Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Giorgi Maisuradze, Dan Horea Lutas, Andrei Lutas, Volodymyr Pikhur, Stephan van Schaik, Alyssa Milburn, Sebastian Osterlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, Cristiano Giuffrida, Moritz Lipp, Michael Schwarz, and Daniel Gruss discovered that memory previously stored in microarchitectural fill buffers of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. A local attacker could use this to expose sensitive information.
(CVE-2018-12130)

Brandon Falk, Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Stephan van Schaik, Alyssa Milburn, Sebastian Osterlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, and Cristiano Giuffrida discovered that memory previously stored in microarchitectural load ports of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. A local attacker could use this to expose sensitive information. (CVE-2018-12127)

Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Marina Minkin, Daniel Moghimi, Moritz Lipp, Michael Schwarz, Jo Van Bulck, Daniel Genkin, Daniel Gruss, Berk Sunar, Frank Piessens, and Yuval Yarom discovered that memory previously stored in microarchitectural store buffers of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. A local attacker could use this to expose sensitive information. (CVE-2018-12126)

Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Volodrmyr Pikhur, Moritz Lipp, Michael Schwarz, Daniel Gruss, Stephan van Schaik, Alyssa Milburn, Sebastian Osterlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, and Cristiano Giuffrida discovered that uncacheable memory previously stored in microarchitectural buffers of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. A local attacker could use this to expose sensitive information. (CVE-2019-11091)

It was discovered that the IPv4 generic receive offload (GRO) for UDP implementation in the Linux kernel did not properly handle padded packets. A remote attacker could use this to cause a denial of service (system crash). (CVE-2019-11683)

It was discovered that a race condition existed in the Binder IPC driver for the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
(CVE-2019-1999)

Matteo Croce, Natale Vinto, and Andrea Spagnolo discovered that the cgroups subsystem of the Linux kernel did not properly account for SCTP socket buffers. A local attacker could use this to cause a denial of service (system crash). (CVE-2019-3874)

Alex Williamson discovered that the vfio subsystem of the Linux kernel did not properly limit DMA mappings. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2019-3882)

Marc Orr discovered that the KVM hypervisor implementation in the Linux kernel did not properly restrict APIC MSR register values when nested virtualization is used. An attacker in a guest vm could use this to cause a denial of service (host OS crash). (CVE-2019-3887)

Hugues Anguelkov discovered that the Broadcom Wifi driver in the Linux kernel contained a heap buffer overflow. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-9500)

Hugues Anguelkov discovered that the Broadcom Wifi driver in the Linux kernel did not properly prevent remote firmware events from being processed for USB Wifi devices. A physically proximate attacker could use this to send firmware events to the device. (CVE-2019-9503).

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

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-004335 advisory.

    In binder_alloc_free_page of binder_alloc.c, there is a possible double free due to improper locking. This     could lead to local escalation of privilege in the kernel with no additional execution privileges needed.
    User interaction is not needed for exploitation. Product: Android. Versions: Android kernel. Android ID:
    A-120025196.

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

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

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-000386 advisory.

    In binder_alloc_free_page of binder_alloc.c, there is a possible double free due to improper locking. This     could lead to local escalation of privilege in the kernel with no additional execution privileges needed.
    User interaction is not needed for exploitation. Product: Android. Versions: Android kernel. Android ID:
    A-120025196.

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

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

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - In binder_alloc_free_page of binder_alloc.c, there is a possible double free due to improper locking. This     could lead to local escalation of privilege in the kernel with no additional execution privileges needed.
    User interaction is not needed for exploitation. Product: Android. Versions: Android kernel. Android ID:
    A-120025196. (CVE-2019-1999)

Note that Nessus relies on the presence of the package as reported by the vendor.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-003839 advisory.

    In binder_alloc_free_page of binder_alloc.c, there is a possible double free due to improper locking. This     could lead to local escalation of privilege in the kernel with no additional execution privileges needed.
    User interaction is not needed for exploitation. Product: Android. Versions: Android kernel. Android ID:
    A-120025196.

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

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 a privilege escalation, denial of service or information leaks.

  - CVE-2018-20836     chenxiang reported a race condition in libsas, the     kernel subsystem supporting Serial Attached SCSI (SAS)     devices, which could lead to a use-after-free. It is not     clear how this might be exploited.

  - CVE-2019-1125     It was discovered that most x86 processors could     speculatively skip a conditional SWAPGS instruction used     when entering the kernel from user mode, and/or could     speculatively execute it when it should be skipped. This     is a subtype of Spectre variant 1, which could allow     local users to obtain sensitive information from the     kernel or other processes. It has been mitigated by     using memory barriers to limit speculative execution.
    Systems using an i386 kernel are not affected as the     kernel does not use SWAPGS.

  - CVE-2019-1999     A race condition was discovered in the Android binder     driver, which could lead to a use-after-free. If this     driver is loaded, a local user might be able to use this     for denial-of-service (memory corruption) or for     privilege escalation.

  - CVE-2019-10207     The syzkaller tool found a potential null dereference in     various drivers for UART-attached Bluetooth adapters. A     local user with access to a pty device or other suitable     tty device could use this for denial-of-service     (BUG/oops).

  - CVE-2019-10638     Amit Klein and Benny Pinkas discovered that the     generation of IP packet IDs used a weak hash function,     'jhash'. This could enable tracking individual computers     as they communicate with different remote servers and     from different networks. The 'siphash' function is now     used instead.

  - CVE-2019-12817     It was discovered that on the PowerPC (ppc64el)     architecture, the hash page table (HPT) code did not     correctly handle fork() in a process with memory mapped     at addresses above 512 TiB. This could lead to a     use-after-free in the kernel, or unintended sharing of     memory between user processes. A local user could use     this for privilege escalation. Systems using the radix     MMU, or a custom kernel with a 4 KiB page size, are not     affected.

  - CVE-2019-12984     It was discovered that the NFC protocol implementation     did not properly validate a netlink control message,     potentially leading to a NULL pointer dereference. A     local user on a system with an NFC interface could use     this for denial-of-service (BUG/oops).

  - CVE-2019-13233     Jann Horn discovered a race condition on the x86     architecture, in use of the LDT. This could lead to a     use-after-free. A local user could possibly use this for     denial-of-service.

  - CVE-2019-13631     It was discovered that the gtco driver for USB input     tablets could overrun a stack buffer with constant data     while parsing the device's descriptor. A physically     present user with a specially constructed USB device     could use this to cause a denial-of-service (BUG/oops),     or possibly for privilege escalation.

  - CVE-2019-13648     Praveen Pandey reported that on PowerPC (ppc64el)     systems without Transactional Memory (TM), the kernel     would still attempt to restore TM state passed to the     sigreturn() system call. A local user could use this for     denial-of-service (oops).

  - CVE-2019-14283     The syzkaller tool found a missing bounds check in the     floppy disk driver. A local user with access to a floppy     disk device, with a disk present, could use this to read     kernel memory beyond the I/O buffer, possibly obtaining     sensitive information.

  - CVE-2019-14284     The syzkaller tool found a potential division-by-zero in     the floppy disk driver. A local user with access to a     floppy disk device could use this for denial-of-service     (oops).

ID	Name	Product	Family	Published	Updated	Severity
125138	Ubuntu 19.04 : Linux kernel vulnerabilities (USN-3979-1) (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout)	Nessus	Ubuntu Local Security Checks	5/15/2019	5/22/2024	critical
288831	Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-004335)	Nessus	Unity Linux Local Security Checks	1/16/2026	1/16/2026	high
282148	Unity Linux 20.1070e Security Update: kernel (UTSA-2026-000386)	Nessus	Unity Linux Local Security Checks	1/7/2026	1/7/2026	high
247805	Linux Distros Unpatched Vulnerability : CVE-2019-1999	Nessus	Misc.	8/10/2025	10/28/2025	high
288737	Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-003839)	Nessus	Unity Linux Local Security Checks	1/16/2026	1/17/2026	high
127491	Debian DSA-4495-1 : linux - security update	Nessus	Debian Local Security Checks	8/12/2019	5/7/2024	high

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