CVE-2023-28631
Comrak AST node data is not validated (GHSL-2023-049)
描述
### Impact A Comrak AST can be constructed manually by a program instead of parsing a Markdown document with `parse_document`. This AST can then be converted to HTML via `html::format_document_with_plugins`. However, the HTML formatting code assumes that the AST is well-formed. For example, many AST notes contain `[u8]` fields which the formatting code assumes is valid UTF-8 data. Several bugs can be triggered if this is not the case. ### Patches 0.17.0 contains adjustments to the AST, storing strings instead of unvalidated byte arrays. ### Workarounds * Validate UTF-8 correctness of all data when assigning to `&[u8]` and `Vec<u8>` fields in the AST. ### References n/a
如何修補 CVE-2023-28631
要修補 CVE-2023-28631,請將受影響套件升級到下列已修補版本。
- —升級至 0.17.0 或更新版本
CVE-2023-28631 正在被利用嗎?
低 — EPSS 為 0.6%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- from 0, < 0.17.0
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |