https://sources.debian.org/data/main/a/a2ps/1:4.14-2/debian/patches/fix-format-security.diff

Index: b/lib/psgen.c
===================================================================
--- a/lib/psgen.c
+++ b/lib/psgen.c
@@ -232,7 +232,7 @@
     default:
       *buf = '\0';
       ps_escape_char (job, cp[i], buf);
-      output (jdiv, (char *) buf);
+      output (jdiv, "%s", (char *) buf);
       break;
     }
   }
Index: b/lib/output.c
===================================================================
--- a/lib/output.c
+++ b/lib/output.c
@@ -525,7 +525,7 @@
 		     expand_user_string (job, FIRST_FILE (job),
 					 (const uchar *) "Expand: requirement",
 					 (const uchar *) token));
-	output (dest, expansion);
+	output (dest, "%s", expansion);
 	continue;
       }
 
Index: b/lib/parseppd.y
===================================================================
--- a/lib/parseppd.y
+++ b/lib/parseppd.y
@@ -154,7 +154,7 @@
 void
 yyerror (const char *msg)
 {
-  error_at_line (1, 0, ppdfilename, ppdlineno, msg);
+  error_at_line (1, 0, ppdfilename, ppdlineno, "%s", msg);
 }
 
 /*
Index: b/src/parsessh.y
===================================================================
--- a/src/parsessh.y
+++ b/src/parsessh.y
@@ -740,7 +740,7 @@
 void
 yyerror (const char *msg)
 {
-  error_at_line (1, 0, sshfilename, sshlineno, msg);
+  error_at_line (1, 0, sshfilename, sshlineno, "%s", msg);
 }
 
 /*
Index: b/lib/parseppd.c
===================================================================
--- a/lib/parseppd.c
+++ b/lib/parseppd.c
@@ -1707,7 +1707,7 @@
 void
 yyerror (const char *msg)
 {
-  error_at_line (1, 0, ppdfilename, ppdlineno, msg);
+  error_at_line (1, 0, ppdfilename, ppdlineno, "%s", msg);
 }
 
 /*
Index: b/src/parsessh.c
===================================================================
--- a/src/parsessh.c
+++ b/src/parsessh.c
@@ -2639,7 +2639,7 @@
 void
 yyerror (const char *msg)
 {
-  error_at_line (1, 0, sshfilename, sshlineno, msg);
+  error_at_line (1, 0, sshfilename, sshlineno, "%s", msg);
 }
 
 /*
10ad93731deb553063edd70014755fe3146'>root</a>/<a href='/guix/log/gnu?id=ffcb110ad93731deb553063edd70014755fe3146'>gnu</a>/<a href='/guix/log/gnu/tests?id=ffcb110ad93731deb553063edd70014755fe3146'>tests</a>/<a href='/guix/log/gnu/tests/gdm.scm?id=ffcb110ad93731deb553063edd70014755fe3146'>gdm.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/tests/gdm.scm?id=ffcb110ad93731deb553063edd70014755fe3146&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2023-03-21 16:53:28 -0400'>2023-03-21</span></td><td><a href='/guix/commit/gnu/tests/gdm.scm?id=0c53cbcc5686ad54f41e54ca5137352a8e49323b'>tests: gdm: Remove tmpfs related tests.</a><span class='msg-avail'>...</span></td><td>Bruno Victal</td></tr>
<tr><td><span title='2022-12-04 23:12:36 +0100'>2022-12-04</span></td><td><a href='/guix/commit/gnu/tests/gdm.scm?id=b2a848d23d37f31496e1ff664f1dcf6abcdcc388'>tests: Add gdm tests.</a><span class='msg-avail'>...</span></td><td>Bruno Victal</td></tr>