CVE-2021-29482 HIGH

CVE-2021-29482: denial of service in github.com/ulikunitz/xz

Vendor Ulikunitz
Product xz
Weakness CWE-835
Published April 28, 2021
Last update August 3, 2024

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

xz is a compression and decompression library focusing on the xz format completely written in Go. The function readUvarint used to read the xz container format may not terminate a loop provide malicous input. The problem has been fixed in release v0.5.8. As a workaround users can limit the size of the compressed file input to a reasonable size for their use case. The standard library had recently the same issue and got the CVE-2020-16845 allocated.

Key dates

02Disclosure timeline

April 28, 2021 CVE published
August 3, 2024 Record updated