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ubuntuUbuntuUSN-6020-1
HistoryApr 14, 2023 - 12:00 a.m.

Linux kernel (BlueField) vulnerabilities

2023-04-1400:00:00
ubuntu.com
38
linux kernel
bluefield
ubuntu 20.04 lts
denial of service
memory exhaustion
kvm vmx
indirect branch prediction
sensitive information exposure
usb gadget
use-after-free vulnerability
system crash
rndis usb driver
integer overflow
physical access

8.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

8.3 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

25.5%

Releases

  • Ubuntu 20.04 LTS

Packages

  • linux-bluefield - Linux kernel for NVIDIA BlueField platforms

Details

It was discovered that the System V IPC implementation in the Linux kernel
did not properly handle large shared memory counts. A local attacker could
use this to cause a denial of service (memory exhaustion). (CVE-2021-3669)

It was discovered that the KVM VMX implementation in the Linux kernel did
not properly handle indirect branch prediction isolation between L1 and L2
VMs. An attacker in a guest VM could use this to expose sensitive
information from the host OS or other guest VMs. (CVE-2022-2196)

Gerald Lee discovered that the USB Gadget file system implementation in the
Linux kernel contained a race condition, leading to a use-after-free
vulnerability in some situations. A local attacker could use this to cause
a denial of service (system crash) or possibly execute arbitrary code.
(CVE-2022-4382)

It was discovered that the RNDIS USB driver in the Linux kernel contained
an integer overflow vulnerability. A local attacker with physical access
could plug in a malicious USB device to cause a denial of service (system
crash) or possibly execute arbitrary code. (CVE-2023-23559)

8.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

8.3 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

25.5%