CVE-2020-29573
7.5
HIGH
CVSS 3.1
EPSS 2.8%
描述
sysdeps/i386/ldbl2mpn.c in the GNU C Library (aka glibc or libc6) before 2.23 on x86 targets has a stack-based buffer overflow if the input to any of the printf family of functions is an 80-bit long double with a non-canonical bit pattern, as seen when passing a \x00\x04\x00\x00\x00\x00\x00\x00\x00\x04 value to sprintf. NOTE: the issue does not affect glibc by default in 2016 or later (i.e., 2.23 or later) because of commits made in 2015 for inlining of C99 math functions through use of GCC built-ins. In other words, the reference to 2.23 is intentional despite the mention of "Fixed for glibc 2.33" in the 26649 reference.
如何修補 CVE-2020-29573
要修補 CVE-2020-29573,請將受影響套件升級到下列已修補版本。
- —升級至 2.23-1 或更新版本
CVE-2020-29573 正在被利用嗎?
低 — EPSS 為 2.8%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- from 0, < 2.23-1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |