CVE-2017-13089
wget - security update
8.8
HIGH
CVSS 3.1
EPSS 79.9%
描述
The http.c:skip_short_body() function is called in some circumstances, such as when processing redirects. When the response is sent chunked in wget before 1.19.2, the chunk parser uses strtol() to read each chunk's length, but doesn't check that the chunk length is a non-negative number. The code then tries to skip the chunk in pieces of 512 bytes by using the MIN() macro, but ends up passing the negative chunk length to connect.c:fd_read(). As fd_read() takes an int argument, the high 32 bits of the chunk length are discarded, leaving fd_read() with a completely attacker controlled length argument.
如何修補 CVE-2017-13089
要修補 CVE-2017-13089,請將受影響套件升級到下列已修補版本。
- —升級至 1.18-r2 或更新版本
- —升級至 1.19.2-1 或更新版本
- —升級至 1.13.4-3+deb7u5 或更新版本
- —升級至 1.16-1+deb8u4 或更新版本
CVE-2017-13089 正在被利用嗎?
可能 — EPSS 為 79.9%,屬於高被利用機率區間,建議優先修補。
受影響套件(4)
- from 0, < 1.18-r2
- from 0, < 1.19.2-1
- from 0, < 1.13.4-3+deb7u5
- from 0, < 1.16-1+deb8u4
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |