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CVE-2021-21426: Deserialization of Untrusted Data

April 22, 2021 (updated April 30, 2021)

Magento-lts is a long-term support alternative to Magento Community Edition (CE). In magento-lts versions 19.4.12 and prior and 20.0.8 and prior, there is a vulnerability caused by the unsecured deserialization of an object. A patch in versions 19.4.13 and 20.0.9 was back ported from Zend Framework 3. The vulnerability was assigned CVE-2021-3007 in Zend Framework.

References

  • github.com/OpenMage/magento-lts/security/advisories/GHSA-m496-x567-f98c
  • github.com/advisories/GHSA-m496-x567-f98c
  • nvd.nist.gov/vuln/detail/CVE-2021-21426

Code Behaviors & Features

Detect and mitigate CVE-2021-21426 with GitLab Dependency Scanning

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Affected versions

All versions up to 19.4.12, all versions starting from 20.0.0 up to 20.0.8

Fixed versions

  • 19.4.13
  • 20.0.9

Solution

Upgrade to versions 19.4.13, 20.0.9 or above.

Impact 9.8 CRITICAL

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

Learn more about CVSS

Weakness

  • CWE-502: Deserialization of Untrusted Data
  • CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Source file

packagist/openmage/magento-lts/CVE-2021-21426.yml

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