You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
154 lines
6.0 KiB
154 lines
6.0 KiB
commit 41488498b6d9440ee66ab033808cce8323bba7ac |
|
Author: Florian Weimer <fweimer@redhat.com> |
|
Date: Wed Sep 3 19:45:43 2014 +0200 |
|
|
|
CVE-2014-6040: Crashes on invalid input in IBM gconv modules [BZ #17325] |
|
|
|
These changes are based on the fix for BZ #14134 in commit |
|
6e230d11837f3ae7b375ea69d7905f0d18eb79e5. |
|
|
|
diff --git glibc-2.17-c758a686/iconvdata/Makefile glibc-2.17-c758a686/iconvdata/Makefile |
|
index 0a410a1..b6327d6 100644 |
|
--- glibc-2.17-c758a686/iconvdata/Makefile |
|
+++ glibc-2.17-c758a686/iconvdata/Makefile |
|
@@ -297,6 +297,7 @@ $(objpfx)tst-iconv7.out: $(objpfx)gconv-modules \ |
|
$(objpfx)iconv-test.out: run-iconv-test.sh $(objpfx)gconv-modules \ |
|
$(addprefix $(objpfx),$(modules.so)) \ |
|
$(common-objdir)/iconv/iconv_prog TESTS |
|
+ iconv_modules="$(modules)" \ |
|
$(SHELL) $< $(common-objdir) '$(test-wrapper)' > $@ |
|
|
|
$(objpfx)tst-tables.out: tst-tables.sh $(objpfx)gconv-modules \ |
|
diff --git glibc-2.17-c758a686/iconvdata/ibm1364.c glibc-2.17-c758a686/iconvdata/ibm1364.c |
|
index 0b5484f..cf80993 100644 |
|
--- glibc-2.17-c758a686/iconvdata/ibm1364.c |
|
+++ glibc-2.17-c758a686/iconvdata/ibm1364.c |
|
@@ -221,7 +221,8 @@ enum |
|
++rp2; \ |
|
\ |
|
uint32_t res; \ |
|
- if (__builtin_expect (ch < rp2->start, 0) \ |
|
+ if (__builtin_expect (rp2->start == 0xffff, 0) \ |
|
+ || __builtin_expect (ch < rp2->start, 0) \ |
|
|| (res = DB_TO_UCS4[ch + rp2->idx], \ |
|
__builtin_expect (res, L'\1') == L'\0' && ch != '\0')) \ |
|
{ \ |
|
diff --git glibc-2.17-c758a686/iconvdata/ibm932.c glibc-2.17-c758a686/iconvdata/ibm932.c |
|
index f5dca59..aa69d65 100644 |
|
--- glibc-2.17-c758a686/iconvdata/ibm932.c |
|
+++ glibc-2.17-c758a686/iconvdata/ibm932.c |
|
@@ -74,11 +74,12 @@ |
|
} \ |
|
\ |
|
ch = (ch * 0x100) + inptr[1]; \ |
|
+ /* ch was less than 0xfd. */ \ |
|
+ assert (ch < 0xfd00); \ |
|
while (ch > rp2->end) \ |
|
++rp2; \ |
|
\ |
|
- if (__builtin_expect (rp2 == NULL, 0) \ |
|
- || __builtin_expect (ch < rp2->start, 0) \ |
|
+ if (__builtin_expect (ch < rp2->start, 0) \ |
|
|| (res = __ibm932db_to_ucs4[ch + rp2->idx], \ |
|
__builtin_expect (res, '\1') == 0 && ch !=0)) \ |
|
{ \ |
|
diff --git glibc-2.17-c758a686/iconvdata/ibm933.c glibc-2.17-c758a686/iconvdata/ibm933.c |
|
index f46dfb5..461fb5e 100644 |
|
--- glibc-2.17-c758a686/iconvdata/ibm933.c |
|
+++ glibc-2.17-c758a686/iconvdata/ibm933.c |
|
@@ -162,7 +162,7 @@ enum |
|
while (ch > rp2->end) \ |
|
++rp2; \ |
|
\ |
|
- if (__builtin_expect (rp2 == NULL, 0) \ |
|
+ if (__builtin_expect (rp2->start == 0xffff, 0) \ |
|
|| __builtin_expect (ch < rp2->start, 0) \ |
|
|| (res = __ibm933db_to_ucs4[ch + rp2->idx], \ |
|
__builtin_expect (res, L'\1') == L'\0' && ch != '\0')) \ |
|
diff --git glibc-2.17-c758a686/iconvdata/ibm935.c glibc-2.17-c758a686/iconvdata/ibm935.c |
|
index a8e4e6c..132d816 100644 |
|
--- glibc-2.17-c758a686/iconvdata/ibm935.c |
|
+++ glibc-2.17-c758a686/iconvdata/ibm935.c |
|
@@ -162,7 +162,7 @@ enum |
|
while (ch > rp2->end) \ |
|
++rp2; \ |
|
\ |
|
- if (__builtin_expect (rp2 == NULL, 0) \ |
|
+ if (__builtin_expect (rp2->start == 0xffff, 0) \ |
|
|| __builtin_expect (ch < rp2->start, 0) \ |
|
|| (res = __ibm935db_to_ucs4[ch + rp2->idx], \ |
|
__builtin_expect (res, L'\1') == L'\0' && ch != '\0')) \ |
|
diff --git glibc-2.17-c758a686/iconvdata/ibm937.c glibc-2.17-c758a686/iconvdata/ibm937.c |
|
index 239be61..69b154d 100644 |
|
--- glibc-2.17-c758a686/iconvdata/ibm937.c |
|
+++ glibc-2.17-c758a686/iconvdata/ibm937.c |
|
@@ -162,7 +162,7 @@ enum |
|
while (ch > rp2->end) \ |
|
++rp2; \ |
|
\ |
|
- if (__builtin_expect (rp2 == NULL, 0) \ |
|
+ if (__builtin_expect (rp2->start == 0xffff, 0) \ |
|
|| __builtin_expect (ch < rp2->start, 0) \ |
|
|| (res = __ibm937db_to_ucs4[ch + rp2->idx], \ |
|
__builtin_expect (res, L'\1') == L'\0' && ch != '\0')) \ |
|
diff --git glibc-2.17-c758a686/iconvdata/ibm939.c glibc-2.17-c758a686/iconvdata/ibm939.c |
|
index 5d0db36..9936e2c 100644 |
|
--- glibc-2.17-c758a686/iconvdata/ibm939.c |
|
+++ glibc-2.17-c758a686/iconvdata/ibm939.c |
|
@@ -162,7 +162,7 @@ enum |
|
while (ch > rp2->end) \ |
|
++rp2; \ |
|
\ |
|
- if (__builtin_expect (rp2 == NULL, 0) \ |
|
+ if (__builtin_expect (rp2->start == 0xffff, 0) \ |
|
|| __builtin_expect (ch < rp2->start, 0) \ |
|
|| (res = __ibm939db_to_ucs4[ch + rp2->idx], \ |
|
__builtin_expect (res, L'\1') == L'\0' && ch != '\0')) \ |
|
diff --git glibc-2.17-c758a686/iconvdata/ibm943.c glibc-2.17-c758a686/iconvdata/ibm943.c |
|
index be0c14f..c5d5742 100644 |
|
--- glibc-2.17-c758a686/iconvdata/ibm943.c |
|
+++ glibc-2.17-c758a686/iconvdata/ibm943.c |
|
@@ -75,11 +75,12 @@ |
|
} \ |
|
\ |
|
ch = (ch * 0x100) + inptr[1]; \ |
|
+ /* ch was less than 0xfd. */ \ |
|
+ assert (ch < 0xfd00); \ |
|
while (ch > rp2->end) \ |
|
++rp2; \ |
|
\ |
|
- if (__builtin_expect (rp2 == NULL, 0) \ |
|
- || __builtin_expect (ch < rp2->start, 0) \ |
|
+ if (__builtin_expect (ch < rp2->start, 0) \ |
|
|| (res = __ibm943db_to_ucs4[ch + rp2->idx], \ |
|
__builtin_expect (res, '\1') == 0 && ch !=0)) \ |
|
{ \ |
|
diff --git glibc-2.17-c758a686/iconvdata/run-iconv-test.sh glibc-2.17-c758a686/iconvdata/run-iconv-test.sh |
|
index c98c929..5dfb69f 100755 |
|
--- glibc-2.17-c758a686/iconvdata/run-iconv-test.sh |
|
+++ glibc-2.17-c758a686/iconvdata/run-iconv-test.sh |
|
@@ -184,6 +184,24 @@ while read utf8 from filename; do |
|
|
|
done < TESTS2 |
|
|
|
+# Check for crashes in decoders. |
|
+printf '\016\377\377\377\377\377\377\377' > $temp1 |
|
+for from in $iconv_modules ; do |
|
+ echo $ac_n "test decoder $from $ac_c" |
|
+ PROG=`eval echo $ICONV` |
|
+ if $PROG < $temp1 >/dev/null 2>&1 ; then |
|
+ : # fall through |
|
+ else |
|
+ status=$? |
|
+ if test $status -gt 1 ; then |
|
+ echo "/FAILED" |
|
+ failed=1 |
|
+ continue |
|
+ fi |
|
+ fi |
|
+ echo "OK" |
|
+done |
|
+ |
|
exit $failed |
|
# Local Variables: |
|
# mode:shell-script
|
|
|