CVE-2021-31155

Publication date 5 May 2021

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

Failure to normalize the umask in please before 0.4 allows a local attacker to gain full root privileges if they are allowed to execute at least one command.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
rust-pleaser	22.04 LTS jammy	Not affected
	21.10 impish	Not affected
	21.04 hirsute	Fixed 0.4.1-1~21.04.2
	20.10 groovy	Not in release
	20.04 LTS focal	Not in release
	18.04 LTS bionic	Not in release
	16.04 LTS xenial	Ignored end of standard support
	14.04 LTS trusty	Not in release

Severity score breakdown

Parameter	Value
Base score	7.8 · High
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

USN-4955-1
Please vulnerabilities
17 May 2021

Other references

https://www.cve.org/CVERecord?id=CVE-2021-31155