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-rw-r--r--gnu/packages/patches/texlive-bin-CVE-2018-17407.patch249
1 files changed, 249 insertions, 0 deletions
diff --git a/gnu/packages/patches/texlive-bin-CVE-2018-17407.patch b/gnu/packages/patches/texlive-bin-CVE-2018-17407.patch
new file mode 100644
index 0000000000..63646d420c
--- /dev/null
+++ b/gnu/packages/patches/texlive-bin-CVE-2018-17407.patch
@@ -0,0 +1,249 @@
+This patch adds support for newer versions of Poppler and some upstream
+TexLive fixes, including one for CVE-2018-17407.
+
+It is taken from Linux From Scratch:
+<http://www.linuxfromscratch.org/patches/blfs/svn/texlive-20180414-source-upstream_fixes-3.patch>.
+
+Submitted By: Ken Moffat <ken at linuxfromscratch dot org>
+Date: 2018-12-26
+Initial Package Version: 20180414
+Upstream Status: Applied
+Origin: Upstream
+Description: Two fixes, cherry-picked from svn plus a CVE fix.
+I have removed the partial fixes for various system versions of poppler.
+
+r47469 Fix segfault in dvipdfm-x (XeTeX) on 1/2/4-bit transparent indexed PNGs.
+
+r47477 Fix a ptex regression for discontinuous kinsoku table.
+
+Also, via fedora (I got lost in svn) a critical fix for CVE-2018-17407
+
+"A buffer overflow in the handling of Type 1 fonts allows arbitrary code
+execution when a malicious font is loaded by one of the vulnerable tools:
+pdflatex, pdftex, dvips, or luatex."
+
+diff -Naur a/texk/dvipdfm-x/pngimage.c b/texk/dvipdfm-x/pngimage.c
+--- a/texk/dvipdfm-x/pngimage.c 2018-02-17 08:41:35.000000000 +0000
++++ b/texk/dvipdfm-x/pngimage.c 2018-10-09 01:52:01.648670875 +0100
+@@ -964,12 +964,16 @@
+ png_bytep trans;
+ int num_trans;
+ png_uint_32 i;
++ png_byte bpc, mask, shift;
+
+ if (!png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS) ||
+ !png_get_tRNS(png_ptr, info_ptr, &trans, &num_trans, NULL)) {
+ WARN("%s: PNG does not have valid tRNS chunk but tRNS is requested.", PNG_DEBUG_STR);
+ return NULL;
+ }
++ bpc = png_get_bit_depth(png_ptr, info_ptr);
++ mask = 0xff >> (8 - bpc);
++ shift = 8 - bpc;
+
+ smask = pdf_new_stream(STREAM_COMPRESS);
+ dict = pdf_stream_dict(smask);
+@@ -981,7 +985,8 @@
+ pdf_add_dict(dict, pdf_new_name("ColorSpace"), pdf_new_name("DeviceGray"));
+ pdf_add_dict(dict, pdf_new_name("BitsPerComponent"), pdf_new_number(8));
+ for (i = 0; i < width*height; i++) {
+- png_byte idx = image_data_ptr[i];
++ /* data is packed for 1/2/4 bpc formats, msb first */
++ png_byte idx = (image_data_ptr[bpc * i / 8] >> (shift - bpc * i % 8)) & mask;
+ smask_data_ptr[i] = (idx < num_trans) ? trans[idx] : 0xff;
+ }
+ pdf_add_stream(smask, (char *)smask_data_ptr, width*height);
+diff -Naur a/texk/dvipsk/writet1.c b/texk/dvipsk/writet1.c
+--- a/texk/dvipsk/writet1.c 2016-11-25 18:24:26.000000000 +0000
++++ b/texk/dvipsk/writet1.c 2018-10-09 01:52:01.648670875 +0100
+@@ -1449,7 +1449,9 @@
+ *(strend(t1_buf_array) - 1) = ' ';
+
+ t1_getline();
++ alloc_array(t1_buf, strlen(t1_line_array) + strlen(t1_buf_array) + 1, T1_BUF_SIZE);
+ strcat(t1_buf_array, t1_line_array);
++ alloc_array(t1_line, strlen(t1_buf_array) + 1, T1_BUF_SIZE);
+ strcpy(t1_line_array, t1_buf_array);
+ t1_line_ptr = eol(t1_line_array);
+ }
+diff -Naur a/texk/web2c/luatexdir/font/writet1.w b/texk/web2c/luatexdir/font/writet1.w
+--- a/texk/web2c/luatexdir/font/writet1.w 2016-11-25 18:24:34.000000000 +0000
++++ b/texk/web2c/luatexdir/font/writet1.w 2018-10-09 01:52:01.648670875 +0100
+@@ -1625,7 +1625,9 @@
+ if (sscanf(p, "%i", &i) != 1) {
+ strcpy(t1_buf_array, t1_line_array);
+ t1_getline();
++ alloc_array(t1_buf, strlen(t1_line_array) + strlen(t1_buf_array) + 1, T1_BUF_SIZE);
+ strcat(t1_buf_array, t1_line_array);
++ alloc_array(t1_line, strlen(t1_buf_array) + 1, T1_BUF_SIZE);
+ strcpy(t1_line_array, t1_buf_array);
+ t1_line_ptr = eol(t1_line_array);
+ }
+diff -Naur a/texk/web2c/luatexdir/image/pdftoepdf.w b/texk/web2c/luatexdir/image/pdftoepdf.w
+--- a/texk/web2c/luatexdir/image/pdftoepdf.w 2018-01-17 18:00:12.000000000 +0000
++++ b/texk/web2c/luatexdir/image/pdftoepdf.w 2018-10-09 01:52:01.648670875 +0100
+@@ -472,10 +472,10 @@
+ break;
+ */
+ case objString:
+- copyString(pdf, obj->getString());
++ copyString(pdf, (GooString *)obj->getString());
+ break;
+ case objName:
+- copyName(pdf, obj->getName());
++ copyName(pdf, (char *)obj->getName());
+ break;
+ case objNull:
+ pdf_add_null(pdf);
+diff -Naur a/texk/web2c/luatexdir/lua/lepdflib.cc b/texk/web2c/luatexdir/lua/lepdflib.cc
+--- a/texk/web2c/luatexdir/lua/lepdflib.cc 2018-02-14 14:44:38.000000000 +0000
++++ b/texk/web2c/luatexdir/lua/lepdflib.cc 2018-10-09 01:52:01.649670868 +0100
+@@ -674,7 +674,7 @@
+ uin = (udstruct *) luaL_checkudata(L, 1, M_##in); \
+ if (uin->pd != NULL && uin->pd->pc != uin->pc) \
+ pdfdoc_changed_error(L); \
+- gs = ((in *) uin->d)->function(); \
++ gs = (GooString *)((in *) uin->d)->function(); \
+ if (gs != NULL) \
+ lua_pushlstring(L, gs->getCString(), gs->getLength()); \
+ else \
+@@ -1813,7 +1813,7 @@
+ if (uin->pd != NULL && uin->pd->pc != uin->pc)
+ pdfdoc_changed_error(L);
+ if (((Object *) uin->d)->isString()) {
+- gs = ((Object *) uin->d)->getString();
++ gs = (GooString *)((Object *) uin->d)->getString();
+ lua_pushlstring(L, gs->getCString(), gs->getLength());
+ } else
+ lua_pushnil(L);
+diff -Naur a/texk/web2c/pdftexdir/writet1.c b/texk/web2c/pdftexdir/writet1.c
+--- a/texk/web2c/pdftexdir/writet1.c 2016-11-25 18:24:37.000000000 +0000
++++ b/texk/web2c/pdftexdir/writet1.c 2018-10-09 01:52:01.649670868 +0100
+@@ -1598,7 +1598,9 @@
+ *(strend(t1_buf_array) - 1) = ' ';
+
+ t1_getline();
++ alloc_array(t1_buf, strlen(t1_line_array) + strlen(t1_buf_array) + 1, T1_BUF_SIZE);
+ strcat(t1_buf_array, t1_line_array);
++ alloc_array(t1_line, strlen(t1_buf_array) + 1, T1_BUF_SIZE);
+ strcpy(t1_line_array, t1_buf_array);
+ t1_line_ptr = eol(t1_line_array);
+ }
+diff -Naur a/texk/web2c/ptexdir/ptex_version.h b/texk/web2c/ptexdir/ptex_version.h
+--- a/texk/web2c/ptexdir/ptex_version.h 2018-01-21 03:48:06.000000000 +0000
++++ b/texk/web2c/ptexdir/ptex_version.h 2018-10-09 01:52:01.649670868 +0100
+@@ -1 +1 @@
+-#define PTEX_VERSION "p3.8.0"
++#define PTEX_VERSION "p3.8.1"
+diff -Naur a/texk/web2c/ptexdir/tests/free_ixsp.tex b/texk/web2c/ptexdir/tests/free_ixsp.tex
+--- a/texk/web2c/ptexdir/tests/free_ixsp.tex 1970-01-01 01:00:00.000000000 +0100
++++ b/texk/web2c/ptexdir/tests/free_ixsp.tex 2018-10-09 01:52:01.649670868 +0100
+@@ -0,0 +1,53 @@
++%#!eptex -ini -etex
++\let\dump\relax
++\batchmode
++\input plain
++
++\errorstopmode
++\catcode`@=11
++\newcount\@tempcnta
++\newcount\@tempcntb
++\newcount\@tempcntc
++\mathchardef\LIM=256
++
++\def\MYCHAR#1{%
++ \@tempcntc=\numexpr7*#1+"101\relax
++ \@tempcnta=\@tempcntc\divide\@tempcnta 94
++ \@tempcntb=\numexpr\@tempcntc-94*\@tempcnta+1\relax
++ \ifnum\@tempcntb<0\advance\@tempcntb94 \advance\@tempcnta-1\fi
++ \advance\@tempcnta18 % 18区以降
++ \CNTA=\kuten\numexpr"100*\@tempcnta+\@tempcntb\relax
++}
++
++\newcount\CNT\newcount\CNTA
++\CNT=0
++\loop
++ \MYCHAR\CNT
++ \message{\the\CNT.}
++ \inhibitxspcode\CNTA=1\relax
++ \advance\CNT1\relax
++ \ifnum\CNT<\LIM
++\repeat
++
++\newcount\CNTB
++
++\loop
++ \MYCHAR\CNTB
++ \global\inhibitxspcode\CNTA=3
++{%
++\CNT=0
++\loop
++ \MYCHAR\CNT
++ \count@=\numexpr 1-\inhibitxspcode\CNTA\relax
++ \ifnum\count@=0\else\ifnum\CNTB=\CNT\else
++ \errmessage{<\the\CNTB, \the\CNT, \the\inhibitxspcode\CNTA>}\fi\fi
++ \advance\CNT1\relax
++ \ifnum\CNT<\LIM
++\repeat
++}
++ \MYCHAR\CNTB
++ \global\inhibitxspcode\CNTA=1\relax
++ \advance\CNTB1\relax
++ \ifnum\CNTB<\LIM
++\repeat
++\bye
+diff -Naur a/texk/web2c/ptexdir/tests/free_pena.tex b/texk/web2c/ptexdir/tests/free_pena.tex
+--- a/texk/web2c/ptexdir/tests/free_pena.tex 1970-01-01 01:00:00.000000000 +0100
++++ b/texk/web2c/ptexdir/tests/free_pena.tex 2018-10-09 01:52:01.649670868 +0100
+@@ -0,0 +1,52 @@
++%#!eptex -ini -etex
++\let\dump\relax
++\batchmode
++\input plain
++
++\errorstopmode
++\catcode`@=11
++\newcount\@tempcnta
++\newcount\@tempcntb
++\newcount\@tempcntc
++\mathchardef\LIM=256
++
++\def\MYCHAR#1{%
++ \@tempcntc=\numexpr7*#1+"101\relax
++ \@tempcnta=\@tempcntc\divide\@tempcnta 94
++ \@tempcntb=\numexpr\@tempcntc-94*\@tempcnta+1\relax
++ \ifnum\@tempcntb<0\advance\@tempcntb94 \advance\@tempcnta-1\fi
++ \advance\@tempcnta18 % 18区以降
++ \CNTA=\kuten\numexpr"100*\@tempcnta+\@tempcntb\relax
++}
++
++\newcount\CNT\newcount\CNTA
++\CNT=0
++\loop
++ \MYCHAR\CNT
++ \message{\the\CNT.}
++ \prebreakpenalty\CNTA=\numexpr\CNT+1\relax
++ \advance\CNT1\relax
++ \ifnum\CNT<\LIM
++\repeat
++
++\newcount\CNTB
++
++\loop
++ \MYCHAR\CNTB
++ \global\prebreakpenalty\CNTA=0
++{%
++\CNT=0
++\loop
++ \MYCHAR\CNT
++ \count@=\numexpr -\CNT-1+\prebreakpenalty\CNTA\relax
++ \ifnum\count@=0\else\ifnum\CNTB=\CNT\else\errmessage{<\the\CNTB, \the\CNT>}\fi\fi
++ \advance\CNT1\relax
++ \ifnum\CNT<\LIM
++\repeat
++}
++ \MYCHAR\CNTB
++ \global\prebreakpenalty\CNTA=\numexpr\CNTB+1\relax
++ \advance\CNTB1\relax
++ \ifnum\CNTB<\LIM
++\repeat
++\bye
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