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Ubuntu Security Notice USN-5650-1

Posted Oct 1, 2022

Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5650-1 - It was discovered that the framebuffer driver on the Linux kernel did not verify size limits when changing font or screen size, leading to an out-of- bounds write. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that the virtual terminal driver in the Linux kernel did not properly handle VGA console font changes, leading to an out-of-bounds write. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local

systems | linux, ubuntu

advisories | CVE-2021-33655, CVE-2021-33656, CVE-2021-4037, CVE-2022-0850, CVE-2022-1199, CVE-2022-1204, CVE-2022-1729, CVE-2022-20368, CVE-2022-2639, CVE-2022-2964, CVE-2022-2978, CVE-2022-3028, CVE-2022-3202, CVE-2022-36946

SHA-256 | a632d5cd01e37da5d6b95bdc8fbe10f589561b1c98bfa15fbef375169d7f4e19

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