CVE-2023-38546
描述
This flaw allows an attacker to insert cookies at will into a running program using libcurl, if the specific series of conditions are met. libcurl performs transfers. In its API, an application creates "easy handles" that are the individual handles for single transfers. libcurl provides a function call that duplicates en easy handle called [curl_easy_duphandle](https://curl.se/libcurl/c/curl_easy_duphandle.html). If a transfer has cookies enabled when the handle is duplicated, the cookie-enable state is also cloned - but without cloning the actual cookies. If the source handle did not read any cookies from a specific file on disk, the cloned version of the handle would instead store the file name as `none` (using the four ASCII letters, no quotes). Subsequent use of the cloned handle that does not explicitly set a source to load cookies from would then inadvertently load cookies from a file named `none` - if such a file exists and is readable in the current directory of the program using libcurl. And if using the correct file format of course.
如何修補 CVE-2023-38546
要修補 CVE-2023-38546,請將受影響套件升級到下列已修補版本。
- —升級至 8.4.0-r0 或更新版本
- —升級至 7.74.0-1.3+deb11u10 或更新版本
CVE-2023-38546 正在被利用嗎?
中等 — EPSS 為 6.2%,可持續追蹤但非最高優先。
受影響套件(2)
- from 0, < 8.4.0-r0
- from 0, < 7.74.0-1.3+deb11u10
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | LOW3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N |