In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Fix uninitialized memcache pointer in user_mem_abort() Commit fce886a60207 ("KVM: arm64: Plumb the pKVM MMU in KVM") made the initialization of the local memcache variable in user_mem_abort() conditional, leaving a codepath where it is used uninitialized via kvm_pgtable_stage2_map(). This can fail on any path that requires a stage-2 allocation without transition via a permission fault or dirty logging. Fix this by making sure that memcache is always valid.

The remote Ubuntu 25.04 host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7721-1 advisory.

    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;

    - PA-RISC architecture;

    - PowerPC architecture;

    - RISC-V architecture;

    - S390 architecture;

    - x86 architecture;

    - Compute Acceleration Framework;

    - Ublk userspace block driver;

    - Bluetooth drivers;

    - Buffer Sharing and Synchronization framework;

    - DMA engine subsystem;

    - ARM SCMI message protocol;

    - GPU drivers;

    - HID subsystem;

    - IIO ADC drivers;

    - IIO subsystem;

    - InfiniBand drivers;

    - Input Device core drivers;

    - IOMMU subsystem;

    - IRQ chip drivers;

    - Multiple devices driver;

    - Network drivers;

    - Mellanox network drivers;

    - PCI subsystem;

    - PHY drivers;

    - PTP clock framework;

    - Voltage and Current Regulator drivers;

    - SPI subsystem;

    - VideoCore services drivers;

    - USB Type-C Connector System Software Interface driver;

    - Xen hypervisor drivers;

    - BTRFS file system;

    - EROFS file system;

    - Network file system (NFS) client;

    - File systems infrastructure;

    - SMB network file system;

    - Network traffic control;

    - eXpress Data Path;

    - Universal MIDI packet (UMP) support module;

    - io_uring subsystem;

    - Kernel command line parsing driver;

    - Scheduler infrastructure;

    - Tracing infrastructure;

    - Memory management;

    - Networking core;

    - IPv4 networking;

    - IPv6 networking;

    - MAC80211 subsystem;

    - Management Component Transport Protocol (MCTP);

    - Netfilter;

    - Open vSwitch;

    - TLS protocol;

    - Wireless networking;

    - AMD SoC Alsa drivers;

    - SoC Audio generic drivers;

    - SOF drivers; (CVE-2025-37959, CVE-2025-37927, CVE-2025-37891, CVE-2025-37906, CVE-2025-37962,     CVE-2025-37972, CVE-2025-37919, CVE-2025-37958, CVE-2025-37929, CVE-2025-37969, CVE-2025-37949,     CVE-2025-37916, CVE-2025-38027, CVE-2025-37968, CVE-2025-37931, CVE-2025-37923, CVE-2025-37918,     CVE-2025-37998, CVE-2025-37907, CVE-2025-37894, CVE-2025-38028, CVE-2025-37915, CVE-2025-38008,     CVE-2025-37946, CVE-2025-38020, CVE-2025-37926, CVE-2025-37950, CVE-2025-38216, CVE-2025-37973,     CVE-2025-38014, CVE-2025-37963, CVE-2025-38009, CVE-2025-38010, CVE-2025-37971, CVE-2025-38012,     CVE-2025-38094, CVE-2025-37955, CVE-2025-37904, CVE-2025-38095, CVE-2025-37951, CVE-2025-37964,     CVE-2025-37901, CVE-2025-37956, CVE-2025-38016, CVE-2025-37960, CVE-2025-37898, CVE-2025-37992,     CVE-2025-38006, CVE-2025-37993, CVE-2025-37921, CVE-2025-38007, CVE-2025-37930, CVE-2025-37895,     CVE-2025-37897, CVE-2025-37933, CVE-2025-37899, CVE-2025-37967, CVE-2025-38019, CVE-2025-37966,     CVE-2025-37961, CVE-2025-37934, CVE-2025-37952, CVE-2025-37994, CVE-2025-37914, CVE-2025-38083,     CVE-2025-37970, CVE-2025-37965, CVE-2025-38025, CVE-2025-38023, CVE-2025-38015, CVE-2025-37911,     CVE-2025-38056, CVE-2025-37995, CVE-2025-37991, CVE-2025-37920, CVE-2025-38011, CVE-2025-37910,     CVE-2025-37924, CVE-2025-37996, CVE-2025-37948, CVE-2025-37922, CVE-2025-37947, CVE-2025-37912,     CVE-2025-37990, CVE-2025-37909, CVE-2025-38021, CVE-2025-38022, CVE-2025-37908, CVE-2025-37900,     CVE-2025-37999, CVE-2025-37905, CVE-2025-37954, CVE-2025-37974, CVE-2025-38005, CVE-2025-37913,     CVE-2025-37903, CVE-2025-37896, CVE-2025-38002, CVE-2025-37935, CVE-2025-38018, CVE-2025-37936,     CVE-2025-38013, CVE-2025-37957, CVE-2025-37928, CVE-2025-37917, CVE-2025-38024)

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 remote Ubuntu 24.04 LTS / 25.04 host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7699-1 advisory.

    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;

    - RISC-V architecture;

    - x86 architecture;

    - Buffer Sharing and Synchronization framework;

    - DMA engine subsystem;

    - GPU drivers;

    - HID subsystem;

    - IIO ADC drivers;

    - IIO subsystem;

    - InfiniBand drivers;

    - Input Device core drivers;

    - Network drivers;

    - Mellanox network drivers;

    - PHY drivers;

    - Voltage and Current Regulator drivers;

    - VideoCore services drivers;

    - USB Type-C Connector System Software Interface driver;

    - Xen hypervisor drivers;

    - EROFS file system;

    - Network file system (NFS) client;

    - File systems infrastructure;

    - SMB network file system;

    - Network traffic control;

    - io_uring subsystem;

    - Kernel command line parsing driver;

    - Scheduler infrastructure;

    - Memory management;

    - Networking core;

    - MAC80211 subsystem;

    - Management Component Transport Protocol (MCTP);

    - Netfilter;

    - Open vSwitch;

    - TLS protocol;

    - Wireless networking;

    - SOF drivers; (CVE-2025-38011, CVE-2025-38095, CVE-2025-37967, CVE-2025-38012, CVE-2025-38019,     CVE-2025-37960, CVE-2025-37973, CVE-2025-37958, CVE-2025-38094, CVE-2025-37963, CVE-2025-37955,     CVE-2025-38014, CVE-2025-38025, CVE-2025-37970, CVE-2025-37947, CVE-2025-37966, CVE-2025-37948,     CVE-2025-38013, CVE-2025-37957, CVE-2025-38028, CVE-2025-37962, CVE-2025-38002, CVE-2025-37996,     CVE-2025-37992, CVE-2025-37969, CVE-2025-38009, CVE-2025-38027, CVE-2025-38020, CVE-2025-38023,     CVE-2025-38008, CVE-2025-38015, CVE-2025-37954, CVE-2025-38007, CVE-2025-38005, CVE-2025-37956,     CVE-2025-37965, CVE-2025-37972, CVE-2025-38006, CVE-2025-37971, CVE-2025-38056, CVE-2025-37968,     CVE-2025-38024, CVE-2025-37951, CVE-2025-38016, CVE-2025-38022, CVE-2025-37964, CVE-2025-37994,     CVE-2025-37952, CVE-2025-37998, CVE-2025-37993, CVE-2025-38018, CVE-2025-38010, CVE-2025-37995,     CVE-2025-38021, CVE-2025-37999, CVE-2025-37961, CVE-2025-37959, CVE-2025-37950, CVE-2025-37949)

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

  - KVM: arm64: Fix uninitialized memcache pointer in user_mem_abort() Commit fce886a60207 (KVM: arm64: Plumb     the pKVM MMU in KVM) made the initialization of the local memcache variable in user_mem_abort()     conditional, leaving a codepath where it is used uninitialized via kvm_pgtable_stage2_map(). This can fail     on any path that requires a stage-2 allocation without transition via a permission fault or dirty logging.
    Fix this by making sure that memcache is always valid. (CVE-2025-37996)

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

ID	Name	Product	Family	Severity
258130	Ubuntu 25.04 : Linux kernel (Azure) vulnerabilities (USN-7721-1)	Nessus	Ubuntu Local Security Checks	high
252277	Ubuntu 24.04 LTS / 25.04 : Linux kernel vulnerabilities (USN-7699-1)	Nessus	Ubuntu Local Security Checks	medium
249419	Linux Distros Unpatched Vulnerability : CVE-2025-37996	Nessus	Misc.	high

Detections

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CVE-2025-37996

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Tenable Plugins

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