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ubuntuUbuntuUSN-6212-1
HistoryJul 07, 2023 - 12:00 a.m.

Linux kernel (Intel IoTG) vulnerabilities

2023-07-0700:00:00
ubuntu.com
27
ubuntu
linux kernel
intel iotg
vulnerabilities
denial of service
arbitrary code
invlpg instruction
tlb entries
kernel memory

8.4 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.2%

Releases

  • Ubuntu 22.04 LTS
  • Ubuntu 20.04 LTS

Packages

  • linux-intel-iotg - Linux kernel for Intel IoT platforms
  • linux-intel-iotg-5.15 - Linux kernel for Intel IoT platforms

Details

Hangyu Hua discovered that the Flower classifier implementation in the
Linux kernel contained an out-of-bounds write vulnerability. An attacker
could use this to cause a denial of service (system crash) or possibly
execute arbitrary code. (CVE-2023-35788, LP: #2023577)

It was discovered that for some Intel processors the INVLPG instruction
implementation did not properly flush global TLB entries when PCIDs are
enabled. An attacker could use this to expose sensitive information
(kernel memory) or possibly cause undesired behaviors. (LP: #2023220)