Improper input validation in Graphicsmagick
CVE-2018-20189
In GraphicsMagick 1.3.31, the ReadDIBImage function of coders/dib.c has a vulnerability allowing a crash and denial of service via a dib file that is crafted to appear with direct pixel values and also colormapping (which is not available beyond 8-bits/sample), and therefore lacks indexes initialization.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.023 (82.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 82.4% 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
- Graphicsmagick — versions 1.3.31
- Debian Linux — versions 8.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/106227 (VDB Entry, Third Party Advisory, vdb-entry)
- sourceforge.net/p/graphicsmagick/bugs/585/ (Exploit, Third Party Advisory)
- hg.graphicsmagick.org/hg/GraphicsMagick/rev/648e2b406589 (Patch, Mailing List, Vendor Advisory)
- lists.debian.org/debian-lts-announce/2018/12/msg00018.html (mailing-list, Mailing List, Third Party Advisory)
- usn.ubuntu.com/4207-1/ (vendor-advisory)
- www.debian.org/security/2020/dsa-4640 (vendor-advisory)
Frequently asked questions
- What is CVE-2018-20189?
- CVE-2018-20189 is a medium-severity vulnerability in Graphicsmagick, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2018-12-17.
- How severe is CVE-2018-20189?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2018-20189 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.