Fix CVE-2008-2149: buffer overflows by limiting the length of the string in sprintf
format string
Closes: #481186 (CVE-2008-2149)
Please note: The WordNet code contains several other occurences of potentially
exploitable functions like strcpy()/strcat()/...  and so even if there are no
known exploits the code needs a full security audit.

--- a/src/wn.c
+++ b/src/wn.c
@@ -206,7 +206,8 @@ static int searchwn(int ac, char *av[])
 		    outsenses += do_search(av[1], optptr->pos, optptr->search,
 					    whichsense, optptr->label);
 	    } else {
-		sprintf(tmpbuf, "wn: invalid search option: %s\n", av[j]);
+		/* Fix CVE-2008-2149: buffer overflows Andreas Tille <tille@debian.org> */
+		sprintf(tmpbuf, "wn: invalid search option: %.200s\n", av[j]);
 		display_message(tmpbuf);
 		errcount++;
 	    }
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<tr><td><span title='2023-07-19 10:38:15 -0400'>2023-07-19</span></td><td><a href='/guix/commit/gnu/tests/vnc.scm?id=1edbadc6b49adda050a87057e6501c961888d7bb'>tests: xvnc: Fix 'gdm auto-suspend is disabled' test.</a><span class='msg-avail'>...<span class='msg-tooltip'>This failure is another collateral from commit a09c7da ("tests: Fork and exec
a new Guile for the marionette REPL."), which isolated the marionette
evaluation environment from that of the host.

* gnu/tests/vnc.scm (run-xvnc-test): Move the (guix build utils) import to...
["gdm auto-suspend is disabled"]: ... inside the marionette-eval of this
test.  Complete comment.

Reported-by: Bruno Victal &lt;mirai@makinata.eu&gt;
</span></span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2023-07-19 10:38:15 -0400'>2023-07-19</span></td><td><a href='/guix/commit/gnu/tests/vnc.scm?id=95424292993551854fb7373cef997fd39340ea4b'>tests: xvnc: Group up GDM test and use GNU Ocrad instead of Tesseract.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/tests/vnc.scm (run-xvnc-test): Group up GDM test.  Use GNU Ocrad.

Signed-off-by: Maxim Cournoyer &lt;maxim.cournoyer@gmail.com&gt;
Modified-by: Maxim Cournoyer &lt;maxim.cournoyer@gmail.com&gt;
</span></span></td><td>Bruno Victal</td></tr>
<tr><td><span title='2022-10-07 15:08:05 -0400'>2022-10-07</span></td><td><a href='/guix/commit/gnu/tests/vnc.scm?id=0169aee33e154c1fa8b299c7f126f3e94a8dc9a4'>tests: xvnc: Do not use specification-&gt;package in OS definition.</a><span class='msg-avail'>...<span class='msg-tooltip'>Doing so would cause the extra package dependencies to not be
correctly registered as dependencies, which would lead to a silent
failure when attempting to load or byte compile the module at the time
guix build itself (e.g., when running 'guix pull').

* gnu/tests/vnc.scm (%xvnc-os) [packages]: Turn the the
specification-&gt;package declaration into a list of package objects.
</span></span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2022-10-07 15:07:48 -0400'>2022-10-07</span></td><td><a href='/guix/commit/gnu/tests/vnc.scm?id=00e843050012961e9cc41b003ea9271eab718541'>Revert "Revert "services: Add xvnc-service-type.""</a><span class='msg-avail'>...<span class='msg-tooltip'>This reverts commit 0c4966160054bc50e6ab3a4ac9c9a6a1826ab5a0.  The fix appears
in the subsequent commit, for clarity.
</span></span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2022-10-07 12:53:22 -0400'>2022-10-07</span></td><td><a href='/guix/commit/gnu/tests/vnc.scm?id=0c4966160054bc50e6ab3a4ac9c9a6a1826ab5a0'>Revert "services: Add xvnc-service-type."</a><span class='msg-avail'>...<span class='msg-tooltip'>This reverts commit 1c528a95cb92b7808e6603d7956185005583629f.  This broke
'guix pull', for (yet) unknown reasons.
</span></span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2022-10-07 10:11:13 -0400'>2022-10-07</span></td><td><a href='/guix/commit/gnu/tests/vnc.scm?id=1c528a95cb92b7808e6603d7956185005583629f'>services: Add xvnc-service-type.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/services/vnc.scm: New file.
* gnu/tests/vnc.scm: Likewise.
* gnu/local.mk: Register them.
</span></span></td><td>Maxim Cournoyer</td></tr>