CVE-2020-11612
Denial of Service in Netty
7.5
HIGH
CVSS 3.1
EPSS 4.3%
Description
The ZlibDecoders in Netty 4.1.x before 4.1.46 allow for unbounded memory allocation while decoding a ZlibEncoded byte stream. An attacker could send a large ZlibEncoded byte stream to the Netty server, forcing the server to allocate all of its free memory to a single decoder.
How to fix CVE-2020-11612
To remediate CVE-2020-11612, upgrade the affected package to a fixed version below.
- Debian/netty—upgrade to 1:4.1.48-1 or later
- —upgrade to 4.1.46 or later
Is CVE-2020-11612 being exploited?
Low — EPSS is 4.3%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1:4.1.48-1
- >= 4.1.0, < 4.1.46
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |