Vulnerability in Protobuf-C Project
CVE-2022-33070
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.011 (64.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 64.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: +0.000
Affected products
- Protobuf-C Project — versions 1.4.0
- Fedoraproject Fedora — versions 36
Public proof-of-concept exploits
References
- github.com/protobuf-c/protobuf-c/issues/506 (Exploit, Patch, Third Party Advisory, Issue Tracking)
- github.com/protobuf-c/protobuf-c/pull/508 (Exploit, Patch, Third Party Advisory, Issue Tracking)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2022-33070?
- CVE-2022-33070 is a medium-severity vulnerability in Protobuf-C Project. CVSS score: 5.5/10. Published 2022-06-23.
- How severe is CVE-2022-33070?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2022-33070 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.