CVE-2020-7067

Public Exploit
OOB Read in urldecode()

Description

In PHP versions 7.2.x below 7.2.30, 7.3.x below 7.3.17 and 7.4.x below 7.4.5, if PHP is compiled with EBCDIC support (uncommon), urldecode() function can be made to access locations past the allocated memory, due to erroneously using signed numbers as array indexes.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 9.98% Top 10%
Vendor Advisory debian.org Vendor Advisory debian.org Vendor Advisory php.net
Affected: PHP Group PHP
Published at:
Updated at:

References

Link Tags
https://www.debian.org/security/2020/dsa-4717 third party advisory vendor advisory
https://www.debian.org/security/2020/dsa-4719 third party advisory vendor advisory
https://www.oracle.com/security-alerts/cpuoct2020.html third party advisory
https://bugs.php.net/bug.php?id=79465 exploit vendor advisory
https://security.netapp.com/advisory/ntap-20200504-0001/ third party advisory
https://www.oracle.com/security-alerts/cpuApr2021.html third party advisory not applicable
https://www.tenable.com/security/tns-2021-14 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2020-7067?
CVE-2020-7067 has been scored as a high severity vulnerability.
How to fix CVE-2020-7067?
To fix CVE-2020-7067, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-7067 being actively exploited in the wild?
It is possible that CVE-2020-7067 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~10% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-7067?
CVE-2020-7067 affects PHP Group PHP.
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