Improper Certificate Validation Affecting s3proxy package, versions <3.3.0-r1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.88% (55th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-S3PROXY-17817803
  • published5 Jul 2026
  • disclosed10 Feb 2021

Introduced: 10 Feb 2021

CVE-2021-0341  (opens in a new tab)
CWE-295  (opens in a new tab)

How to fix?

Upgrade Chainguard s3proxy to version 3.3.0-r1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream s3proxy package and not the s3proxy package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

In verifyHostName of OkHostnameVerifier.java, there is a possible way to accept a certificate for the wrong domain due to improperly used crypto. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-8.1 Android-9 Android-10 Android-11Android ID: A-171980069

CVSS Base Scores

version 3.1