6.5

CVE-2018-21015: debian debian_linux NULL Pointer Dereference

CVSS: 6.5v3.1MediumModified
AliasesUBUNTU-CVE-2018-21015DEBIAN-CVE-2018-21015
Published 16-09-2019Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-21015 is a medium (CVSS 6.5) NULL Pointer Dereference vulnerability in debian debian_linux. EPSS estimates a 1.38% chance of exploitation in the next 30 days, higher than 71.7% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
36/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
1.38%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 2
DLA-2072-1MGASA-2020-0137

Timeline

  1. 16-09-2019
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.38%

Chance of exploitation in the next 30 days

Percentile

72%

Versus all other CVEs

30-day change

0.00 pp

From 1.38% on 18-09-2026

18-09-202618-10-2026
EPSS score
1.38%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Gpac

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Debian3 products
  • ccextractorAll versions (No fix recorded)
  • gpac< 1.0.1+dfsg1-2
  • debian_linuxEOL8.0
Ubuntu2 products
  • ccextractorAll versions (No fix recorded)
  • gpacAll versions (No fix recorded)
Gpac1 product

3 vendors · 6 products

References

5 links