Out-of-bounds Read Affecting upx package, versions <3.96-r0


Severity

Recommended
0.0
medium
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
0.17% (55th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ALPINE321-UPX-8489904
  • published6 Dec 2024
  • disclosed27 Dec 2019

Introduced: 27 Dec 2019

CVE-2019-20021  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Alpine:3.21 upx to version 3.96-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream upx package and not the upx package as distributed by Alpine. See How to fix? for Alpine:3.21 relevant fixed versions and status.

A heap-based buffer over-read was discovered in canUnpack in p_mach.cpp in UPX 3.95 via a crafted Mach-O file.

CVSS Scores

version 3.1