CVE-2015-1799

描述

The symmetric-key feature in the receive function in ntp_proto.c in ntpd in NTP 3.x and 4.x before 4.2.8p2 performs state-variable updates upon receiving certain invalid packets, which makes it easier for man-in-the-middle attackers to cause a denial of service (synchronization loss) by spoofing the source IP address of a peer.

如何修補 CVE-2015-1799

要修補 CVE-2015-1799,請將受影響套件升級到下列已修補版本。

• Debian/ntp—升級至 1:4.2.6.p5+dfsg-6 或更新版本

CVE-2015-1799 正在被利用嗎?

低 — EPSS 為 0.9%,目前沒有觀察到大規模利用活動。

受影響套件(1)

• from 0, < 1:4.2.6.p5+dfsg-6

參考連結(1)

• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2015-1799