CVE-2019-11039

Public Exploit
Out-of-bounds read in iconv.c

Description

Function iconv_mime_decode_headers() 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 may perform out-of-buffer read due to integer overflow when parsing MIME headers. This may lead to information disclosure or crash.

Category

9.1
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.75% Top 30%
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=78069 exploit patch vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00029.html mailing list third party advisory vendor advisory
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-2019-11039?
CVE-2019-11039 has been scored as a critical severity vulnerability.
How to fix CVE-2019-11039?
To fix CVE-2019-11039, 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-2019-11039 being actively exploited in the wild?
It is possible that CVE-2019-11039 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-2019-11039?
CVE-2019-11039 affects PHP Group PHP.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.