NULL pointer dereference in Imagemagick
CVE-2018-16749
In ImageMagick 7.0.7-29 and earlier, a missing NULL check in ReadOneJNGImage in coders/png.c allows an attacker to cause a denial of service (WriteBlob assertion failure and application exit) via a crafted file.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.023 (82.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: +0.000
Affected products
- Imagemagick
- Canonical Ubuntu Linux — versions 14.04, 16.04, 18.04
- Debian Linux — versions 8.0, 9.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/ImageMagick/ImageMagick6/commit/1007b98f8795ad4bea6bc5f68a32d83e982f… (Patch, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2018/10/msg00002.html (mailing-list, Third Party Advisory)
- usn.ubuntu.com/3785-1/ (vendor-advisory, Third Party Advisory)
- github.com/ImageMagick/ImageMagick/issues/1119 (Exploit, Patch, Third Party Advisory, Issue Tracking)
- lists.debian.org/debian-lts-announce/2020/09/msg00007.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-16749?
- CVE-2018-16749 is a medium-severity vulnerability in Imagemagick, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2018-09-09.
- How severe is CVE-2018-16749?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2018-16749 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.