SUSE-SU-2026:20762-1 Security update for harfbuzz

This update for harfbuzz fixes the following issues: Update to version 11.4.5: Security fixes: - CVE-2026-22693: Fixed a NULL pointer dereference in SubtableUnicodesCache::create bsc1256459. Other fixes: - Bug fixes for “AAT” shaping, and other shaping micro optimizations. - Fix a shaping...

harfbuzz:hb-subset-fuzzer: Heap-use-after-free in graph::LigatureSubstFormat1::shrink

Project: https://github.com/harfbuzz/harfbuzz.git Detailed Report: https://oss-fuzz.com/testcase?key=6005602106277888 Project: harfbuzz Fuzzing Engine: libFuzzer Fuzz Target: hb-subset-fuzzer Job Type: libfuzzerasanharfbuzz Platform Id: linux Crash Type: Heap-use-after-free READ 8 Crash Address:...

harfbuzz:hb-subset-fuzzer: Use-of-uninitialized-value in OT::postV2Tail::subset

Project: https://github.com/harfbuzz/harfbuzz.git Detailed Report: https://oss-fuzz.com/testcase?key=5693568490012672 Project: harfbuzz Fuzzing Engine: libFuzzer Fuzz Target: hb-subset-fuzzer Job Type: libfuzzermsanharfbuzz Platform Id: linux Crash Type: Use-of-uninitialized-value Crash Address:...

poppler:annot_fuzzer: Heap-buffer-overflow in cairo_cff_parse_charstring

Project: https://anongit.freedesktop.org/git/poppler/poppler.git https://gitlab.freedesktop.org/poppler/poppler.git https://gitlab.freedesktop.org/ceyhunalp/poppler.git Detailed Report: https://oss-fuzz.com/testcase?key=6630068655357952 Project: poppler Fuzzing Engine: libFuzzer Fuzz Target:...

Microsoft Windows Font Subsetting Library Out-Of-Bounds Write Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microsoft Windows. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the font...

Microsoft Font Subsetting - DLL Heap Corruption in ReadTableIntoStructure

Microsoft Font Subsetting - DLL Heap Corruption in ReadTableIntoStructure -----===== Background =====----- The Microsoft Font Subsetting DLL fontsub.dll is a default Windows helper library for subsetting TTF fonts; i.e. converting fonts to their more compact versions based on the specific glyphs...

Microsoft Font Subsetting - DLL Heap-Based Out-of-Bounds read in WriteTableFromStructure

Microsoft Font Subsetting - DLL Heap-Based Out-of-Bounds read in WriteTableFromStructure -----===== Background =====----- The Microsoft Font Subsetting DLL fontsub.dll is a default Windows helper library for subsetting TTF fonts; i.e. converting fonts to their more compact versions based on the...

Microsoft Font Subsetting - DLL Double Free in MergeFormat12Cmap MakeFormat12MergedGlyphList

Microsoft Font Subsetting - DLL Double Free in MergeFormat12Cmap MakeFormat12MergedGlyphList -----===== Background =====----- The Microsoft Font Subsetting DLL fontsub.dll is a default Windows helper library for subsetting TTF fonts; i.e. converting fonts to their more compact versions based on t...

Microsoft Font Subsetting - DLL Heap-Based Out-of-Bounds read in FixSbitSubTableFormat1

Microsoft Font Subsetting - DLL Heap-Based Out-of-Bounds read in FixSbitSubTableFormat1 -----===== Background =====----- The Microsoft Font Subsetting DLL fontsub.dll is a default Windows helper library for subsetting TTF fonts; i.e. converting fonts to their more compact versions based on the...

Microsoft Font Subsetting - DLL Heap-Based Out-of-Bounds read in GetGlyphIdx

Microsoft Font Subsetting - DLL Heap-Based Out-of-Bounds read in GetGlyphIdx -----===== Background =====----- The Microsoft Font Subsetting DLL fontsub.dll is a default Windows helper library for subsetting TTF fonts; i.e. converting fonts to their more compact versions based on the specific glyp...

Microsoft Font Subsetting - DLL Heap Corruption in ReadAllocFormat12CharGlyphMapList

Microsoft Font Subsetting - DLL Heap Corruption in ReadAllocFormat12CharGlyphMapList -----===== Background =====----- The Microsoft Font Subsetting DLL fontsub.dll is a default Windows helper library for subsetting TTF fonts; i.e. converting fonts to their more compact versions based on the...

Microsoft Font Subsetting - DLL Returning a Dangling Pointer via MergeFontPackage

Microsoft Font Subsetting - DLL Returning a Dangling Pointer via MergeFontPackage -----===== Background =====----- The Microsoft Font Subsetting DLL fontsub.dll is a default Windows helper library for subsetting TTF fonts; i.e. converting fonts to their more compact versions based on the specific...

Microsoft Font Subsetting - DLL Heap Corruption in MakeFormat12MergedGlyphList

Microsoft Font Subsetting - DLL Heap Corruption in MakeFormat12MergedGlyphList -----===== Background =====----- The Microsoft Font Subsetting DLL fontsub.dll is a default Windows helper library for subsetting TTF fonts; i.e. converting fonts to their more compact versions based on the specific...

Microsoft Font Subsetting - DLL Heap Corruption in FixSbitSubTables

Microsoft Font Subsetting - DLL Heap Corruption in FixSbitSubTables -----===== Background =====----- The Microsoft Font Subsetting DLL fontsub.dll is a default Windows helper library for subsetting TTF fonts; i.e. converting fonts to their more compact versions based on the specific glyphs used i...

Microsoft Font Subsetting - DLL Heap Corruption in ReadAllocFormat12CharGlyphMapList

-----===== Background =====----- The Microsoft Font Subsetting DLL fontsub.dll is a default Windows helper library for subsetting TTF fonts; i.e. converting fonts to their more compact versions based on the specific glyphs used in the document where the fonts are embedded. It is used by Windows G...

Microsoft Font Subsetting - DLL Heap Corruption in ReadTableIntoStructure

-----===== Background =====----- The Microsoft Font Subsetting DLL fontsub.dll is a default Windows helper library for subsetting TTF fonts; i.e. converting fonts to their more compact versions based on the specific glyphs used in the document where the fonts are embedded. It is used by Windows G...

Microsoft Font Subsetting - DLL Heap-Based Out-of-Bounds read in FixSbitSubTableFormat1

-----===== Background =====----- The Microsoft Font Subsetting DLL fontsub.dll is a default Windows helper library for subsetting TTF fonts; i.e. converting fonts to their more compact versions based on the specific glyphs used in the document where the fonts are embedded. It is used by Windows G...

Microsoft Font Subsetting - DLL Double Free in MergeFormat12Cmap / MakeFormat12MergedGlyphList

-----===== Background =====----- The Microsoft Font Subsetting DLL fontsub.dll is a default Windows helper library for subsetting TTF fonts; i.e. converting fonts to their more compact versions based on the specific glyphs used in the document where the fonts are embedded. It is used by Windows G...

Microsoft Font Subsetting - DLL Heap-Based Out-of-Bounds read in GetGlyphIdx

-----===== Background =====----- The Microsoft Font Subsetting DLL fontsub.dll is a default Windows helper library for subsetting TTF fonts; i.e. converting fonts to their more compact versions based on the specific glyphs used in the document where the fonts are embedded. It is used by Windows G...

Microsoft Font Subsetting - DLL Heap-Based Out-of-Bounds read in WriteTableFromStructure

-----===== Background =====----- The Microsoft Font Subsetting DLL fontsub.dll is a default Windows helper library for subsetting TTF fonts; i.e. converting fonts to their more compact versions based on the specific glyphs used in the document where the fonts are embedded. It is used by Windows G...