Sunday, February 6, 2022

Ubuntu Security Notice USN-5262-1

Ubuntu Security Notice USN-5262-1
February 03, 2022

gdisk vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.04 ESM


The sgdisk utility of GPT fdisk could be made to crash or
possibly allow for elevated privileges.

Software Description:
- gdisk: GPT fdisk text-mode partitioning tool


The potential for an out of bounds write due to a missing bounds
check was discovered to impact the sgdisk utility of GPT fdisk.
Exploitation requires the use of a maliciously formatted storage
device and could cause sgdisk to crash as well as possibly
allow for local privilege escalation.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 16.04 ESM:
gdisk 1.0.1-1ubuntu0.1~esm2

In general, a standard system update will make all the necessary changes.

CVE-2020-0256, CVE-2021-0308

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