CVE-2019-11040

Public Exploit
Heap buffer overflow in EXIF extension

Description

When PHP EXIF extension is parsing EXIF information from an image, e.g. via exif_read_data() function, in PHP versions 7.1.x below 7.1.30, 7.2.x below 7.2.19 and 7.3.x below 7.3.6 it is possible to supply it with data what will cause it to read past the allocated buffer. This may lead to information disclosure or crash.

Category

9.1
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.04% Top 25%
Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory debian.org Vendor Advisory debian.org Vendor Advisory redhat.com Vendor Advisory php.net
Affected: PHP Group PHP
Published at:
Updated at:

References

Link Tags
https://bugs.php.net/bug.php?id=77988 vendor advisory mailing list exploit
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00029.html vendor advisory third party advisory mailing list
https://access.redhat.com/errata/RHSA-2019:2519 third party advisory vendor advisory
https://seclists.org/bugtraq/2019/Sep/35 third party advisory mailing list
https://www.debian.org/security/2019/dsa-4527 third party advisory vendor advisory
https://www.debian.org/security/2019/dsa-4529 third party advisory vendor advisory
https://seclists.org/bugtraq/2019/Sep/38 third party advisory mailing list
https://access.redhat.com/errata/RHSA-2019:3299 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2019-11040?
CVE-2019-11040 has been scored as a critical severity vulnerability.
How to fix CVE-2019-11040?
To fix CVE-2019-11040, 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-2019-11040 being actively exploited in the wild?
It is possible that CVE-2019-11040 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2019-11040?
CVE-2019-11040 affects PHP Group PHP.
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