CVE-2009-4565
sendmail - insufficient input validation
EPSS 2.4%
描述
sendmail before 8.14.4 does not properly handle a '\0' character in a Common Name (CN) field of an X.509 certificate, which (1) allows man-in-the-middle attackers to spoof arbitrary SSL-based SMTP servers via a crafted server certificate issued by a legitimate Certification Authority, and (2) allows remote attackers to bypass intended access restrictions via a crafted client certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.
如何修補 CVE-2009-4565
要修補 CVE-2009-4565,請將受影響套件升級到下列已修補版本。
- Debian/sendmail—升級至 8.14.3-9.1 或更新版本
- —升級至 8.13.8-3+etch1 或更新版本
CVE-2009-4565 正在被利用嗎?
低 — EPSS 為 2.4%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0, < 8.14.3-9.1
- from 0, < 8.13.8-3+etch1