CVE-2012-3405

描述

The vfprintf function in stdio-common/vfprintf.c in libc in GNU C Library (aka glibc) 2.14 and other versions does not properly calculate a buffer length, which allows context-dependent attackers to bypass the FORTIFY_SOURCE format-string protection mechanism and cause a denial of service (segmentation fault and crash) via a format string with a large number of format specifiers that triggers "desynchronization within the buffer size handling," a different vulnerability than CVE-2012-3404.

如何修補 CVE-2012-3405

要修補 CVE-2012-3405,請將受影響套件升級到下列已修補版本。

• Debian/glibc—升級至 2.13-35 或更新版本

CVE-2012-3405 正在被利用嗎?

低 — EPSS 為 2.1%,目前沒有觀察到大規模利用活動。

受影響套件(1)

• from 0, < 2.13-35

參考連結(1)

• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2012-3405