md4c before 0.2.5 has a heap-based buffer overflow because md_split_simple_pairing_mark mishandles splits.
CVSS 2.0
Severity: HIGH
Problem Type: CWE-787,
Products Affected
| Vendor | Product | Version |
|---|---|---|
| md4c_project | md4c | * |
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.
CVSS 2.0
Severity: HIGH
Problem Type: CWE-787,
Products Affected
| Vendor | Product | Version |
|---|---|---|
| md4c_project | md4c | 0.2.5 |
md4c 0.2.5 has a heap-based buffer over-read because md_is_named_entity_contents has an off-by-one error.
CVSS 2.0
Severity: HIGH
Problem Type: CWE-125,
Products Affected
| Vendor | Product | Version |
|---|---|---|
| md4c_project | md4c | 0.2.5 |
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.
CVSS 2.0
Severity: HIGH
Problem Type: CWE-125,
Products Affected
| Vendor | Product | Version |
|---|---|---|
| md4c_project | md4c | 0.2.5 |
md4c 0.2.6 has a NULL pointer dereference in the function md_process_line in md4c.c, related to ctx->current_block.
CVSS 2.0
Severity: MEDIUM
Problem Type: CWE-476,
Products Affected
| Vendor | Product | Version |
|---|---|---|
| md4c_project | md4c | 0.2.6 |
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.
CVSS 2.0
Severity: MEDIUM
Problem Type: CWE-119,
Products Affected
| Vendor | Product | Version |
|---|---|---|
| md4c_project | md4c | 0.2.6 |
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.
CVSS 3.x
| Source | Score | Severity | Vector | Exploitability | Impact |
|---|---|---|---|---|---|
| nvd@nist.gov | 7.5 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | 3.9 | 3.6 |
CVSS 2.0
Severity: MEDIUM
Problem Type: CWE-908,
Products Affected
| Vendor | Product | Version |
|---|---|---|
| md4c_project | md4c | 0.4.5 |
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.
CVSS 3.x
| Source | Score | Severity | Vector | Exploitability | Impact |
|---|---|---|---|---|---|
| nvd@nist.gov | 5.5 | MEDIUM | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H | 1.8 | 3.6 |
CVSS 2.0
Severity: MEDIUM
Problem Type: CWE-908,
Products Affected
| Vendor | Product | Version |
|---|---|---|
| md4c_project | md4c | 0.4.7 |