CVE-2025-47917
mbedtls - security update
描述
Mbed TLS before 3.6.4 allows a use-after-free in certain situations of applications that are developed in accordance with the documentation. The function mbedtls_x509_string_to_names() takes a head argument that is documented as an output argument. The documentation does not suggest that the function will free that pointer; however, the function does call mbedtls_asn1_free_named_data_list() on that argument, which performs a deep free(). As a result, application code that uses this function (relying only on documented behavior) is likely to still hold pointers to the memory blocks that were freed, resulting in a high risk of use-after-free or double-free. In particular, the two sample programs x509/cert_write and x509/cert_req are affected (use-after-free if the san string contains more than one DN).
如何修補 CVE-2025-47917
要修補 CVE-2025-47917,請將受影響套件升級到下列已修補版本。
- —升級至 3.6.4-r0 或更新版本
- —升級至 2.16.9-0.1+deb11u3 或更新版本
- —升級至 2.16.9-0.1+deb11u2 或更新版本
- —升級至 2.16.9-0.1+deb11u3 或更新版本
CVE-2025-47917 正在被利用嗎?
低 — EPSS 為 2.0%,目前沒有觀察到大規模利用活動。
受影響套件(4)
- from 0, < 3.6.4-r0
- from 0, < 2.16.9-0.1+deb11u3
- from 0, < 2.16.9-0.1+deb11u2
- from 0, < 2.16.9-0.1+deb11u3
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |