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Ubuntu 16.04 ESM: USN-5262-1 Critical: gdisk Privilege Escalation

ubuntu
Calendar Grey February 3, 2022
Dist Ubuntu Esm H88
Ubuntu 5262-1 addresses gdisk security flaws that could lead to local privilege elevation and system failures from malicious storage hardware.
The sgdisk utility of GPT fdisk could be made to crash or possibly allow for elevated privileges.

Summary

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

Details:

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.

Topics%20covered

Topics Covered

security advisory privilege escalation Ubuntu crash out of bounds sgdisk

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.

References

https://ubuntu.com/security/notices/USN-5262-1

CVE-2020-0256, CVE-2021-0308

Severity
critical
Lowest
Low
Medium
High
Critical

February 03, 2022

Topics%20covered

Topics Covered

security advisory privilege escalation Ubuntu crash out of bounds sgdisk

Package Information

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