CVE-2018-21015

Name: CVE-2018-21015
Creator: NVD / NIST
Published: 2019-09-16T13:15:11.417+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 1.38%

Last modified Jun 17, 2026

CVE-2018-21015 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. AVC_DuplicateConfig() at isomedia/avc_ext.c in GPAC 0.7.1 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted file. There is "cfg_new->AVCLevelIndication = cfg->AVCLevelIndication;" but cfg could be NULL.. EPSS estimates a 1.38% chance of exploitation in the next 30 days.

Description

AVC_DuplicateConfig() at isomedia/avc_ext.c in GPAC 0.7.1 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted file. There is "cfg_new->AVCLevelIndication = cfg->AVCLevelIndication;" but cfg could be NULL.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

1.38%

68.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

Affected Software

Vendor	Product	Versions
Gpac	Gpac	0.7.1
Debian	Debian Linux	8.0

References

https://github.com/gpac/gpac/issues/1179Exploit, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/01/msg00017.htmlMailing List, Third Party Advisory
https://github.com/gpac/gpac/issues/1179Exploit, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/01/msg00017.htmlMailing List, Third Party Advisory

Timeline

Published: Sep 16, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-21015?

How severe is CVE-2018-21015?

CVE-2018-21015 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.38% probability of exploitation in the next 30 days.

How do I fix CVE-2018-21015?

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-2018-21015?

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

Scan your code now

Source: NVD / NIST