CVE-2017-12132
5.9
MEDIUM
CVSS 3.1
EPSS 0.60%
Description
The DNS stub resolver in the GNU C Library (aka glibc or libc6) before version 2.26, when EDNS support is enabled, will solicit large UDP responses from name servers, potentially simplifying off-path DNS spoofing attacks due to IP fragmentation.
How to fix CVE-2017-12132
To remediate CVE-2017-12132, upgrade the affected package to a fixed version below.
- Debian/glibc—upgrade to 2.25-1 or later
Is CVE-2017-12132 being exploited?
Low — EPSS is 0.6%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 2.25-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N |