Codebase list texlive-bin / 37e912c
Backport several security fixes. Norbert Preining 3 years ago
5 changed file(s) with 744 addition(s) and 0 deletion(s). Raw diff Collapse all Expand all
+7
-0
debian/changelog less more
0 texlive-bin (2020.20200327.54578-7) unstable; urgency=medium
1
2 * Backport several security fixes for shell escape exploits in
3 xdvi, luatex, general write18 implementation.
4
5 -- Norbert Preining <norbert@preining.info> Sat, 13 Mar 2021 09:31:55 +0900
6
07 texlive-bin (2020.20200327.54578-6) unstable; urgency=medium
18
29 * Reduce B-D (Closes: #979607)
+3
-0
debian/patches/series less more
1919 dvi2tty_man.diff
2020 detex_man.diff
2121 axohelp_man.diff
22 upstream-xdvi-shell-escape
23 upstream-svn58283-disable-pipe-write18
24 upstream-svn58292-various-luatex-sec-fixes
+26
-0
debian/patches/upstream-svn58283-disable-pipe-write18 less more
0 ---
1 texk/web2c/lib/texmfmp.c | 12 +++++++++++-
2 1 file changed, 11 insertions(+), 1 deletion(-)
3
4 --- a/texk/web2c/lib/texmfmp.c
5 +++ b/texk/web2c/lib/texmfmp.c
6 @@ -606,8 +606,18 @@ runsystem (const char *cmd)
7
8 if (allow == 1)
9 status = system (cmd);
10 - else if (allow == 2)
11 + else if (allow == 2) {
12 +/*
13 + command including a character '|' is not allowed in
14 + restricted mode for security.
15 +*/
16 + size_t k;
17 + for (k = 0; k < strlen (safecmd); k++) {
18 + if (safecmd[k] == '|')
19 + return 0;
20 + }
21 status = system (safecmd);
22 + }
23
24 /* Not really meaningful, but we have to manage the return value of system. */
25 if (status != 0)
+685
-0
debian/patches/upstream-svn58292-various-luatex-sec-fixes less more
0 ---
1 texk/web2c/luatexdir/lua/luatex-core.c | 626 +++++-----
2 texk/web2c/luatexdir/lua/luatex-core.lua | 3
3 texk/web2c/luatexdir/luafontloader/fontforge/fontforge/splinefont.c | 10
4 3 files changed, 326 insertions(+), 313 deletions(-)
5
6 --- a/texk/web2c/luatexdir/lua/luatex-core.lua
7 +++ b/texk/web2c/luatexdir/lua/luatex-core.lua
8 @@ -198,6 +198,9 @@ if saferoption == 1 or shellescape ~= 1
9 package.searchers[4] = nil
10 package.searchers[3] = nil
11
12 + if os.setenv then
13 + os.setenv = function(...) end
14 + end
15 ffi = require('ffi')
16
17 if ffi then
18 --- a/texk/web2c/luatexdir/luafontloader/fontforge/fontforge/splinefont.c
19 +++ b/texk/web2c/luatexdir/luafontloader/fontforge/fontforge/splinefont.c
20 @@ -246,6 +246,12 @@ char *Decompress(char *name, int compres
21 char buf[1500];
22 char *tmpfile;
23
24 + if ( strchr(name,'$') || strchr(name,'!') || strchr(name,'*') || strchr(name,'?')
25 + || strchr(name,'[') || strchr(name,'[') || strchr(name,']') || strchr(name,']')
26 + || strchr(name,';') || strchr(name,'&') || strchr(name,'>') || strchr(name,'<')
27 + || strchr(name,'`') || strchr(name,'"') || strchr(name,'|') || strchr(name,'\'')
28 + || strchr(name,'\\'))
29 +return( NULL );
30 if ( dir==NULL ) dir = P_tmpdir;
31 tmpfile = galloc(strlen(dir)+strlen(GFileNameTail(name))+2);
32 strcpy(tmpfile,dir);
33 @@ -253,9 +259,9 @@ char *Decompress(char *name, int compres
34 strcat(tmpfile,GFileNameTail(name));
35 *strrchr(tmpfile,'.') = '\0';
36 #if defined( _NO_SNPRINTF ) || defined( __VMS )
37 - sprintf( buf, "%s < %s > %s", compressors[compression].decomp, name, tmpfile );
38 + sprintf( buf, "%s < \"%s\" > \"%s\"", compressors[compression].decomp, name, tmpfile );
39 #else
40 - snprintf( buf, sizeof(buf), "%s < %s > %s", compressors[compression].decomp, name, tmpfile );
41 + snprintf( buf, sizeof(buf), "%s < \"%s\" > \"%s\"", compressors[compression].decomp, name, tmpfile );
42 #endif
43 if ( system(buf)==0 )
44 return( tmpfile );
45 --- a/texk/web2c/luatexdir/lua/luatex-core.c
46 +++ b/texk/web2c/luatexdir/lua/luatex-core.c
47 @@ -356,321 +356,325 @@ int load_luatex_core_lua (lua_State * L)
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681 };
682 return luaL_dostring(L, (const char*) luatex_core_lua);
683 }
684 \ No newline at end of file
+23
-0
debian/patches/upstream-xdvi-shell-escape less more
0 ---
1 texk/xdvik/string-utils.c | 3 ++-
2 1 file changed, 2 insertions(+), 1 deletion(-)
3
4 --- a/texk/xdvik/string-utils.c
5 +++ b/texk/xdvik/string-utils.c
6 @@ -636,7 +636,7 @@ canonicalize_path(const char *path)
7 }
8
9 /* Escape all of the following characters in str:
10 - ` \ ; ( )
11 + ` \ ; ( ) &
12 making it safe to pass str to a shell. Return result in a newly
13 allocated string, which the caller is responsible to free() after use.
14 */
15 @@ -653,6 +653,7 @@ shell_escape_string(const char *str)
16 || *src_ptr == '`'
17 || *src_ptr == '('
18 || *src_ptr == ')'
19 + || *src_ptr == '&'
20 || *src_ptr == ';') {
21 #if 0
22 /* only if not yet escaped? */