md4c before 0.2.5 has a heap-based buffer overflow because md_split_simple_pairing_mark mishandles splits.
9.8CVSS
9.7AI Score
0.003EPSS
md4c 0.2.5 has a heap-based buffer overflow in md_merge_lines because md_is_link_label mishandles the case of a link label composed solely of backslash escapes.
9.8CVSS
9.7AI Score
0.003EPSS
md4c 0.2.5 has a heap-based buffer over-read because md_is_named_entity_contents has an off-by-one error.
9.8CVSS
9.5AI Score
0.002EPSS
md_is_link_reference_definition_helper in md4c 0.2.5 has a heap-based buffer over-read because md_is_link_label mishandles loop termination.
9.8CVSS
9.5AI Score
0.002EPSS
md4c 0.2.6 has a NULL pointer dereference in the function md_process_line in md4c.c, related to ctx->current_block.
5.5CVSS
5.4AI Score
0.001EPSS
md_build_attribute in md4c.c in md4c 0.2.6 allows remote attackers to cause a denial of service (Segmentation fault and application crash) or possibly have unspecified other impact via a crafted file.
7.8CVSS
8AI Score
0.004EPSS
md_push_block_bytes in md4c.c in md4c 0.4.5 allows attackers to trigger use of uninitialized memory, and cause a denial of service (e.g., assertion failure) via a malformed Markdown document.
7.5CVSS
7.3AI Score
0.001EPSS
md_analyze_line in md4c.c in md4c 0.4.7 allows attackers to trigger use of uninitialized memory, and cause a denial of service via a malformed Markdown document.
5.5CVSS
5.3AI Score
0.001EPSS