ESB-2026.3312 — Vulnetix

ESB-2026.3312 PUBLISHED CVSS 9.800000190734863 CRITICAL

=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2026.3312 USN-8152-1: Linux kernel (OEM) vulnerabilities 7 April 2026 =========================================================================== AUSCERT Security Bulletin Summary --------------------------------- Product: Linux kernel (OEM) Publisher: Ubuntu Operating System: Ubuntu Resolution: Patch/Upgrade CVE Names: CVE-2025-68305 CVE-2025-68333 CVE-2025-68358 CVE-2025-68335 CVE-2025-68340 CVE-2025-68343 CVE-2025-68345 CVE-2025-68346 CVE-2025-68347 CVE-2025-68354 CVE-2026-23268 CVE-2026-23269 CVE-2025-68362 CVE-2025-68378 CVE-2025-68742 CVE-2025-40248 CVE-2025-68285 CVE-2025-68356 CVE-2025-68287 CVE-2025-68359 CVE-2025-68360 CVE-2025-68256 CVE-2025-68293 CVE-2025-68741 CVE-2026-23060 CVE-2026-23074 CVE-2026-23403 CVE-2026-23404 CVE-2026-23405 CVE-2026-23406 CVE-2026-23407 CVE-2026-23408 CVE-2026-23409 CVE-2026-23410 CVE-2026-23411 CVE-2025-68364 CVE-2025-68366 CVE-2025-68367 CVE-2025-68369 CVE-2025-68371 CVE-2025-68372 CVE-2025-68727 CVE-2025-40258 CVE-2025-40259 CVE-2025-40261 CVE-2025-40262 CVE-2025-40263 CVE-2025-40264 CVE-2025-68728 CVE-2025-68733 CVE-2025-68764 CVE-2026-23111 CVE-2025-68219 CVE-2025-71128 CVE-2025-68763 CVE-2025-68762 CVE-2025-68760 CVE-2025-68756 CVE-2025-68755 CVE-2025-68754 CVE-2025-68752 CVE-2025-68751 CVE-2025-68739 CVE-2025-68738 CVE-2025-68730 CVE-2025-68729 CVE-2025-40252 CVE-2025-40250 CVE-2025-40251 CVE-2025-40253 CVE-2025-68726 CVE-2025-68375 CVE-2025-68373 CVE-2025-68370 CVE-2025-68338 CVE-2025-68334 CVE-2025-68329 CVE-2025-68326 CVE-2025-68324 CVE-2025-68323 CVE-2025-40345 CVE-2025-68304 CVE-2025-68300 CVE-2025-68299 CVE-2025-68294 CVE-2025-68292 CVE-2025-68281 CVE-2025-68265 CVE-2025-68262 CVE-2025-68236 CVE-2025-68234 CVE-2025-68232 CVE-2025-68228 CVE-2025-68225 CVE-2025-68221 CVE-2025-68212 CVE-2025-40290 CVE-2025-40265 CVE-2025-40260 CVE-2025-68214 CVE-2025-68217 CVE-2025-68218 CVE-2025-68220 CVE-2025-68227 CVE-2025-68229 CVE-2025-68231 CVE-2025-68233 CVE-2025-68237 CVE-2025-68238 CVE-2025-68222 CVE-2025-68282 CVE-2025-68283 CVE-2025-68284 CVE-2025-68286 CVE-2025-68288 CVE-2025-68289 CVE-2025-68290 CVE-2025-68295 CVE-2025-68301 CVE-2025-68298 CVE-2025-68302 CVE-2025-68303 CVE-2025-68307 CVE-2025-68308 CVE-2025-68327 CVE-2025-68328 CVE-2025-68330 CVE-2025-68331 CVE-2025-68339 CVE-2025-68306 CVE-2025-68332 CVE-2025-40246 CVE-2025-40255 CVE-2025-68380 CVE-2025-68724 CVE-2025-68732 CVE-2025-68740 CVE-2025-40266 CVE-2025-68341 CVE-2025-68348 CVE-2025-68374 CVE-2025-68376 CVE-2025-68735 CVE-2025-68213 CVE-2025-68215 CVE-2025-68361 CVE-2025-68254 CVE-2025-68744 CVE-2025-68746 CVE-2025-68747 CVE-2025-68749 CVE-2025-68743 CVE-2025-68753 CVE-2025-68757 CVE-2025-68758 CVE-2025-68759 CVE-2025-68765 CVE-2025-68766 CVE-2025-68342 CVE-2025-68344 CVE-2025-68352 CVE-2025-68363 CVE-2025-68748 CVE-2025-40254 CVE-2025-68261 CVE-2025-40257 CVE-2025-68263 CVE-2025-68266 CVE-2025-62626 CVE-2025-68325 CVE-2025-68336 CVE-2025-68337 CVE-2025-68349 CVE-2025-68223 CVE-2025-68230 CVE-2025-68235 CVE-2025-40249 CVE-2025-40247 CVE-2025-68296 CVE-2025-68297 CVE-2025-68379 CVE-2025-68255 CVE-2025-68257 CVE-2025-68258 CVE-2025-68259 CVE-2025-68264 Original Bulletin: https://ubuntu.com/security/notices/USN-8152-1 Comment: CVSS (Max): 9.8 CVE-2025-68263 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) CVSS Source: Advanced Micro Devices Inc., [Ubuntu], Red Hat, SUSE Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H EPSS (Max): 0.1% (28th) CVE-2025-68299 2026-04-06 - --------------------------BEGIN INCLUDED TEXT-------------------- USN-8152-1: Linux kernel (OEM) vulnerabilities Publication date 6 April 2026 Overview Several security issues were fixed in the Linux kernel. Releases 24.04 LTS --------------------------------------------------------------------------------- Open side navigation Packages o linux-oem-6.17 - Linux kernel for OEM systems Details It was discovered that some AMD Zen 5 processors supporting RDSEED instruction did not properly handle entropy, potentially resulting in the consumption of insufficiently random values. A local attacker could possibly use this issue to influence the values returned by the RDSEED instruction causing loss of confidentiality and integrity. ( CVE-2025-62626 ) Qualys discovered that several vulnerabilities existed in the AppArmor Linux kernel Security Module (LSM). An unprivileged local attacker could use these issues to load, replace, and remove arbitrary AppArmor profiles causing denial of service, exposure of sensitive information (kernel memory), local privilege escalation, or possibly escape a container. (LP: #2143853, CVE-2026-23268 , CVE-2026-23269 , CVE-2026-23403 , CVE-2026-23404 , CVE-2026-23405 , CVE-2026-23406 , CVE-2026-23407 , CVE-2026-23408 , CVE-2026-23409 , CVE-2026-23410 , CVE-2026-23411 ) 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: o ARM64 architecture; o S390 architecture; o x86 architecture; o Block layer subsystem; o Cryptographic API; o Compute Acceleration Framework; o ATM drivers; o Network block device driver; o Bluetooth drivers; o Data acquisition framework and drivers; o Hardware crypto device drivers; o Device frequency scaling framework; o Intel Stratix 10 firmware drivers; o GPIO subsystem; o GPU drivers; o Microsoft Hyper-V drivers; o CoreSight HW tracing drivers; o IIO subsystem; o InfiniBand drivers; o Input Device core drivers; o Input Device (Tablet) drivers; o IOMMU subsystem; o IRQ chip drivers; o Macintosh device drivers; o Multiple devices driver; o MOST (Media Oriented Systems Transport) drivers; o MTD block device drivers; o Network drivers; o Mellanox network drivers; o Texas Instruments network drivers; o Ethernet team driver; o MediaTek network drivers; o NVME drivers; o Pin controllers subsystem; o x86 platform drivers; o Voltage and Current Regulator drivers; o Real Time Clock drivers; o S/390 drivers; o SCSI subsystem; o Texas Instruments SoC drivers; o SPI subsystem; o Media Oriented Systems Transport (MOST) driver; o Realtek RTL8723BS SDIO drivers; o TCM subsystem; o UFS subsystem; o DesignWare USB3 driver; o USB Gadget drivers; o Renesas USBHS Controller drivers; o USB Mass Storage drivers; o USB Type-C Connector System Software Interface driver; o Backlight driver; o Framebuffer layer; o AFS file system; o BFS file system; o BTRFS file system; o EROFS file system; o Ext4 file system; o FAT file system; o GFS2 file system; o Journaling layer for block devices (JBD2); o File systems infrastructure; o Network file system (NFS) client; o NTFS3 file system; o OCFS2 file system; o SMB network file system; o XFS file system; o BPF subsystem; o MediaTek SoC drivers; o Bluetooth subsystem; o io_uring subsystem; o Locking primitives; o Scheduler infrastructure; o Timer subsystem; o Tracing infrastructure; o Kexec HandOver (KHO); o Memory management; o Ceph Core library; o Networking core; o Devlink API; o IPv4 networking; o IPv6 networking; o Multipath TCP; o Netfilter; o Open vSwitch; o Network traffic control; o VMware vSockets driver; o eXpress Data Path; o Integrity Measurement Architecture(IMA) framework; o Simplified Mandatory Access Control Kernel framework; o FireWire sound drivers; o HD-audio driver; o Turtle Beach Wavefront ALSA driver; o SoundWire (SDCA) ASoC drivers --------------------------------------------------------------------------------- Update instructions ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. The problem can be corrected by updating your system to the following package versions: Ubuntu Release Package Version linux-image-6.17.0-1017-oem - 6.17.0-1017.17 linux-image-oem-24.04 - 6.17.0-1017.17 linux-image-oem-24.04a - 6.17.0-1017.17 24.04 LTS noble linux-image-oem-24.04b - 6.17.0-1017.17 linux-image-oem-24.04c - 6.17.0-1017.17 linux-image-oem-24.04d - 6.17.0-1017.17 linux-image-oem-6.17 - 6.17.0-1017.17 --------------------------------------------------------------------------------- References o https://launchpad.net/bugs/2143853 o CVE-2026-23411 o CVE-2026-23410 o CVE-2026-23409 o CVE-2026-23408 o CVE-2026-23407 o CVE-2026-23406 o CVE-2026-23405 o CVE-2026-23404 o CVE-2026-23403 o CVE-2026-23269 o CVE-2026-23268 o CVE-2026-23111 o CVE-2026-23074 o CVE-2026-23060 o CVE-2025-71128 o CVE-2025-68766 o CVE-2025-68765 o CVE-2025-68764 o CVE-2025-68763 o CVE-2025-68762 o CVE-2025-68760 o CVE-2025-68759 o CVE-2025-68758 o CVE-2025-68757 o CVE-2025-68756 o CVE-2025-68755 o CVE-2025-68754 o CVE-2025-68753 o CVE-2025-68752 o CVE-2025-68751 o CVE-2025-68749 o CVE-2025-68748 o CVE-2025-68747 o CVE-2025-68746 o CVE-2025-68744 o CVE-2025-68743 o CVE-2025-68742 o CVE-2025-68741 o CVE-2025-68740 o CVE-2025-68739 o CVE-2025-68738 o CVE-2025-68735 o CVE-2025-68733 o CVE-2025-68732 o CVE-2025-68730 o CVE-2025-68729 o CVE-2025-68728 o CVE-2025-68727 o CVE-2025-68726 o CVE-2025-68724 o CVE-2025-68380 o CVE-2025-68379 o CVE-2025-68378 o CVE-2025-68376 o CVE-2025-68375 o CVE-2025-68374 o CVE-2025-68373 o CVE-2025-68372 o CVE-2025-68371 o CVE-2025-68370 o CVE-2025-68369 o CVE-2025-68367 o CVE-2025-68366 o CVE-2025-68364 o CVE-2025-68363 o CVE-2025-68362 o CVE-2025-68361 o CVE-2025-68360 o CVE-2025-68359 o CVE-2025-68358 o CVE-2025-68356 o CVE-2025-68354 o CVE-2025-68352 o CVE-2025-68349 o CVE-2025-68348 o CVE-2025-68347 o CVE-2025-68346 o CVE-2025-68345 o CVE-2025-68344 o CVE-2025-68343 o CVE-2025-68342 o CVE-2025-68341 o CVE-2025-68340 o CVE-2025-68339 o CVE-2025-68338 o CVE-2025-68337 o CVE-2025-68336 o CVE-2025-68335 o CVE-2025-68334 o CVE-2025-68333 o CVE-2025-68332 o CVE-2025-68331 o CVE-2025-68330 o CVE-2025-68329 o CVE-2025-68328 o CVE-2025-68327 o CVE-2025-68326 o CVE-2025-68325 o CVE-2025-68324 o CVE-2025-68323 o CVE-2025-68308 o CVE-2025-68307 o CVE-2025-68306 o CVE-2025-68305 o CVE-2025-68304 o CVE-2025-68303 o CVE-2025-68302 o CVE-2025-68301 o CVE-2025-68300 o CVE-2025-68299 o CVE-2025-68298 o CVE-2025-68297 o CVE-2025-68296 o CVE-2025-68295 o CVE-2025-68294 o CVE-2025-68293 o CVE-2025-68292 o CVE-2025-68290 o CVE-2025-68289 o CVE-2025-68288 o CVE-2025-68287 o CVE-2025-68286 o CVE-2025-68285 o CVE-2025-68284 o CVE-2025-68283 o CVE-2025-68282 o CVE-2025-68281 o CVE-2025-68266 o CVE-2025-68265 o CVE-2025-68264 o CVE-2025-68263 o CVE-2025-68262 o CVE-2025-68261 o CVE-2025-68259 o CVE-2025-68258 o CVE-2025-68257 o CVE-2025-68256 o CVE-2025-68255 o CVE-2025-68254 o CVE-2025-68238 o CVE-2025-68237 o CVE-2025-68236 o CVE-2025-68235 o CVE-2025-68234 o CVE-2025-68233 o CVE-2025-68232 o CVE-2025-68231 o CVE-2025-68230 o CVE-2025-68229 o CVE-2025-68228 o CVE-2025-68227 o CVE-2025-68225 o CVE-2025-68223 o CVE-2025-68222 o CVE-2025-68221 o CVE-2025-68220 o CVE-2025-68219 o CVE-2025-68218 o CVE-2025-68217 o CVE-2025-68215 o CVE-2025-68214 o CVE-2025-68213 o CVE-2025-68212 o CVE-2025-62626 o CVE-2025-40345 o CVE-2025-40290 o CVE-2025-40266 o CVE-2025-40265 o CVE-2025-40264 o CVE-2025-40263 o CVE-2025-40262 o CVE-2025-40261 o CVE-2025-40260 o CVE-2025-40259 o CVE-2025-40258 o CVE-2025-40257 o CVE-2025-40255 o CVE-2025-40254 o CVE-2025-40253 o CVE-2025-40252 o CVE-2025-40251 o CVE-2025-40250 o CVE-2025-40249 o CVE-2025-40248 o CVE-2025-40247 o CVE-2025-40246 --------------------------------------------------------------------------------- Related notices o USN-8149-1 o USN-8148-1 o USN-8148-2 o USN-8148-3 o USN-8148-4 o USN-8145-1 o USN-8145-2 o USN-8145-3 o USN-8143-1 o USN-8143-2 o USN-8142-1 o USN-8141-1 o USN-8126-1 o USN-8125-1 o USN-8116-1 o USN-8100-1 o USN-8096-1 o USN-8096-2 o USN-8096-3 o USN-8096-4 o USN-8096-5 o USN-8095-1 o USN-8095-2 o USN-8095-3 o USN-8095-4 o USN-8095-5 o USN-8094-1 o USN-8094-2 o USN-8094-3 o USN-8094-4 o USN-8094-5 o USN-8016-1 --------------------------------------------------------------------------------- - --------------------------END INCLUDED TEXT---------------------- You have received this e-mail bulletin as a result of your organisation's registration with AUSCERT. 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Risk Scores

CVSS v3.1

9.800000190734863

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products

Vendor	Product	Versions
Ubuntu	Linux kernel (OEM)

Timeline

Apr 7, 2026 CVE Published
Apr 7, 2026 Distribution Patch

References

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