CVE-2021-22569
protobuf - security update
7.5
HIGH
CVSS 3.1
EPSS 0.47%
Description
An issue in protobuf-java allowed the interleaving of com.google.protobuf.UnknownFieldSet fields in such a way that would be processed out of order. A small malicious payload can occupy the parser for several minutes by creating large numbers of short-lived objects that cause frequent, repeated pauses. We recommend upgrading libraries beyond the vulnerable versions.
How to fix CVE-2021-22569
To remediate CVE-2021-22569, upgrade the affected package to a fixed version below.
- —upgrade to 3.12.4-1+deb11u1 or later
- —upgrade to 3.6.1.3-2+deb10u1 or later
- —upgrade to 3.16.1 or later
- —upgrade to 3.18.2 or later
- —upgrade to 3.19.2 or later
Is CVE-2021-22569 being exploited?
Low — EPSS is 0.5%, meaning exploitation activity has not been observed at scale.
Affected packages (5)
- from 0, < 3.12.4-1+deb11u1
- from 0, < 3.6.1.3-2+deb10u1
- from 0, < 3.16.1
- >= 3.18.0, < 3.18.2
- from 0, < 3.19.2
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 |