CVE-2011-1764 — exim4 - format string vulnerability

描述

Format string vulnerability in the dkim_exim_verify_finish function in src/dkim.c in Exim before 4.76 might allow remote attackers to execute arbitrary code or cause a denial of service (daemon crash) via format string specifiers in data used in DKIM logging, as demonstrated by an identity field containing a % (percent) character.

如何修補 CVE-2011-1764

要修補 CVE-2011-1764,請將受影響套件升級到下列已修補版本。

Debian/exim4—升級至 4.75-3 或更新版本
Debian/exim4—升級至 4.72-6+squeeze1 或更新版本

CVE-2011-1764 正在被利用嗎?

低 — EPSS 為 3.9%,目前沒有觀察到大規模利用活動。

受影響套件(2)

from 0, < 4.75-3
from 0, < 4.72-6+squeeze1

參考連結(1)

ADVISORYsecurity-tracker.debian.org/tracker/CVE-2011-1764