CVE-2017-1000257
curl - security update
9.1
CRITICAL
CVSS 3.1
EPSS 6.2%
描述
An IMAP FETCH response line indicates the size of the returned data, in number of bytes. When that response says the data is zero bytes, libcurl would pass on that (non-existing) data with a pointer and the size (zero) to the deliver-data function. libcurl's deliver-data function treats zero as a magic number and invokes strlen() on the data to figure out the length. The strlen() is called on a heap based buffer that might not be zero terminated so libcurl might read beyond the end of it into whatever memory lies after (or just crash) and then deliver that to the application as if it was actually downloaded.
如何修補 CVE-2017-1000257
要修補 CVE-2017-1000257,請將受影響套件升級到下列已修補版本。
- —升級至 7.56.1-r0 或更新版本
- —升級至 7.56.1-1 或更新版本
- —升級至 7.26.0-1+wheezy22 或更新版本
- —升級至 7.38.0-4+deb8u7 或更新版本
CVE-2017-1000257 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(4)
- from 0, < 7.56.1-r0
- from 0, < 7.56.1-1
- from 0, < 7.26.0-1+wheezy22
- from 0, < 7.38.0-4+deb8u7
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.1 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |