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graphite2/graphite2-CVE-2018-7999.patch
Tomáš Chvátal 859e777c2a Accepting request 585885 from home:pgajdos 
- Update to 1.3.11:
- removed patches (upstreamed or not needed)
  * gcc8.patch (code commeted out)
  * graphite-nonvoid-return.patch (code commented out)
  * graphite2-python3_tests.patch (upstreamed)
  * graphite2-python3_tests_cornercases.patch (upstreamed
- refreshed patch
  * link-gcc-shared.diff
- fixes security issue: CVE-2018-7999 [bsc#1084850]
  + graphite2-CVE-2018-7999.patch

OBS-URL: https://build.opensuse.org/request/show/585885
OBS-URL: https://build.opensuse.org/package/show/LibreOffice:Factory/graphite2?expand=0&rev=58
2018-03-12 21:28:12 +00:00

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--- a/include/graphite2/Font.h
+++ b/include/graphite2/Font.h
@@ -56,7 +56,7 @@ GR2_API void gr_engine_version(int *nMajor, int *nMinor, int *nBugFix);
enum gr_face_options {
/** No preload, no cmap caching, fail if the graphite tables are invalid */
gr_face_default = 0,
- /** Dumb rendering will be enabled if the graphite tables are invalid */
+ /** Dumb rendering will be enabled if the graphite tables are invalid. DEPRECATED. */
gr_face_dumbRendering = 1,
/** preload glyphs at construction time */
gr_face_preloadGlyphs = 2,
diff --git a/src/GlyphCache.cpp b/src/GlyphCache.cpp
index c4ab807b..1acf7f98 100644
--- a/src/GlyphCache.cpp
+++ b/src/GlyphCache.cpp
@@ -84,7 +84,7 @@ const SlantBox SlantBox::empty = {0,0,0,0};
class GlyphCache::Loader
{
public:
- Loader(const Face & face, const bool dumb_font); //return result indicates success. Do not use if failed.
+ Loader(const Face & face); //return result indicates success. Do not use if failed.
operator bool () const throw();
unsigned short int units_per_em() const throw();
@@ -115,7 +115,7 @@ class GlyphCache::Loader
GlyphCache::GlyphCache(const Face & face, const uint32 face_options)
-: _glyph_loader(new Loader(face, bool(face_options & gr_face_dumbRendering))),
+: _glyph_loader(new Loader(face)),
_glyphs(_glyph_loader && *_glyph_loader && _glyph_loader->num_glyphs()
? grzeroalloc<const GlyphFace *>(_glyph_loader->num_glyphs()) : 0),
_boxes(_glyph_loader && _glyph_loader->has_boxes() && _glyph_loader->num_glyphs()
@@ -239,7 +239,7 @@ const GlyphFace *GlyphCache::glyph(unsigned short glyphid) const //result m
-GlyphCache::Loader::Loader(const Face & face, const bool dumb_font)
+GlyphCache::Loader::Loader(const Face & face)
: _head(face, Tag::head),
_hhea(face, Tag::hhea),
_hmtx(face, Tag::hmtx),
@@ -265,52 +265,49 @@ GlyphCache::Loader::Loader(const Face & face, const bool dumb_font)
return;
}
- if (!dumb_font)
+ if ((m_pGlat = Face::Table(face, Tag::Glat, 0x00030000)) == NULL
+ || (m_pGloc = Face::Table(face, Tag::Gloc)) == NULL
+ || m_pGloc.size() < 8)
{
- if ((m_pGlat = Face::Table(face, Tag::Glat, 0x00030000)) == NULL
- || (m_pGloc = Face::Table(face, Tag::Gloc)) == NULL
- || m_pGloc.size() < 8)
- {
- _head = Face::Table();
- return;
- }
- const byte * p = m_pGloc;
- int version = be::read<uint32>(p);
- const uint16 flags = be::read<uint16>(p);
- _num_attrs = be::read<uint16>(p);
- // We can accurately calculate the number of attributed glyphs by
- // subtracting the length of the attribids array (numAttribs long if present)
- // and dividing by either 2 or 4 depending on shor or lonf format
- _long_fmt = flags & 1;
- int tmpnumgattrs = (m_pGloc.size()
- - (p - m_pGloc)
- - sizeof(uint16)*(flags & 0x2 ? _num_attrs : 0))
- / (_long_fmt ? sizeof(uint32) : sizeof(uint16)) - 1;
-
- if (version >= 0x00020000 || tmpnumgattrs < 0 || tmpnumgattrs > 65535
- || _num_attrs == 0 || _num_attrs > 0x3000 // is this hard limit appropriate?
- || _num_glyphs_graphics > tmpnumgattrs
- || m_pGlat.size() < 4)
- {
- _head = Face::Table();
- return;
- }
+ _head = Face::Table();
+ return;
+ }
+ const byte * p = m_pGloc;
+ int version = be::read<uint32>(p);
+ const uint16 flags = be::read<uint16>(p);
+ _num_attrs = be::read<uint16>(p);
+ // We can accurately calculate the number of attributed glyphs by
+ // subtracting the length of the attribids array (numAttribs long if present)
+ // and dividing by either 2 or 4 depending on shor or lonf format
+ _long_fmt = flags & 1;
+ int tmpnumgattrs = (m_pGloc.size()
+ - (p - m_pGloc)
+ - sizeof(uint16)*(flags & 0x2 ? _num_attrs : 0))
+ / (_long_fmt ? sizeof(uint32) : sizeof(uint16)) - 1;
+
+ if (version >= 0x00020000 || tmpnumgattrs < 0 || tmpnumgattrs > 65535
+ || _num_attrs == 0 || _num_attrs > 0x3000 // is this hard limit appropriate?
+ || _num_glyphs_graphics > tmpnumgattrs
+ || m_pGlat.size() < 4)
+ {
+ _head = Face::Table();
+ return;
+ }
- _num_glyphs_attributes = static_cast<unsigned short>(tmpnumgattrs);
- p = m_pGlat;
- version = be::read<uint32>(p);
- if (version >= 0x00040000 || (version >= 0x00030000 && m_pGlat.size() < 8)) // reject Glat tables that are too new
- {
- _head = Face::Table();
- return;
- }
- else if (version >= 0x00030000)
- {
- unsigned int glatflags = be::read<uint32>(p);
- _has_boxes = glatflags & 1;
- // delete this once the compiler is fixed
- _has_boxes = true;
- }
+ _num_glyphs_attributes = static_cast<unsigned short>(tmpnumgattrs);
+ p = m_pGlat;
+ version = be::read<uint32>(p);
+ if (version >= 0x00040000 || (version >= 0x00030000 && m_pGlat.size() < 8)) // reject Glat tables that are too new
+ {
+ _head = Face::Table();
+ return;
+ }
+ else if (version >= 0x00030000)
+ {
+ unsigned int glatflags = be::read<uint32>(p);
+ _has_boxes = glatflags & 1;
+ // delete this once the compiler is fixed
+ _has_boxes = true;
}
}
diff --git a/src/gr_face.cpp b/src/gr_face.cpp
index 65a4b117..e69c7fbe 100644
--- a/src/gr_face.cpp
+++ b/src/gr_face.cpp
@@ -47,8 +47,7 @@ namespace
telemetry::category _misc_cat(face.tele.misc);
#endif
Face::Table silf(face, Tag::Silf, 0x00050000);
- if (silf) options &= ~gr_face_dumbRendering;
- else if (!(options & gr_face_dumbRendering))
+ if (!silf)
return false;
if (!face.readGlyphs(options))
@@ -74,7 +73,7 @@ namespace
return true;
}
else
- return options & gr_face_dumbRendering;
+ return false;
}
}
diff --git a/tests/featuremap/CMakeLists.txt b/tests/featuremap/CMakeLists.txt
index fc57f96c..a438f66c 100644
--- a/tests/featuremap/CMakeLists.txt
+++ b/tests/featuremap/CMakeLists.txt
@@ -20,7 +20,7 @@ if (GRAPHITE2_ASAN)
endif (GRAPHITE2_ASAN)
target_link_libraries(featuremaptest graphite2 graphite2-base graphite2-segcache graphite2-base)
-add_test(NAME featuremaptest COMMAND $<TARGET_FILE:featuremaptest> ${testing_SOURCE_DIR}/fonts/tiny.ttf)
+add_test(NAME featuremaptest COMMAND $<TARGET_FILE:featuremaptest> ${testing_SOURCE_DIR}/fonts/small.ttf)
set_tests_properties(featuremaptest PROPERTIES TIMEOUT 3)
if (GRAPHITE2_ASAN)
set_property(TEST featuremaptest APPEND PROPERTY ENVIRONMENT "ASAN_SYMBOLIZER_PATH=${ASAN_SYMBOLIZER}")
diff --git a/tests/featuremap/featuremaptest.cpp b/tests/featuremap/featuremaptest.cpp
index fcd9b873..a9aa497f 100644
--- a/tests/featuremap/featuremaptest.cpp
+++ b/tests/featuremap/featuremaptest.cpp
@@ -243,7 +243,7 @@ template <class T> void testFeatTable(const T & table, const char * testName)
{
FeatureMap testFeatureMap;
dummyFace.replace_table(TtfUtil::Tag::Feat, &table, sizeof(T));
- gr_face * face = gr_make_face_with_ops(&dummyFace, &face_handle::ops, gr_face_dumbRendering);
+ gr_face * face = gr_make_face_with_ops(&dummyFace, &face_handle::ops, 0);
if (!face) throw std::runtime_error("failed to load font");
bool readStatus = testFeatureMap.readFeats(*face);
testAssert("readFeats", readStatus);
@@ -285,9 +285,8 @@ int main(int argc, char * argv[])
// test a bad settings offset stradling the end of the table
FeatureMap testFeatureMap;
dummyFace.replace_table(TtfUtil::Tag::Feat, &testBadOffset, sizeof testBadOffset);
- face = gr_make_face_with_ops(&dummyFace, &face_handle::ops, gr_face_dumbRendering);
- bool readStatus = testFeatureMap.readFeats(*face);
- testAssert("fail gracefully on bad table", !readStatus);
+ face = gr_make_face_with_ops(&dummyFace, &face_handle::ops, 0);
+ testAssert("fail gracefully on bad table", !face);
}
catch (std::exception & e)
{
diff --git a/tests/vm/CMakeLists.txt b/tests/vm/CMakeLists.txt
index 4a0b8231..24fbd3b8 100644
--- a/tests/vm/CMakeLists.txt
+++ b/tests/vm/CMakeLists.txt
@@ -41,7 +41,7 @@ if (${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
endif ("${CMAKE_BUILD_TYPE}" STREQUAL "Release")
endif (${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
-add_test(vm-test-call-threading vm-test-call ${testing_SOURCE_DIR}/fonts/tiny.ttf 1)
+add_test(vm-test-call-threading vm-test-call ${testing_SOURCE_DIR}/fonts/small.ttf 1)
set_tests_properties(vm-test-call-threading PROPERTIES
PASS_REGULAR_EXPRESSION "simple program size: 14 bytes.*result of program: 42"
FAIL_REGULAR_EXPRESSION "program terminated early;stack not empty")
@@ -51,7 +51,7 @@ if (GRAPHITE2_ASAN)
endif (GRAPHITE2_ASAN)
if (${CMAKE_COMPILER_IS_GNUCXX})
- add_test(vm-test-direct-threading vm-test-direct ${testing_SOURCE_DIR}/fonts/tiny.ttf 1)
+ add_test(vm-test-direct-threading vm-test-direct ${testing_SOURCE_DIR}/fonts/small.ttf 1)
set_tests_properties(vm-test-direct-threading PROPERTIES
PASS_REGULAR_EXPRESSION "simple program size: 14 bytes.*result of program: 42"
FAIL_REGULAR_EXPRESSION "program terminated early;stack not empty")
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