SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-22569

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.

MEDIUM 5.5EPSS 1.67%

Does this matter?

Lower severity and a low EPSS score (1.67%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 3.1
5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS
1.67% probability · 75th percentile
CISA KEV
Not listed
Weakness
CWE-696
Affected
google/google-protobuf · google/protobuf-java · google/protobuf-kotlin · oracle/communications cloud native core console · oracle/communications cloud native core network repository function · oracle/communications cloud native core policy · oracle/spatial and graph mapviewer
Source
cve-coordination@google.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.