From: Slackware Security Team <security@slackware.com>
To: slackware-security@slackware.com
Subject: [slackware-security] groff (SSA:2026-271-01)
Date: Mon, 28 Sep 2026 15:26:25 -0700 (PDT)





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[slackware-security] groff (SSA:2026-271-01)

New groff packages are available for Slackware 15.0 and -current to
fix security issues.


Here are the details from the Slackware 15.0 ChangeLog:
+--------------------------+
patches/packages/groff-1.24.2-i586-1_slack15.0.txz: Upgraded.
This release corrects command injection security vulnerabilities
(CWE-78) in the mmroff, pdfmom, and pre-grohtml programs. The last of
these is a preprocessor that is run when groff or troff is run with the
`-T html` or `-T xhtml` options. The vulnerabilities are variously
14-26 years old. Malicious input can escape groff's default "safer"
mode, running commands embedded in that input at the user's privilege
level. The groff development team recommends this release to any users
who employ the named tools or GNU troff output formats with untrusted
inputs.
(* Security fix *)
+--------------------------+


Where to find the new packages:
+-----------------------------+

Thanks to the friendly folks at the OSU Open Source Lab
(http://osuosl.org) for donating FTP and rsync hosting
to the Slackware project! :-)

Also see the "Get Slack" section on http://slackware.com for
additional mirror sites near you.

Updated package for Slackware 15.0:
ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/groff-1.24.2-i586-1_slack15.0.txz

Updated package for Slackware x86_64 15.0:
ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/patches/packages/groff-1.24.2-x86_64-1_slack15.0.txz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/ap/groff-1.24.2-i686-1.txz

Updated package for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/ap/groff-1.24.2-x86_64-1.txz


MD5 signatures:
+-------------+

Slackware 15.0 package:
5b0814be7faa04c5a49b427284a3939c groff-1.24.2-i586-1_slack15.0.txz

Slackware x86_64 15.0 package:
08206f4da8fff6ff5f3b4ec6002709d0 groff-1.24.2-x86_64-1_slack15.0.txz

Slackware -current package:
ccb67b1b8ea71f73e782eaf583618cef ap/groff-1.24.2-i686-1.txz

Slackware x86_64 -current package:
095b89f3a0d615db6dda508ba34c7972 ap/groff-1.24.2-x86_64-1.txz


Installation instructions:
+------------------------+

Upgrade the package as root:
# upgradepkg groff-1.24.2-i586-1_slack15.0.txz


+-----+

Slackware Linux Security Team
http://slackware.com/gpg-key
security@slackware.com

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