CVE-2020-7064

Public Exploit
Use-of-uninitialized-value in exif

Description

In PHP versions 7.2.x below 7.2.9, 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while parsing EXIF data with exif_read_data() function, it is possible for malicious data to cause PHP to read one byte of uninitialized memory. This could potentially lead to information disclosure or crash.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 2.71% Top 15%
Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory debian.org Vendor Advisory debian.org Vendor Advisory php.net
Affected: PHP Group PHP
Published at:
Updated at:

References

Link Tags
https://lists.debian.org/debian-lts-announce/2020/04/msg00021.html third party advisory mailing list
https://usn.ubuntu.com/4330-1/ third party advisory vendor advisory
https://usn.ubuntu.com/4330-2/ third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00025.html vendor advisory mailing list third party advisory
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://bugs.php.net/bug.php?id=79282 patch exploit vendor advisory issue tracking
https://security.netapp.com/advisory/ntap-20200403-0001/ third party advisory
https://www.oracle.com/security-alerts/cpujan2021.html third party advisory
https://www.tenable.com/security/tns-2021-14 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2020-7064?
CVE-2020-7064 has been scored as a medium severity vulnerability.
How to fix CVE-2020-7064?
To fix CVE-2020-7064, 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-2020-7064 being actively exploited in the wild?
It is possible that CVE-2020-7064 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~3% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-7064?
CVE-2020-7064 affects PHP Group PHP.
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