CVE-2021-37137
Published: 19 October 2021
The Snappy frame decoder function doesn't restrict the chunk length which may lead to excessive memory usage. Beside this it also may buffer reserved skippable chunks until the whole chunk was received which may lead to excessive memory usage as well. This vulnerability can be triggered by supplying malicious input that decompresses to a very big size (via a network stream or a file) or by sending a huge skippable chunk.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
netty Launchpad, Ubuntu, Debian |
focal |
Released
(1:4.1.45-1ubuntu0.1~esm1)
Available with Ubuntu Pro |
| hirsute |
Ignored
(end of life)
|
|
| impish |
Ignored
(end of life)
|
|
| lunar |
Needs triage
|
|
| trusty |
Needs triage
|
|
| upstream |
Needs triage
|
|
| jammy |
Released
(1:4.1.48-4+deb11u1build0.22.04.1)
|
|
| kinetic |
Released
(1:4.1.48-5ubuntu0.1)
|
|
| xenial |
Released
(1:4.0.34-1ubuntu0.1~esm1)
Available with Ubuntu Pro |
|
| bionic |
Released
(1:4.1.7-4ubuntu0.1+esm2)
Available with Ubuntu Pro |
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |