CVE-2020-8165: ActiveSupport potentially unintended unmarshalling of user-provided objects in MemCacheStore and RedisCacheStore

CVE-2020-8165 · Severity: low · CVSS 3.1 · Published 2020-05-26

ActiveSupport potentially unintended unmarshalling of user-provided objects in MemCacheStore and RedisCacheStore

Technologies: activesupport (RubyGems). Vendors: RubyGems.

Quick answers

Is CVE-2020-8165 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2020-8165 being exploited in the wild.
How severe is CVE-2020-8165?
Low severity, with a CVSS score of 3.1, published 26 May 2020.
Which products and versions are affected?
activesupport (RubyGems) ECOSYSTEM:introduced=5.0.0,fixed=5.2.4.3.
Is there a fix for CVE-2020-8165?
Yes. activesupport (RubyGems): upgrade to 5.2.4.3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2020-8165?
Check whether you run activesupport (RubyGems) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • activesupport (RubyGems): upgrade to 5.2.4.3 or later
    bundle update activesupport

Affected products

  • activesupport (RubyGems) ECOSYSTEM:introduced=5.0.0,fixed=5.2.4.3

Identifiers

  • CVE-2020-8165
  • GHSA-2p68-f74v-9wc6

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