Description
A parsing vulnerability for the MessageSet type in the ProtocolBuffers versions prior to and including 3.16.1, 3.17.3, 3.18.2, 3.19.4, 3.20.1 and 3.21.5 for protobuf-cpp, and versions prior to and including 3.16.1, 3.17.3, 3.18.2, 3.19.4, 3.20.1 and 4.21.5 for protobuf-python can lead to out of memory failures. A specially crafted message with multiple key-value per elements creates parsing issues, and can lead to a Denial of Service against services receiving unsanitized input. We recommend upgrading to versions 3.18.3, 3.19.5, 3.20.2, 3.21.6 for protobuf-cpp and 3.18.3, 3.19.5, 3.20.2, 4.21.6 for protobuf-python. Versions for 3.16 and 3.17 are no longer updated.
Published: 2022-09-22
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-3393-1 protobuf security update
EUVD EUVD EUVD-2022-6743 A parsing vulnerability for the MessageSet type in the ProtocolBuffers versions prior to and including 3.16.1, 3.17.3, 3.18.2, 3.19.4, 3.20.1 and 3.21.5 for protobuf-cpp, and versions prior to and including 3.16.1, 3.17.3, 3.18.2, 3.19.4, 3.20.1 and 4.21.5 for protobuf-python can lead to out of memory failures. A specially crafted message with multiple key-value per elements creates parsing issues, and can lead to a Denial of Service against services receiving unsanitized input. We recommend upgrading to versions 3.18.3, 3.19.5, 3.20.2, 3.21.6 for protobuf-cpp and 3.18.3, 3.19.5, 3.20.2, 4.21.6 for protobuf-python. Versions for 3.16 and 3.17 are no longer updated.
Github GHSA Github GHSA GHSA-8gq9-2x98-w8hf protobuf-cpp and protobuf-python have potential Denial of Service issue
Ubuntu USN Ubuntu USN USN-5769-1 protobuf vulnerabilities
Ubuntu USN Ubuntu USN USN-5945-1 Protocol Buffers vulnerabilities
History

Wed, 25 Feb 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 11 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00094}

epss

{'score': 0.0011}


Wed, 14 May 2025 02:15:00 +0000

Type Values Removed Values Added
First Time appeared Redhat
Redhat enterprise Linux
CPEs cpe:/a:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux

Subscriptions

Debian Debian Linux
Fedoraproject Fedora
Google Protobuf-cpp Protobuf-python
Redhat Enterprise Linux
cve-icon MITRE

Status: PUBLISHED

Assigner: Google

Published:

Updated: 2024-08-03T00:24:42.594Z

Reserved: 2022-05-30T00:00:00.000Z

Link: CVE-2022-1941

cve-icon Vulnrichment

Updated: 2024-08-03T00:24:42.594Z

cve-icon NVD

Status : Modified

Published: 2022-09-22T15:15:09.203

Modified: 2024-11-21T06:41:47.920

Link: CVE-2022-1941

cve-icon Redhat

Severity : Moderate

Publid Date: 2022-09-22T00:00:00Z

Links: CVE-2022-1941 - Bugzilla

cve-icon OpenCVE Enrichment

No data.