Vulnerability · Published Apr 21, 2021 · Assigned by GitHub_M

CVE-2021-21426Fixes a bug in Zend Framework's Stream HTTP Wrapper

Critical 9.8

In plain English

A critical-severity unsafe deserialization in magento-lts from OpenMage. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 68% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)9.8Critical

Exploit odds (30 days)1.2%top 31.6% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Packagist	openmage/magento-lts	19.4.13	GHSA-m496-x567-f98c
Packagist	openmage/magento-lts	20.0.9	GHSA-m496-x567-f98c

Affected products (as reported)

Vendor	Product	Versions
OpenMage	magento-lts	<= 19.4.12<= 20.0.8

Weakness: CWE-502 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

https://github.com/OpenMage/magento-lts/security/advisories/GHSA-m496-x567-f98c x_refsource_CONFIRM