What is CVE-2018-6405?

CVE-2018-6405 is a medium-severity vulnerability in Imagemagick, classified under Missing Release of Resource after Effective Lifetime. CVSS score: 6.5/10. Published 2018-01-30.

How severe is CVE-2018-6405?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2018-6405 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Imagemagick

CVE-2018-6405

In the ReadDCMImage function in coders/dcm.c in ImageMagick before 7.0.7-23, each redmap, greenmap, and bluemap variable can be overwritten by a new pointer. The previous pointer is lost, which leads to a memory leak. This allows remote attackers to cause a denial of service.

EPSS: 0.017 (74.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Imagemagick
Canonical Ubuntu_linux — versions 14.04, 16.04, 17.10
N/a — versions n/a

Weakness classification (CWE)

CWE-772 — Missing Release of Resource after Effective Lifetime

Public proof-of-concept exploits

References

cve@mitre.org (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
cve@mitre.org (x_refsource_CONFIRM, Exploit, Patch, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2018-6405?: CVE-2018-6405 is a medium-severity vulnerability in Imagemagick, classified under Missing Release of Resource after Effective Lifetime. CVSS score: 6.5/10. Published 2018-01-30.
How severe is CVE-2018-6405?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2018-6405 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.