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ubuntuUbuntuUSN-5859-1
HistoryFeb 09, 2023 - 12:00 a.m.

Linux kernel (OEM) vulnerabilities

2023-02-0900:00:00
ubuntu.com
34
ubuntu 20.04 lts
linux-oem-5.14
netfilter
netronome
intel i915
bluetooth l2cap
use-after-free
gpu tlb flush
memory initialization
cve-2023-0179
cve-2022-3545
cve-2022-4139
cve-2022-42895

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.2

Confidence

High

EPSS

0.001

Percentile

28.0%

Releases

  • Ubuntu 20.04 LTS

Packages

  • linux-oem-5.14 - Linux kernel for OEM systems

Details

Davide Ornaghi discovered that the netfilter subsystem in the Linux kernel
did not properly handle VLAN headers in some situations. A local attacker
could use this to cause a denial of service (system crash) or possibly
execute arbitrary code. (CVE-2023-0179)

It was discovered that the Netronome Ethernet driver in the Linux kernel
contained a use-after-free vulnerability. A local attacker could use this
to cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2022-3545)

It was discovered that the Intel i915 graphics driver in the Linux kernel
did not perform a GPU TLB flush in some situations. A local attacker could
use this to cause a denial of service or possibly execute arbitrary code.
(CVE-2022-4139)

Tamรกs Koczka discovered that the Bluetooth L2CAP implementation in the
Linux kernel did not properly initialize memory in some situations. A
physically proximate attacker could possibly use this to expose sensitive
information (kernel memory). (CVE-2022-42895)

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.2

Confidence

High

EPSS

0.001

Percentile

28.0%