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-rw-r--r--patches/libmad-0.15.1b_pre.local.patch88
-rw-r--r--patches/libmad/libmad-0.15.1b-CVE-2017-8372_CVE-2017-8373_CVE-2017-8374.patch197
2 files changed, 285 insertions, 0 deletions
diff --git a/patches/libmad-0.15.1b_pre.local.patch b/patches/libmad-0.15.1b_pre.local.patch
new file mode 100644
index 00000000..12ce2f71
--- /dev/null
+++ b/patches/libmad-0.15.1b_pre.local.patch
@@ -0,0 +1,88 @@
+diff -ru libmad-0.15.1b.orig/configure libmad-0.15.1b/configure
+--- libmad-0.15.1b.orig/configure 2004-02-05 10:34:07.000000000 +0100
++++ libmad-0.15.1b/configure 2021-03-26 16:20:59.999840447 +0100
+@@ -19064,7 +19064,7 @@
+ shift
+ ;;
+ -O2)
+- optimize="-O"
++ optimize="-O2"
+ shift
+ ;;
+ -fomit-frame-pointer)
+@@ -19081,74 +19081,6 @@
+ esac
+ done
+
+-if test "$GCC" = yes
+-then
+- if test -z "$arch"
+- then
+- case "$host" in
+- i386-*) ;;
+- i?86-*) arch="-march=i486" ;;
+- arm*-empeg-*) arch="-march=armv4 -mtune=strongarm1100" ;;
+- armv4*-*) arch="-march=armv4 -mtune=strongarm" ;;
+- powerpc-*) ;;
+- mips*-agenda-*) arch="-mcpu=vr4100" ;;
+- mips*-luxsonor-*) arch="-mips1 -mcpu=r3000 -Wa,-m4010" ;;
+- esac
+- fi
+-
+- case "$optimize" in
+- -O|"-O "*)
+- optimize="-O"
+- optimize="$optimize -fforce-mem"
+- optimize="$optimize -fforce-addr"
+- : #x optimize="$optimize -finline-functions"
+- : #- optimize="$optimize -fstrength-reduce"
+- optimize="$optimize -fthread-jumps"
+- optimize="$optimize -fcse-follow-jumps"
+- optimize="$optimize -fcse-skip-blocks"
+- : #x optimize="$optimize -frerun-cse-after-loop"
+- : #x optimize="$optimize -frerun-loop-opt"
+- : #x optimize="$optimize -fgcse"
+- optimize="$optimize -fexpensive-optimizations"
+- optimize="$optimize -fregmove"
+- : #* optimize="$optimize -fdelayed-branch"
+- : #x optimize="$optimize -fschedule-insns"
+- optimize="$optimize -fschedule-insns2"
+- : #? optimize="$optimize -ffunction-sections"
+- : #? optimize="$optimize -fcaller-saves"
+- : #> optimize="$optimize -funroll-loops"
+- : #> optimize="$optimize -funroll-all-loops"
+- : #x optimize="$optimize -fmove-all-movables"
+- : #x optimize="$optimize -freduce-all-givs"
+- : #? optimize="$optimize -fstrict-aliasing"
+- : #* optimize="$optimize -fstructure-noalias"
+-
+- case "$host" in
+- arm*-*)
+- optimize="$optimize -fstrength-reduce"
+- ;;
+- mips*-*)
+- optimize="$optimize -fstrength-reduce"
+- optimize="$optimize -finline-functions"
+- ;;
+- i?86-*)
+- optimize="$optimize -fstrength-reduce"
+- ;;
+- powerpc-apple-*)
+- # this triggers an internal compiler error with gcc2
+- : #optimize="$optimize -fstrength-reduce"
+-
+- # this is really only beneficial with gcc3
+- : #optimize="$optimize -finline-functions"
+- ;;
+- *)
+- # this sometimes provokes bugs in gcc 2.95.2
+- : #optimize="$optimize -fstrength-reduce"
+- ;;
+- esac
+- ;;
+- esac
+-fi
+
+ case "$host" in
+ mips*-agenda-*)
+Only in libmad-0.15.1b.orig/: libmad-0.15.1b
diff --git a/patches/libmad/libmad-0.15.1b-CVE-2017-8372_CVE-2017-8373_CVE-2017-8374.patch b/patches/libmad/libmad-0.15.1b-CVE-2017-8372_CVE-2017-8373_CVE-2017-8374.patch
new file mode 100644
index 00000000..9cc8913e
--- /dev/null
+++ b/patches/libmad/libmad-0.15.1b-CVE-2017-8372_CVE-2017-8373_CVE-2017-8374.patch
@@ -0,0 +1,197 @@
+; You can calculate where the next frame will start depending on things
+; like the bitrate. See mad_header_decode(). It seems that when decoding
+; the frame you can go past that boundary. This attempts to catch those cases,
+; but might not catch all of them.
+; For more info see https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=508133
+Index: libmad-0.15.1b/layer12.c
+===================================================================
+--- a/layer12.c 2008-12-23 21:38:07.000000000 +0100
++++ b/layer12.c 2008-12-23 21:38:12.000000000 +0100
+@@ -134,6 +134,12 @@
+ for (sb = 0; sb < bound; ++sb) {
+ for (ch = 0; ch < nch; ++ch) {
+ nb = mad_bit_read(&stream->ptr, 4);
++ if (mad_bit_nextbyte(&stream->ptr) > stream->next_frame)
++ {
++ stream->error = MAD_ERROR_LOSTSYNC;
++ stream->sync = 0;
++ return -1;
++ }
+
+ if (nb == 15) {
+ stream->error = MAD_ERROR_BADBITALLOC;
+@@ -146,6 +152,12 @@
+
+ for (sb = bound; sb < 32; ++sb) {
+ nb = mad_bit_read(&stream->ptr, 4);
++ if (mad_bit_nextbyte(&stream->ptr) > stream->next_frame)
++ {
++ stream->error = MAD_ERROR_LOSTSYNC;
++ stream->sync = 0;
++ return -1;
++ }
+
+ if (nb == 15) {
+ stream->error = MAD_ERROR_BADBITALLOC;
+@@ -162,6 +174,12 @@
+ for (ch = 0; ch < nch; ++ch) {
+ if (allocation[ch][sb]) {
+ scalefactor[ch][sb] = mad_bit_read(&stream->ptr, 6);
++ if (mad_bit_nextbyte(&stream->ptr) > stream->next_frame)
++ {
++ stream->error = MAD_ERROR_LOSTSYNC;
++ stream->sync = 0;
++ return -1;
++ }
+
+ # if defined(OPT_STRICT)
+ /*
+@@ -187,6 +205,12 @@
+ frame->sbsample[ch][s][sb] = nb ?
+ mad_f_mul(I_sample(&stream->ptr, nb),
+ sf_table[scalefactor[ch][sb]]) : 0;
++ if (mad_bit_nextbyte(&stream->ptr) > stream->next_frame)
++ {
++ stream->error = MAD_ERROR_LOSTSYNC;
++ stream->sync = 0;
++ return -1;
++ }
+ }
+ }
+
+@@ -195,6 +219,12 @@
+ mad_fixed_t sample;
+
+ sample = I_sample(&stream->ptr, nb);
++ if (mad_bit_nextbyte(&stream->ptr) > stream->next_frame)
++ {
++ stream->error = MAD_ERROR_LOSTSYNC;
++ stream->sync = 0;
++ return -1;
++ }
+
+ for (ch = 0; ch < nch; ++ch) {
+ frame->sbsample[ch][s][sb] =
+@@ -403,7 +433,15 @@
+ nbal = bitalloc_table[offsets[sb]].nbal;
+
+ for (ch = 0; ch < nch; ++ch)
++ {
+ allocation[ch][sb] = mad_bit_read(&stream->ptr, nbal);
++ if (mad_bit_nextbyte(&stream->ptr) > stream->next_frame)
++ {
++ stream->error = MAD_ERROR_LOSTSYNC;
++ stream->sync = 0;
++ return -1;
++ }
++ }
+ }
+
+ for (sb = bound; sb < sblimit; ++sb) {
+@@ -411,6 +449,13 @@
+
+ allocation[0][sb] =
+ allocation[1][sb] = mad_bit_read(&stream->ptr, nbal);
++
++ if (mad_bit_nextbyte(&stream->ptr) > stream->next_frame)
++ {
++ stream->error = MAD_ERROR_LOSTSYNC;
++ stream->sync = 0;
++ return -1;
++ }
+ }
+
+ /* decode scalefactor selection info */
+@@ -419,6 +464,12 @@
+ for (ch = 0; ch < nch; ++ch) {
+ if (allocation[ch][sb])
+ scfsi[ch][sb] = mad_bit_read(&stream->ptr, 2);
++ if (mad_bit_nextbyte(&stream->ptr) > stream->next_frame)
++ {
++ stream->error = MAD_ERROR_LOSTSYNC;
++ stream->sync = 0;
++ return -1;
++ }
+ }
+ }
+
+@@ -442,6 +493,12 @@
+ for (ch = 0; ch < nch; ++ch) {
+ if (allocation[ch][sb]) {
+ scalefactor[ch][sb][0] = mad_bit_read(&stream->ptr, 6);
++ if (mad_bit_nextbyte(&stream->ptr) > stream->next_frame)
++ {
++ stream->error = MAD_ERROR_LOSTSYNC;
++ stream->sync = 0;
++ return -1;
++ }
+
+ switch (scfsi[ch][sb]) {
+ case 2:
+@@ -452,11 +509,23 @@
+
+ case 0:
+ scalefactor[ch][sb][1] = mad_bit_read(&stream->ptr, 6);
++ if (mad_bit_nextbyte(&stream->ptr) > stream->next_frame)
++ {
++ stream->error = MAD_ERROR_LOSTSYNC;
++ stream->sync = 0;
++ return -1;
++ }
+ /* fall through */
+
+ case 1:
+ case 3:
+ scalefactor[ch][sb][2] = mad_bit_read(&stream->ptr, 6);
++ if (mad_bit_nextbyte(&stream->ptr) > stream->next_frame)
++ {
++ stream->error = MAD_ERROR_LOSTSYNC;
++ stream->sync = 0;
++ return -1;
++ }
+ }
+
+ if (scfsi[ch][sb] & 1)
+@@ -488,6 +557,12 @@
+ index = offset_table[bitalloc_table[offsets[sb]].offset][index - 1];
+
+ II_samples(&stream->ptr, &qc_table[index], samples);
++ if (mad_bit_nextbyte(&stream->ptr) > stream->next_frame)
++ {
++ stream->error = MAD_ERROR_LOSTSYNC;
++ stream->sync = 0;
++ return -1;
++ }
+
+ for (s = 0; s < 3; ++s) {
+ frame->sbsample[ch][3 * gr + s][sb] =
+@@ -506,6 +581,12 @@
+ index = offset_table[bitalloc_table[offsets[sb]].offset][index - 1];
+
+ II_samples(&stream->ptr, &qc_table[index], samples);
++ if (mad_bit_nextbyte(&stream->ptr) > stream->next_frame)
++ {
++ stream->error = MAD_ERROR_LOSTSYNC;
++ stream->sync = 0;
++ return -1;
++ }
+
+ for (ch = 0; ch < nch; ++ch) {
+ for (s = 0; s < 3; ++s) {
+Index: libmad-0.15.1b/layer3.c
+===================================================================
+--- a/layer3.c 2008-12-23 21:38:07.000000000 +0100
++++ b/layer3.c 2008-12-23 21:38:12.000000000 +0100
+@@ -2608,6 +2608,12 @@
+ next_md_begin = 0;
+
+ md_len = si.main_data_begin + frame_space - next_md_begin;
++ if (md_len + MAD_BUFFER_GUARD > MAD_BUFFER_MDLEN)
++ {
++ stream->error = MAD_ERROR_LOSTSYNC;
++ stream->sync = 0;
++ return -1;
++ }
+
+ frame_used = 0;
+
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