Dear Maintainer,

I have discovered a stack-based buffer overflow in steghide 0.5.1.
The issue is in src/Embedder.cc where 'sprintf' is used unsafely.

I have published a full analysis and Proof of Concept here:
https://github.com/ErikDervishi03/steghide-buffer-overflow-poc

I have also requested a CVE for this issue.

Best regards,
Erik Dervishi

Hello,

Bug #1125714 in steghide reported by you has been fixed in the
Git repository and is awaiting an upload. You can see the commit
message below and you can check the diff of the fix at:

https://salsa.debian.org/pkg-security-team/steghide/-/commit/fb01054415b16d6d738f8c90611584f4c188ce57
------------------------------------------------------------------------
d/p/*: Add patch fixing stack-based buffer overflow in Embedder.cc.

Closes: #1125714
------------------------------------------------------------------------

(this message was generated automatically)
-- 
Greetings

https://bugs.debian.org/1125714

We believe that the bug you reported is fixed in the latest version of
steghide, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1125714@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Sven Geuer <sge@debian.org> (supplier of updated steghide package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Tue, 23 Jun 2026 17:12:29 +0200
Source: steghide
Architecture: source
Version: 0.5.1+git20240220-2
Distribution: unstable
Urgency: medium
Maintainer: Debian Security Tools <team+pkg-security@tracker.debian.org>
Changed-By: Sven Geuer <sge@debian.org>
Closes: 1119575 1125714
Changes:
 steghide (0.5.1+git20240220-2) unstable; urgency=medium
 .
   * Team upload.
 .
   [ Sven Geuer ]
   * d/p/*: Add patch to keep CXXFLAGS untouched by upstreams build system.
     (Closes: #1119575)
   * d/p/*: Add patch fixing stack-based buffer overflow in Embedder.cc.
     (Closes: #1125714)
   * d/s/lintian-overrides: Removed, not needed anymore.
 .
   [ Alexandre Detiste ]
   * drop "Rules-Requires-Root: binary-targets", not needed anymore
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