CVE-2015-7974
ntp - security update
7.7
HIGH
CVSS 3.1
EPSS 10.7%
Description
NTP 4.x before 4.2.8p6 and 4.3.x before 4.3.90 do not verify peer associations of symmetric keys when authenticating packets, which might allow remote attackers to conduct impersonation attacks via an arbitrary trusted key, aka a "skeleton key."
How to fix CVE-2015-7974
To remediate CVE-2015-7974, upgrade the affected package to a fixed version below.
- Debian/ntp—upgrade to 1:4.2.8p7+dfsg-1 or later
- —upgrade to 1:4.2.6.p5+dfsg-2+deb7u7 or later
- —upgrade to 1:4.2.6.p5+dfsg-7+deb8u2 or later
Is CVE-2015-7974 being exploited?
Moderate — EPSS is 10.7%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (3)
- from 0, < 1:4.2.8p7+dfsg-1
- from 0, < 1:4.2.6.p5+dfsg-2+deb7u7
- from 0, < 1:4.2.6.p5+dfsg-7+deb8u2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N |