CVE-2012-3406 — eglibc - security update

描述

The vfprintf function in stdio-common/vfprintf.c in GNU C Library (aka glibc) 2.5, 2.12, and probably other versions does not "properly restrict the use of" the alloca function when allocating the SPECS array, which allows context-dependent attackers to bypass the FORTIFY_SOURCE format-string protection mechanism and cause a denial of service (crash) or possibly execute arbitrary code via a crafted format string using positional parameters and a large number of format specifiers, a different vulnerability than CVE-2012-3404 and CVE-2012-3405.

如何修補 CVE-2012-3406

要修補 CVE-2012-3406,請將受影響套件升級到下列已修補版本。

—升級至 2.13-38+deb7u8 或更新版本
—升級至 2.19-14 或更新版本

CVE-2012-3406 正在被利用嗎?

低 — EPSS 為 3.2%,目前沒有觀察到大規模利用活動。

受影響套件(2)

from 0, < 2.13-38+deb7u8
from 0, < 2.19-14

參考連結(1)

ADVISORYsecurity-tracker.debian.org/tracker/CVE-2012-3406