CVE-2021-43113

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 5.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-12-15 · updated 2026-06-17
Weakness: CWE-77

Description

iTextPDF in iText 7 and up to (excluding 4.4.13.3) 7.1.17 allows command injection via a CompareTool filename that is mishandled on the gs (aka Ghostscript) command line in GhostscriptHelper.java.

Affected products

Debian Linux: 10.0, 11.0
Apryse iText: from 7.0.0 before 7.1.17 — fixed in 7.1.17

How to fix

Upgrade to a fixed version: Apryse iText 7.1.17. Check the vendor advisory for mitigations.

References

https://github.com/itext/itext7/releases/tag/7.1.17
https://github.com/itext/itextpdf/releases/tag/5.5.13.3
https://lists.debian.org/debian-lts-announce/2023/01/msg00013.html
https://pastebin.com/BXnkY9YY
https://www.debian.org/security/2023/dsa-5323
https://github.com/itext/itext7/releases/tag/7.1.17
https://github.com/itext/itextpdf/releases/tag/5.5.13.3
https://lists.debian.org/debian-lts-announce/2023/01/msg00013.html
https://pastebin.com/BXnkY9YY
https://www.debian.org/security/2023/dsa-5323

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