Loop with Unreachable Exit Condition ('Infinite Loop') Affecting golang-github-ulikunitz-xz package, versions *


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.44% (63rd percentile)

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  • Snyk IDSNYK-UBUNTU2404-GOLANGGITHUBULIKUNITZXZ-6709747
  • published25 Jun 2025
  • disclosed28 Apr 2021

Introduced: 28 Apr 2021

CVE-2021-29482  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

There is no fixed version for Ubuntu:24.04 golang-github-ulikunitz-xz.

NVD Description

Note: Versions mentioned in the description apply only to the upstream golang-github-ulikunitz-xz package and not the golang-github-ulikunitz-xz package as distributed by Ubuntu. See How to fix? for Ubuntu:24.04 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1