Home/CVE/A null pointer dereference vulnerability in compose_group_nonknockout_nonblend_isolated_allmask_common() in base/gxblend
CVE

CVE-2020-16293

A null pointer dereference vulnerability in compose_group_nonknockout_nonblend_isolated_allmask_common() in base/gxblend

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.

MEDIUM · CVSS 5.5 EPSS 0.00633
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-476NULL Pointer Dereference
▤

Affected Products & Versions

3
artifex ghostscript< 9.52
debian linuxall versions
canonical ubuntu linuxall versions
⚠

Public Exploits & PoCs

1
pocbugs.ghostscript.com · show_bug.cgi?id=701795bugs.ghostscript.com
▣

Scoring & Timeline

5.5
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD13 Aug 2020 · 03:15 AM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

2
rhsaRHSA-2021:1852Moderate
usnUSN-4469-1
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://git.ghostscript.com/?p=ghostpdl.git
https://lists.debian.org/debian-lts-announce/2020/08/msg00032.htmlMailing ListThird Party Advisory
https://security.gentoo.org/glsa/202008-20Third Party Advisory
https://usn.ubuntu.com/4469-1/Third Party Advisory
https://www.debian.org/security/2020/dsa-4748Third Party Advisory
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