What’s Vulnerable › Vulnerabilities

CVE-2022-33070

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-06-23 · updated 2026-10-08

Description

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: 36
• Protobuf-C Project Protobuf-C: 1.4.0

References

• https://github.com/protobuf-c/protobuf-c/issues/506
• https://github.com/protobuf-c/protobuf-c/pull/508
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FFN2GHUEGTSHRD7J5PKQ5DRSJSEQ2IKN/
• https://github.com/protobuf-c/protobuf-c/issues/506
• https://github.com/protobuf-c/protobuf-c/pull/508
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FFN2GHUEGTSHRD7J5PKQ5DRSJSEQ2IKN/

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