CVE-2023-28626
Comrak vulnerable to quadratic runtime issues when parsing Markdown (GHSL-2023-047)
描述
### Impact A range of quadratic parsing issues from `cmark`/`cmark-gfm` are also present in Comrak. These can be used to craft denial-of-service attacks on services that use Comrak to parse Markdown. ### Patches 0.17.0 contains fixes to known quadratic parsing issues. ### Workarounds n/a ### References * https://github.com/commonmark/cmark/issues/255 * https://github.com/commonmark/cmark/issues/389 * https://github.com/commonmark/cmark/issues/373 * https://github.com/commonmark/cmark/issues/299 * https://github.com/commonmark/cmark/issues/388 * https://github.com/commonmark/cmark/issues/284 * https://github.com/commonmark/cmark/issues/218 * https://github.com/commonmark/cmark/pull/232 * https://github.com/github/cmark-gfm/blob/c32ef78bae851cb83b7ad52d0fbff880acdcd44a/test/pathological_tests.py#L63-L65 * https://github.com/github/cmark-gfm/blob/c32ef78bae851cb83b7ad52d0fbff880acdcd44a/test/pathological_tests.py#L87-L89
如何修補 CVE-2023-28626
要修補 CVE-2023-28626,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-2023-28626 正在被利用嗎?
低 — EPSS 為 0.5%,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 |