CVE-2019-17178

Name: CVE-2019-17178
Creator: NVD / NIST
Published: 2019-10-04T17:15:10.067+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 2.58%

Last modified Jun 17, 2026

CVE-2019-17178 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. HuffmanTree_makeFromFrequencies in lodepng.c in LodePNG through 2019-09-28, as used in WinPR in FreeRDP and other products, has a memory leak because a supplied realloc pointer (i.e., the first argument to realloc) is also used for a realloc return value.. EPSS estimates a 2.58% chance of exploitation in the next 30 days.

Description

HuffmanTree_makeFromFrequencies in lodepng.c in LodePNG through 2019-09-28, as used in WinPR in FreeRDP and other products, has a memory leak because a supplied realloc pointer (i.e., the first argument to realloc) is also used for a realloc return value.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

2.58%

83.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Freerdp	Freerdp	<= 1.0.2	—
Freerdp	Freerdp	1.1.0	Beta1
Lodev	Lodepng	<= 2019-09-28	—
Opensuse	Leap	15.0	—
Opensuse	Leap	15.1	—

References

http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00004.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00005.htmlThird Party Advisory
https://github.com/FreeRDP/FreeRDP/commit/9fee4ae076b1ec97b97efb79ece08d1dab4df29aPatch, Vendor Advisory
https://github.com/FreeRDP/FreeRDP/issues/5645Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00004.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00005.htmlThird Party Advisory
https://github.com/FreeRDP/FreeRDP/commit/9fee4ae076b1ec97b97efb79ece08d1dab4df29aPatch, Vendor Advisory
https://github.com/FreeRDP/FreeRDP/issues/5645Third Party Advisory

Timeline

Published: Oct 4, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-17178?

How severe is CVE-2019-17178?

CVE-2019-17178 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.58% probability of exploitation in the next 30 days.

How do I fix CVE-2019-17178?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-17178?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST