According to news on June 30, Canonical today launched a Linux Kernel security update for all supported Ubuntu distributions, fixing three high-risk vulnerabilities in previous versions.
IT Home hereby attaches the applicable Ubuntu version:
This update mainly fixes the following 3 security vulnerabilities:
An out-of-bounds write vulnerability discovered by Hangyu Hua in the Linux kernel's Flower classifier implementation could allow an attacker to cause a denial of service (system crash) or execute arbitrary code.
Exists in Ubuntu 22.10 and Ubuntu 22.04 LTS distributions running Linux Kernel 5.19
This vulnerability was discovered by Xingyuan Mo and Gengjia Chen, Exists in the io_uring subsystem, allowing local attackers to cause a denial of service.
The new Linux kernel security update also fixes a flaw affecting Intel processors where the INVLPG instruction implementation fails to properly refresh global TLB entries when PCID is enabled. caused by. This flaw could allow an attacker to expose sensitive information (kernel memory) or could cause unexpected behavior.
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