CVE-2019-20444
netty - security update
9.1
CRITICAL
CVSS 3.1
EPSS 18.3%
Description
HttpObjectDecoder.java in Netty before 4.1.44 allows an HTTP header that lacks a colon, which might be interpreted as a separate header with an incorrect syntax, or might be interpreted as an "invalid fold."
How to fix CVE-2019-20444
To remediate CVE-2019-20444, upgrade the affected package to a fixed version below.
- Debian/netty—upgrade to 1:4.1.45-1 or later
- —upgrade to 1:3.2.6.Final-2+deb8u2 or later
- —upgrade to 1:4.1.7-2+deb9u2 or later
- —upgrade to 1:4.1.33-1+deb10u2 or later
- —no fix listed
- —upgrade to 4.1.44 or later
- —no fix listed
Is CVE-2019-20444 being exploited?
Moderate — EPSS is 18.3%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (7)
- from 0, < 1:4.1.45-1
- from 0, < 1:3.2.6.Final-2+deb8u2
- from 0, < 1:4.1.7-2+deb9u2
- from 0, < 1:4.1.33-1+deb10u2
- from 0
- from 0, < 4.1.44
- from 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |