CVE-2016-2774
isc-dhcp - security update
5.9
MEDIUM
CVSS 3.1
EPSS 65.6%
Description
ISC DHCP 4.1.x before 4.1-ESV-R13 and 4.2.x and 4.3.x before 4.3.4 does not restrict the number of concurrent TCP sessions, which allows remote attackers to cause a denial of service (INSIST assertion failure or request-processing outage) by establishing many sessions.
How to fix CVE-2016-2774
To remediate CVE-2016-2774, upgrade the affected package to a fixed version below.
- Debian/isc-dhcp—upgrade to 4.3.4-1 or later
- —upgrade to 4.3.1-6+deb8u4 or later
Is CVE-2016-2774 being exploited?
Likely — EPSS is 65.6%, placing CVE-2016-2774 in the top tier of vulnerabilities by exploitation probability. Prioritise patching.
Affected packages (2)
- from 0, < 4.3.4-1
- from 0, < 4.3.1-6+deb8u4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |