CVE-2021-3156

CVE Details

Release Date:

2021-01-26

Description

Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege escalation to root via "sudoedit -s" and a command-line argument that ends with a single backslash character.

See more information about CVE-2021-3156 from MITRE CVE dictionary and NIST NVD

CVSS v3.0 metrics

NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score:	7.8	Base Metrics:	AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Access Vector:	Local network	Attack Complexity:	Low
Privileges Required:	Low	User Interaction:	None
Scope:	Unchanged	Confidentiality Impact:	High
Integrity Impact:	High	Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 6 (sudo)	ELSA-2021-9169	2021-04-15
Oracle Linux version 7 (sudo)	ELSA-2021-0221	2021-01-27
Oracle Linux version 8 (sudo)	ELSA-2021-0218	2021-01-27
Oracle VM version 3 (sudo)	OVMSA-2021-0012	2021-04-27
Oracle VM version 3.4 (sudo)	OVMSA-2021-0003	2021-01-27

This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team