CVE-2019-10190CWE-20

A vulnerability was discovered in DNS resolver component of knot resolver through version 3.2.0 before 4.1.0 which allows remote attackers to bypass DNSSEC…

Medium · published July 16, 2019

CVSS v3.0
5.4
EPSS
2%
Percentile
80.5
In the wild
Unconfirmed
What it is

A vulnerability was discovered in DNS resolver component of knot resolver through version 3.2.0 before 4.1.0 which allows remote attackers to bypass DNSSEC validation for non-existence answer. NXDOMAIN answer would get passed through to the client even if its DNSSEC validation failed, instead of sending a SERVFAIL packet. Caching is not affected by this particular bug but see CVE-2019-10191.

The record
Technical detail
CVSS v3.0
5.4 · MEDIUM
Vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.01993 · 80.5th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2019-07-16T17:50Z
EPSS history
Timeline
  • 16 JUL 17:50Z
    A vulnerability was discovered in DNS resolver component of knot resolver through version 3.2.0 before 4.1.0 which allows remote attackers to bypass DNSSEC…
    cvelistv5