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Ubuntu Security Notice USN-6494-2

Posted Dec 1, 2023

Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6494-2 - Yu Hao discovered that the UBI driver in the Linux kernel did not properly check for MTD with zero erasesize during device attachment. A local privileged attacker could use this to cause a denial of service. Lucas Leong discovered that the netfilter subsystem in the Linux kernel did not properly validate some attributes passed from userspace. A local attacker could use this to cause a denial of service or possibly expose sensitive information.

tags | advisory, denial of service, kernel, local

systems | linux, ubuntu

advisories | CVE-2023-31085, CVE-2023-39189, CVE-2023-39192, CVE-2023-39193, CVE-2023-39194, CVE-2023-42754, CVE-2023-45862, CVE-2023-45871, CVE-2023-5717

SHA-256 | f60fcecace1faaeb9fc2bd6e186bb143ebb3802e541e9c577ab37e5ad12177f5

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