Use After Free in Artifex Ghostscript
CVE-2020-16303
A use-after-free vulnerability in xps_finish_image_path() in devices/vector/gdevxps.c of Artifex Software GhostScript v9.50 allows a remote attacker to escalate privileges via a crafted PDF file. This is fixed in v9.51.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.018 (77.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 77.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: +0.000
Affected products
- Artifex Ghostscript — versions 9.50
- Canonical Ubuntu Linux — versions 16.04, 18.04, 20.04
- Debian Linux — versions 9.0, 10.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugs.ghostscript.com/show_bug.cgi (Exploit, Issue Tracking, Vendor Advisory)
- git.ghostscript.com/
- lists.debian.org/debian-lts-announce/2020/08/msg00032.html (mailing-list, Mailing List, Third Party Advisory)
- www.debian.org/security/2020/dsa-4748 (vendor-advisory, Third Party Advisory)
- security.gentoo.org/glsa/202008-20 (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4469-1/ (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-16303?
- CVE-2020-16303 is a high-severity vulnerability in Artifex Ghostscript, classified under Use After Free. CVSS score: 7.8/10. Published 2020-08-13.
- How severe is CVE-2020-16303?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2020-16303 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.