CVE-2020-16293 — NULL Pointer Dereference in Ghostscript

CWE-476 — NULL Pointer Dereference9 documents8 sources
Severity
5.5MEDIUMNVD
EPSS
1.3%
top 20.17%
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 compose_group_nonknockout_nonblend_isolated_allmask_common() in base/gxblend.c of Artifex Software GhostScript v9.50 allows a remote attacker to cause a denial of service via a crafted PDF 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-v94m-px3x-gg3c: A null pointer dereference vulnerability in compose_group_nonknockout_nonblend_isolated_allmask_common() in base/gxblend↗2022-05-24
▶
OSV
CVE-2020-16293: A null pointer dereference vulnerability in compose_group_nonknockout_nonblend_isolated_allmask_common() in base/gxblend↗2020-08-13
▶
CVEList
CVE-2020-16293: A null pointer dereference vulnerability in compose_group_nonknockout_nonblend_isolated_allmask_common() in base/gxblend↗2020-08-13
▶

📋Vendor Advisories

3
Ubuntu
Ghostscript vulnerabilities↗2020-08-24
▶
Red Hat
ghostscript: NULL pointer dereference in compose_group_nonknockout_nonblend_isolated_allmask_common() in base/gxblend.c could result in a DoS↗2020-08-13
▶
Debian
CVE-2020-16293: ghostscript - A null pointer dereference vulnerability in compose_group_nonknockout_nonblend_i...↗2020
▶

💬Community

2
Bugzilla
CVE-2020-16293 ghostscript: NULL pointer dereference vulnerability in compose_group_nonknockout_nonblend_isolated_allmask_common() in base/gxblend.c could result in a DoS via a crafted PDF file [fedor↗2020-08-19
▶
Bugzilla
CVE-2020-16293 ghostscript: NULL pointer dereference in compose_group_nonknockout_nonblend_isolated_allmask_common() in base/gxblend.c could result in a DoS↗2020-08-19
▶
CVE-2020-16293 — NULL Pointer Dereference | cvebase