CVE-2020-9588: Observable Discrepancy

May 24, 2022 (updated January 19, 2024)

Magento versions 2.3.4 and earlier, 2.2.11 and earlier (see note), 1.14.4.4 and earlier, and 1.9.4.4 and earlier have an observable timing discrepancy vulnerability. Successful exploitation could lead to signature verification bypass.

References

github.com/advisories/GHSA-j2r4-2cr6-h3r3
helpx.adobe.com/security/products/magento/apsb20-22.html
nvd.nist.gov/vuln/detail/CVE-2020-9588

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