: vmx, svm: always run with EFER.NXE=1 when shadow paging is active (Paolo Bonzini) [1690343]     {CVE-2018-12207}
    - [x86] kvm: x86: add tracepoints around __direct_map and FNAME(fetch) (Paolo Bonzini) [1690343]     {CVE-2018-12207}
    - [x86] kvm: x86: change kvm_mmu_page_get_gfn BUG_ON to WARN_ON (Paolo Bonzini) [1690343] {CVE-2018-12207}
    - [x86] kvm: x86: remove now unneeded hugepage gfn adjustment (Paolo Bonzini) [1690343] {CVE-2018-12207}
    - [x86] kvm: x86: make FNAME(fetch) and __direct_map more similar (Paolo Bonzini) [1690343]     {CVE-2018-12207}
    - [x86] kvm: mmu: Do not release the page inside mmu_set_spte() (Paolo Bonzini) [1690343] {CVE-2018-12207}
    - [x86] kvm: x86: mmu: Remove unused parameter of __direct_map() (Paolo Bonzini) [1690343]     {CVE-2018-12207}
    - [virt] kvm: Convert kvm_lock to a mutex (Paolo Bonzini) [1690343] {CVE-2018-12207}
    - [x86] kvm: mmu: drop vcpu param in gpte_access (Paolo Bonzini) [1690343] {CVE-2018-12207}
    - [virt] kvm: x86, powerpc: do not allow clearing largepages debugfs entry (Paolo Bonzini) [1690343]     {CVE-2018-12207}
    - [media] cx24116: fix a buffer overflow when checking userspace params (Jarod Wilson) [1737279]     {CVE-2015-9289}
    - [drm] drm/i915/cmdparser: Fix jump whitelist clearing (Dave Airlie) [1756883] {CVE-2019-0155}
    - [drm] drm/i915: Lower RM timeout to avoid DSI hard hangs (Dave Airlie) [1756816] {CVE-2019-0154}
    - [drm] drm/i915/gen8+: Add RC6 CTX corruption WA (Dave Airlie) [1756816] {CVE-2019-0154}
    - [drm] drm/i915/cmdparser: Ignore Length operands during command matching (Dave Airlie) [1756883]     {CVE-2019-0155}
    - [drm] drm/i915/cmdparser: Add support for backward jumps (Dave Airlie) [1756883] {CVE-2019-0155}
    - [drm] drm/i915/cmdparser: Use explicit goto for error paths (Dave Airlie) [1756883] {CVE-2019-0155}
    - [drm] drm/i915: Add gen9 BCS cmdparsing (Dave Airlie) [1756883] {CVE-2019-0155}
    - [drm] drm/i915: Allow parsing of unsized batches (Dave Airlie) [1756883] {CVE-2019-0155}
    - [drm] drm/i915: Support ro ppgtt mapped cmdparser shadow buffers (Dave Airlie) [1756883] {CVE-2019-0155}
    - [drm] drm/i915: Add support for mandatory cmdparsing (Dave Airlie) [1756883] {CVE-2019-0155}
    - [drm] drm/i915: Remove Master tables from cmdparser (Dave Airlie) [1756883] {CVE-2019-0155}
    - [drm] drm/i915: Disable Secure Batches for gen6+ (Dave Airlie) [1756883] {CVE-2019-0155}
    - [drm] drm/i915: Rename gen7 cmdparser tables (Dave Airlie) [1756883] {CVE-2019-0155}
    - [net] sysfs: Fix mem leak in netdev_register_kobject (Stefano Brivio) [1752690] {CVE-2019-15916}
    - [kernel] perf/core: Fix perf_event_open() vs. execve() race (Jiri Olsa) [1701620] {CVE-2019-3901}

Tenable has extracted the preceding description block directly from the Oracle 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.

ID	Name	Product	Family	Published	Updated	Severity
130547	RHEL 8 : kernel (RHSA-2019:3517)	Nessus	Red Hat Local Security Checks	11/6/2019	4/15/2025	critical
164612	Nutanix AOS : Multiple Vulnerabilities (NXSA-AOS-5.17.1)	Nessus	Misc.	9/1/2022	9/1/2025	critical
201804	CBL Mariner 2.0 Security Update: kernel (CVE-2018-20169)	Nessus	MarinerOS Local Security Checks	7/3/2024	7/3/2024	medium
180720	Oracle Linux 7 : kernel (ELSA-2020-1016)	Nessus	Oracle Linux Local Security Checks	9/7/2023	2/9/2026	critical

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