The remote Ubuntu 24.04 LTS / 25.04 host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7934-1 advisory.

    It was discovered that improper initialization of CPU cache memory could allow a local attacker with     hypervisor access to overwrite SEV-SNP guest memory resulting in loss of data integrity. (CVE-2024-36331)

    Jean-Claude Graf, Sandro Regge, Ali Hajiabadi, and Kaveh Razavi discovered that the Linux kernel     contained insufficient branch predictor isolation between a guest and a userspace hypervisor for certain     processors. This flaw is known as VMSCAPE. An attacker in a guest VM could possibly use this to expose     sensitive information from the host OS. (CVE-2025-40300)

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to     compromise the system. This update corrects flaws in the following subsystems:

    - ARM64 architecture;

    - PowerPC architecture;

    - S390 architecture;

    - x86 architecture;

    - Cryptographic API;

    - Network block device driver;

    - Character device driver;

    - Clock framework and drivers;

    - Data acquisition framework and drivers;

    - Hardware crypto device drivers;

    - Device frequency scaling framework;

    - DMA engine subsystem;

    - EDAC drivers;

    - GPU drivers;

    - HID subsystem;

    - Hardware monitoring drivers;

    - I2C subsystem;

    - IIO subsystem;

    - IIO ADC drivers;

    - InfiniBand drivers;

    - Input Device core drivers;

    - Multiple devices driver;

    - Media drivers;

    - Network drivers;

    - Mellanox network drivers;

    - PCI subsystem;

    - PHY drivers;

    - Pin controllers subsystem;

    - x86 platform drivers;

    - Power supply drivers;

    - Powercap sysfs driver;

    - Voltage and Current Regulator drivers;

    - S/390 drivers;

    - ASPEED SoC drivers;

    - SPI subsystem;

    - small TFT LCD display modules;

    - Media staging drivers;

    - USB Gadget drivers;

    - vDPA drivers;

    - VFIO drivers;

    - Framebuffer layer;

    - Xen hypervisor drivers;

    - BTRFS file system;

    - Ceph distributed file system;

    - EFI Variable file system;

    - File systems infrastructure;

    - F2FS file system;

    - GFS2 file system;

    - Network file systems library;

    - Network file system (NFS) client;

    - Network file system (NFS) server daemon;

    - NILFS2 file system;

    - NTFS3 file system;

    - Proc file system;

    - SMB network file system;

    - DRM display driver;

    - io_uring subsystem;

    - Internal shared memory driver;

    - padata parallel execution mechanism;

    - Networking subsytem;

    - Bluetooth subsystem;

    - Netfilter;

    - UDP network protocol;

    - Tracing infrastructure;

    - BPF subsystem;

    - Perf events;

    - Padata parallel execution mechanism;

    - Codetag library;

    - KASAN memory debugging framework;

    - Memory management;

    - 802.1Q VLAN protocol;

    - Appletalk network protocol;

    - Asynchronous Transfer Mode (ATM) subsystem;

    - Networking core;

    - IPv4 networking;

    - IPv6 networking;

    - MAC80211 subsystem;

    - Multipath TCP;

    - Netlink;

    - RxRPC session sockets;

    - Network traffic control;

    - SMC sockets;

    - Sun RPC protocol;

    - TIPC protocol;

    - TLS protocol;

    - VMware vSockets driver;

    - Wireless networking;

    - XFRM subsystem;

    - ADI SoundPort AD1816A based soundcard drivers;

    - MediaTek ASoC drivers;

    - SOF drivers;

    - USB sound devices;

    - KVM subsystem; (CVE-2025-38335, CVE-2025-38349, CVE-2025-38351, CVE-2025-38437, CVE-2025-38438,     CVE-2025-38439, CVE-2025-38440, CVE-2025-38441, CVE-2025-38443, CVE-2025-38444, CVE-2025-38445,     CVE-2025-38446, CVE-2025-38448, CVE-2025-38449, CVE-2025-38450, CVE-2025-38451, CVE-2025-38452,     CVE-2025-38453, CVE-2025-38454, CVE-2025-38455, CVE-2025-38456, CVE-2025-38457, CVE-2025-38458,     CVE-2025-38459, CVE-2025-38460, CVE-2025-38461, CVE-2025-38462, CVE-2025-38463, CVE-2025-38464,     CVE-2025-38465, CVE-2025-38466, CVE-2025-38467, CVE-2025-38468, CVE-2025-38469, CVE-2025-38470,     CVE-2025-38471, CVE-2025-38472, CVE-2025-38473, CVE-2025-38474, CVE-2025-38475, CVE-2025-38476,     CVE-2025-38478, CVE-2025-38480, CVE-2025-38481, CVE-2025-38482, CVE-2025-38483, CVE-2025-38484,     CVE-2025-38485, CVE-2025-38487, CVE-2025-38488, CVE-2025-38489, CVE-2025-38490, CVE-2025-38491,     CVE-2025-38492, CVE-2025-38493, CVE-2025-38494, CVE-2025-38495, CVE-2025-38496, CVE-2025-38497,     CVE-2025-38501, CVE-2025-38503, CVE-2025-38505, CVE-2025-38506, CVE-2025-38507, CVE-2025-38508,     CVE-2025-38509, CVE-2025-38510, CVE-2025-38511, CVE-2025-38512, CVE-2025-38513, CVE-2025-38514,     CVE-2025-38515, CVE-2025-38516, CVE-2025-38517, CVE-2025-38520, CVE-2025-38521, CVE-2025-38524,     CVE-2025-38525, CVE-2025-38526, CVE-2025-38527, CVE-2025-38528, CVE-2025-38529, CVE-2025-38530,     CVE-2025-38531, CVE-2025-38532, CVE-2025-38533, CVE-2025-38534, CVE-2025-38535, CVE-2025-38537,     CVE-2025-38538, CVE-2025-38539, CVE-2025-38540, CVE-2025-38542, CVE-2025-38543, CVE-2025-38544,     CVE-2025-38545, CVE-2025-38546, CVE-2025-38547, CVE-2025-38548, CVE-2025-38549, CVE-2025-38550,     CVE-2025-38551, CVE-2025-38552, CVE-2025-38553, CVE-2025-38555, CVE-2025-38556, CVE-2025-38557,     CVE-2025-38558, CVE-2025-38559, CVE-2025-38560, CVE-2025-38561, CVE-2025-38562, CVE-2025-38563,     CVE-2025-38565, CVE-2025-38566, CVE-2025-38567, CVE-2025-38568, CVE-2025-38569, CVE-2025-38570,     CVE-2025-38571, CVE-2025-38572, CVE-2025-38573, CVE-2025-38574, CVE-2025-38576, CVE-2025-38577,     CVE-2025-38578, CVE-2025-38579, CVE-2025-38581, CVE-2025-38582, CVE-2025-38583, CVE-2025-38584,     CVE-2025-38585, CVE-2025-38586, CVE-2025-38587, CVE-2025-38588, CVE-2025-38589, CVE-2025-38590,     CVE-2025-38593, CVE-2025-38595, CVE-2025-38601, CVE-2025-38602, CVE-2025-38604, CVE-2025-38605,     CVE-2025-38606, CVE-2025-38608, CVE-2025-38609, CVE-2025-38610, CVE-2025-38612, CVE-2025-38615,     CVE-2025-38616, CVE-2025-38619, CVE-2025-38622, CVE-2025-38623, CVE-2025-38624, CVE-2025-38625,     CVE-2025-38626, CVE-2025-38628, CVE-2025-38629, CVE-2025-38630, CVE-2025-38631, CVE-2025-38632,     CVE-2025-38634, CVE-2025-38635, CVE-2025-38639, CVE-2025-38640, CVE-2025-38642, CVE-2025-38643,     CVE-2025-38644, CVE-2025-38645, CVE-2025-38646, CVE-2025-38648, CVE-2025-38649, CVE-2025-38650,     CVE-2025-38652, CVE-2025-38653, CVE-2025-38654, CVE-2025-38655, CVE-2025-38659, CVE-2025-38660,     CVE-2025-38662, CVE-2025-38663, CVE-2025-38664, CVE-2025-38665, CVE-2025-38666, CVE-2025-38668,     CVE-2025-38670, CVE-2025-38671, CVE-2025-38675, CVE-2025-38678, CVE-2025-39725, CVE-2025-39726,     CVE-2025-39727, CVE-2025-39730, CVE-2025-39731, CVE-2025-39732, CVE-2025-39734, CVE-2025-39809,     CVE-2025-39818, CVE-2025-39946, CVE-2025-39964, CVE-2025-39993, CVE-2025-40018, CVE-2025-40157)

Tenable has extracted the preceding description block directly from the Ubuntu 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 Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007387 advisory.

    In the Linux kernel, the following vulnerability has been resolved:

    usb: gadget : fix use-after-free in composite_dev_cleanup()

    1. In func configfs_composite_bind() -> composite_os_desc_req_prepare():
    if kmalloc fails, the pointer cdev->os_desc_req will be freed but not     set to NULL. Then it will return a failure to the upper-level function.
    2. in func configfs_composite_bind() -> composite_dev_cleanup():
    it will checks whether cdev->os_desc_req is NULL. If it is not NULL, it     will attempt to use it.This will lead to a use-after-free issue.

    BUG: KASAN: use-after-free in composite_dev_cleanup+0xf4/0x2c0     Read of size 8 at addr 0000004827837a00 by task init/1

    CPU: 10 PID: 1 Comm: init Tainted: G           O      5.10.97-oh #1      kasan_report+0x188/0x1cc
     __asan_load8+0xb4/0xbc      composite_dev_cleanup+0xf4/0x2c0      configfs_composite_bind+0x210/0x7ac      udc_bind_to_driver+0xb4/0x1ec      usb_gadget_probe_driver+0xec/0x21c      gadget_dev_desc_UDC_store+0x264/0x27c

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.

  - usb: gadget : fix use-after-free in composite_dev_cleanup() 1. In func configfs_composite_bind() ->     composite_os_desc_req_prepare(): if kmalloc fails, the pointer cdev->os_desc_req will be freed but not set     to NULL. Then it will return a failure to the upper-level function. 2. in func configfs_composite_bind()
    -> composite_dev_cleanup(): it will checks whether cdev->os_desc_req is NULL. If it is not NULL, it will     attempt to use it.This will lead to a use-after-free issue. BUG: KASAN: use-after-free in     composite_dev_cleanup+0xf4/0x2c0 Read of size 8 at addr 0000004827837a00 by task init/1 CPU: 10 PID: 1     Comm: init Tainted: G O 5.10.97-oh #1 kasan_report+0x188/0x1cc __asan_load8+0xb4/0xbc     composite_dev_cleanup+0xf4/0x2c0 configfs_composite_bind+0x210/0x7ac udc_bind_to_driver+0xb4/0x1ec     usb_gadget_probe_driver+0xec/0x21c gadget_dev_desc_UDC_store+0x264/0x27c (CVE-2025-38555)

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

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
278749	Ubuntu 24.04 LTS / 25.04 : Linux kernel (Azure) vulnerabilities (USN-7934-1)	Nessus	Ubuntu Local Security Checks	2025/12/16	2026/9/18	high
307322	Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007387)	Nessus	Unity Linux Local Security Checks	2026/4/17	2026/4/21	high
260127	Linux Distros Unpatched Vulnerability : CVE-2025-38555	Nessus	Misc.	2025/8/31	2026/11/11	high

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