CVE-2020-16307 — NULL Pointer Dereference in Ghostscript

CWE-476 — NULL Pointer DereferenceCWE-20 — Improper Input Validation9 documents8 sources
Severity
5.5MEDIUMNVD
EPSS
1.8%
top 17.31%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Artifex GhostscriptCanonical Ubuntu LinuxDebian Linux
Timeline
PublishedAug 13
Latest updateMay 24

Description

A null pointer dereference vulnerability in devices/vector/gdevtxtw.c and psi/zbfont.c of Artifex Software GhostScript v9.50 allows a remote attacker to cause a denial of service via a crafted postscript file. This is fixed in v9.51.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages2 packages

▶Debianartifex/ghostscript< 9.51~dfsg-1+3

Also affects: Debian Linux 10.0, 9.0, Ubuntu Linux 16.04, 18.04, 20.04

🔴Vulnerability Details

3
GHSA
GHSA-792h-j2jm-mf8x: A null pointer dereference vulnerability in devices/vector/gdevtxtw↗2022-05-24
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CVEList
CVE-2020-16307: A null pointer dereference vulnerability in devices/vector/gdevtxtw↗2020-08-13
▶
OSV
CVE-2020-16307: A null pointer dereference vulnerability in devices/vector/gdevtxtw↗2020-08-13
▶

📋Vendor Advisories

3
Ubuntu
Ghostscript vulnerabilities↗2020-08-24
▶
Red Hat
ghostscript: NULL pointer dereference in devices/vector/gdevtxtw.c and psi/zbfont.c could result in a DoS↗2020-08-13
▶
Debian
CVE-2020-16307: ghostscript - A null pointer dereference vulnerability in devices/vector/gdevtxtw.c and psi/zb...↗2020
▶

💬Community

2
Bugzilla
CVE-2020-16307 ghostscript: NULL pointer dereference vulnerability in devices/vector/gdevtxtw.c and psi/zbfont.c could result in a DoS via a crafted postscript file [fedora-all]↗2020-08-19
▶
Bugzilla
CVE-2020-16307 ghostscript: NULL pointer dereference in devices/vector/gdevtxtw.c and psi/zbfont.c could result in a DoS↗2020-08-19
▶
CVE-2020-16307 — NULL Pointer Dereference | cvebase