CVE-2021-43113: Improper Neutralization of Special Elements used in a Command ('Command Injection')

December 16, 2021 (updated March 27, 2023)

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.

References

github.com/advisories/GHSA-gv87-q66h-4277
github.com/itext/itext7/releases/tag/7.1.17
github.com/itext/itextpdf/releases/tag/5.5.13.3
lists.debian.org/debian-lts-announce/2023/01/msg00013.html
nvd.nist.gov/vuln/detail/CVE-2021-43113
pastebin.com/BXnkY9YY
www.debian.org/security/2023/dsa-5323

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