CVE & CISA-KEV Catalog

CVE-2021-22569

HIGHEPSS 74th pctl
7.5
CVSS v3
NVD

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.

CWE-696

How to fix

Remediation Available
protobufDebian
Fixed in:3.12.4-1+deb11u1CVE-2021-22569
Fixed in:3.21.9-3CVE-2021-22569
Fixed in:3.21.9-3CVE-2021-22569
Fixed in:3.21.9-3CVE-2021-22569
libprotobuf-javaUbuntu
Fixed in:3.12.4-1ubuntu7.22.04.1USN-5945-1
Fixed in:3.12.4-1ubuntu7.22.10.1USN-5945-1
libprotobuf-lite10Ubuntu
Fixed in:3.0.0-9.1ubuntu1.1USN-5945-1
libprotobuf-lite17Ubuntu
Fixed in:3.6.1.3-2ubuntu5.2USN-5945-1
libprotobuf-lite23Ubuntu
Fixed in:3.12.4-1ubuntu7.22.04.1USN-5945-1
Fixed in:3.12.4-1ubuntu7.22.10.1USN-5945-1
libprotobuf-lite8Ubuntu
Fixed in:2.5.0-9ubuntu1+esm1USN-5945-1
libprotobuf10Ubuntu
Fixed in:3.0.0-9.1ubuntu1.1USN-5945-1
libprotobuf23Ubuntu
Fixed in:3.12.4-1ubuntu7.22.04.1USN-5945-1
Fixed in:3.12.4-1ubuntu7.22.10.1USN-5945-1
libprotobuf8Ubuntu
Fixed in:2.5.0-9ubuntu1+esm1USN-5945-1
libprotoc-devUbuntu
Fixed in:3.6.1.3-2ubuntu5.2USN-5945-1
libprotoc10Ubuntu
Fixed in:3.0.0-9.1ubuntu1.1USN-5945-1
libprotoc17Ubuntu
Fixed in:3.6.1.3-2ubuntu5.2USN-5945-1
libprotoc23Ubuntu
Fixed in:3.12.4-1ubuntu7.22.04.1USN-5945-1
Fixed in:3.12.4-1ubuntu7.22.10.1USN-5945-1
libprotoc8Ubuntu
Fixed in:2.5.0-9ubuntu1+esm1USN-5945-1
protobufUbuntu
Fixed in:2.5.0-9ubuntu1+esm1USN-5945-1
Fixed in:3.0.0-9.1ubuntu1.1USN-5945-1
Fixed in:3.6.1.3-2ubuntu5.2USN-5945-1
Fixed in:3.12.4-1ubuntu7.22.04.1USN-5945-1
Fixed in:3.12.4-1ubuntu7.22.10.1USN-5945-1
protobuf-compilerUbuntu
Fixed in:2.5.0-9ubuntu1+esm1USN-5945-1
Fixed in:3.0.0-9.1ubuntu1.1USN-5945-1
Fixed in:3.6.1.3-2ubuntu5.2USN-5945-1
Fixed in:3.12.4-1ubuntu7.22.04.1USN-5945-1
Fixed in:3.12.4-1ubuntu7.22.10.1USN-5945-1
python-protobufUbuntu
Fixed in:3.0.0-9.1ubuntu1.1USN-5945-1
Fixed in:3.6.1.3-2ubuntu5.2USN-5945-1
python3-protobufUbuntu
Fixed in:3.0.0-9.1ubuntu1.1USN-5945-1
Fixed in:3.6.1.3-2ubuntu5.2USN-5945-1
Fixed in:3.12.4-1ubuntu7.22.04.1USN-5945-1
Fixed in:3.12.4-1ubuntu7.22.10.1USN-5945-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

1.65%probability of exploitation in 30 days
74thpercentile

Elevated risk: more likely to be exploited than 74% of all known CVEs.

References

Vendor Advisory1
Third-Party Advisory2
Other references1
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.