VulnerabilityPublished 4 Mar 2026Updated 27 Oct 2026

CVE-2024-36331: linux-azure-fips vulnerabilities

Affects Linux kernelSource GCVE Database

Mentioned vulnerabilities

Authoritative record:CVE-2024-36331· Low 3.2

Not known to be exploited · CVSS 3.2 Low : upgrade to 6.8.0-1046.52+fips1 when convenient.

Data as of 27 Oct 2026, 06:42 UTC

CVSS 3.1 base score

3.2Low

How severe the flaw is on the 0–10 CVSS scale.

Patch: Available – fixed in 6.8.0-1046.52+fips1

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

Attack Vector: Local
Attack Complexity: Low
Privileges Required: High
User Interaction: None
Scope: Changed
Confidentiality: None
Integrity: Low
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Local: The vulnerable component is not bound to the network stack and the attacker’s path is via read/write/execute capabilities. Either: the attacker exploits the vulnerability by accessing the target system locally (e.g., keyboard, console), or remotely (e.g., SSH); or the attacker relies on User Interaction by another person to perform actions required to exploit the vulnerability (e.g., tricking a legitimate user into opening a malicious document).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: High: The attacker is authorized with (i.e., requires) privileges that provide significant (e.g., administrative) control over the vulnerable component that could affect component-wide settings and files.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Changed: An exploited vulnerability can affect resources beyond the security scope managed by the security authority of the vulnerable component. In this case, the vulnerable component and the impacted component are different and managed by different security authorities.
Confidentiality: None: There is no loss of confidentiality within the impacted component.
Integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact on the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 6 Sep 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

usn-8074-2

What to do

Upgrade the Ubuntu linux-azure-fips package to 6.8.0-1046.52+fips1.

Patches and advisories

ubuntu.com/security/notices/USN-8074-2 (opens in a new tab)

Affected software

Product	Affected	Fixed in
Ubuntu Pro FIPS-updates 24.04 LTSlinux-azure-fips`pkg:deb/ubuntu/linux-azure-fips?arch=source&distro=fips-updates/noble`Other threats	Affected <6.8.0-1046.52+fips1	Fixed in 6.8.0-1046.52+fips1

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

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) Oleksii Oleksenko, Cedric Fournet, Jana Hofmann, Boris Köpf, Stavros Volos, and Flavien Solt discovered that some AMD processors may allow an attacker to infer data from previous stores, potentially resulting in the leakage of privileged information. A local attacker could possibly use this to expose sensitive information. (CVE-2024-36350, CVE-2024-36357) 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: - ARM32 architecture; - ARM64 architecture; - MIPS architecture; - PA-RISC architecture; - PowerPC architecture; - RISC-V architecture; - S390 architecture; - x86 architecture; - Block layer subsystem; - Cryptographic API; - Compute Acceleration Framework; - ACPI drivers; - Serial ATA and Parallel ATA drivers; - ATM drivers; - Drivers core; - ATA over ethernet (AOE) driver; - DRBD Distributed Replicated Block Device drivers; - Network block device driver; - Ublk userspace block driver; - Bluetooth drivers; - Bus devices; - Character device driver; - TPM device driver; - Clock framework and drivers; - Data acquisition framework and drivers; - CPU frequency scaling framework; - Hardware crypto device drivers; - Device frequency scaling framework; - Buffer Sharing and Synchronization framework; - DMA engine subsystem; - EDAC drivers; - Arm Firmware Framework for ARMv8-A(FFA); - ARM SCMI message protocol; - FPGA Framework; - GPU drivers; - HID subsystem; - Hardware monitoring drivers; - HW tracing; - I2C subsystem; - I3C subsystem; - IIO subsystem; - InfiniBand drivers; - Input Device core drivers; - Input Device (Miscellaneous) drivers; - IOMMU subsystem; - IRQ chip drivers; - MCB driver; - Multiple devices driver; - Media drivers; - Multifunction device drivers; - Microchip PCI driver; - Intel Management Engine Interface driver; - PCI Endpoint Test driver; - TI TPS6594 PFSM driver; - VMware VMCI Driver; - MMC subsystem; - MTD block device drivers; - Network drivers; - Mellanox network drivers; - STMicroelectronics network drivers; - NVDIMM (Non-Volatile Memory Device) drivers; - NVME drivers; - PCI subsystem; - Amlogic Meson DDR PMU; - PHY drivers; - Pin controllers subsystem; - x86 platform drivers; - Power supply drivers; - Powercap sysfs driver; - PTP clock framework; - PWM drivers; - RapidIO drivers; - Voltage and Current Regulator drivers; - Remote Processor subsystem; - S/390 drivers; - SCSI subsystem; - ASPEED SoC drivers; - QCOM SoC drivers; - Samsung SoC drivers; - SPI subsystem; - small TFT LCD display modules; - Media staging drivers; - TCM subsystem; - Trusted Execution Environment drivers; - Thunderbolt and USB4 drivers; - TTY drivers; - UFS subsystem; - Cadence USB3 driver; - ChipIdea USB driver; - USB Device Class drivers; - USB core drivers; - DesignWare USB3 driver; - USB Gadget drivers; - USB Host Controller drivers; - Renesas USBHS Controller drivers; - USB Type-C support driver; - USB Type-C Connector System Software Interface driver; - VFIO drivers; - Virtio Host (VHOST) subsystem; - Backlight driver; - Framebuffer layer; - TSM Common Guest driver; - Virtio drivers; - Xen hypervisor drivers; - File systems infrastructure; - BTRFS file system; - Ceph distributed file system; - EFI Variable file system; - Ext4 file system; - F2FS file system; - GFS2 file system; - JFFS2 file system; - JFS file system; - Network file system (NFS) client; - Network file system (NFS) server daemon; - NILFS2 file system; - NTFS3 file system; - Overlay file system; - Proc file system; - SMB network file system; - DRM display driver; - Asynchronous Transfer Mode (ATM) subsystem; - BPF subsystem; - Memory Management; - Internal shared memory driver; - LZO compression library; - Mellanox drivers; - padata parallel execution mechanism; - Networking subsytem; - Bluetooth subsystem; - Netfilter; - Network traffic control; - SCTP protocol; - Network sockets; - UDP network protocol; - eXpress Data Path; - XFRM subsystem; - Digital Audio (PCM) driver; - Universal MIDI packet (UMP) support module; - Tracing infrastructure; - User-space API (UAPI); - io_uring subsystem; - IPC subsystem; - Perf events; - Kernel exit() syscall; - IRQ subsystem; - Padata parallel execution mechanism; - Kernel command line parsing driver; - Hibernation control; - RCU subsystem; - Restartable seuqences system call mechanism; - Maple Tree data structure library; - Memory management; - KASAN memory debugging fra

References

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