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CVE-2021-22569

Published: 10 January 2022

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.

Priority

Low

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
protobuf
Launchpad, Ubuntu, Debian
bionic
Released (3.0.0-9.1ubuntu1.1)
focal
Released (3.6.1.3-2ubuntu5.2)
impish Ignored
(reached end-of-life)
jammy
Released (3.12.4-1ubuntu7.22.04.1)
kinetic
Released (3.12.4-1ubuntu7.22.10.1)
trusty
Released (2.5.0-9ubuntu1+esm1)
upstream
Released (3.18.2)
xenial Ignored
(changes too intrusive)
Patches:
upstream: https://github.com/protocolbuffers/protobuf/pull/9371/commits/5ea2bdf6d7483d64a6b02fcf00ee51fbfb80e847

Severity score breakdown

Parameter Value
Base score 5.5
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H