CVE-2022-33070: Fedoraproject Fedora

Medium severity, CVSS 5.5. EPSS: 1.1% chance of exploitation in the next 30 days.

Protobuf-c v1.4.0 was discovered to contain an invalid arithmetic shift via the function parse_tag_and_wiretype in protobuf-c/protobuf-c.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via unspecified vectors.

Affected products

• Fedoraproject Fedora: version 36 only
• Protobuf-C Project Protobuf-C: version 1.4.0 only

Published 2022-06-23. Last modified 2026-10-08.