# CVE-2022-33070: libprotobuf-c1: Protobuf-c v1.4.0 was discovered to contain an invalid arithmetic shift viathe function parse_tag_and_wiretype in pro...

CVE-2022-33070 is fixed in 9 products on 1 platform, first by libprotobuf-c1 1.3.3-1ubuntu0.1, released June 23, 2022. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2022-33070
- Priority: Routine
- CVSS: 5.5 (Medium)
- EPSS: 0.0111
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 23, 2022

## Description

Protobuf-c v1.4.0 was discovered to contain an invalid arithmetic shift viathe function parse_tag_and_wiretype in protobuf-c/protobuf-c.c. Thisvulnerability allows attackers to cause a Denial of Service (DoS) viaunspecified vectors.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libprotobuf-c1 Ubuntu 20.04 LTS (focal) | 1.3.3-1ubuntu0.1 | [libprotobuf-c1 1.3.3-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libprotobuf-c1-1.3.3-1ubuntu0.1.md) | Jun 23, 2022 |
| Linux | libprotobuf-c1 Ubuntu 22.04.1 LTS (jammy) | 1.3.3-1ubuntu2.1 | [libprotobuf-c1 1.3.3-1ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libprotobuf-c1-1.3.3-1ubuntu2.1.md) | Jun 23, 2022 |
| Linux | libprotobuf-c1 Ubuntu 24.10 (oracular) | 1.4.1-1ubuntu1 | [libprotobuf-c1 1.4.1-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libprotobuf-c1-1.4.1-1ubuntu1.md) | Jan 16, 2026 |
| Linux | libprotobuf-c1 Ubuntu 25.04 (plucky) | 1.4.1-1ubuntu1 | [libprotobuf-c1 1.4.1-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libprotobuf-c1-1.4.1-1ubuntu1.md) | Jan 16, 2026 |
| Linux | protobuf-c Debian 12.15 (bookworm) | 1.4.1-1 | [DEBIAN-CVE-2022-33070](https://patchblox.com/security/data/fix/linux/debian-cve-2022-33070.md) | Jun 23, 2022 |
| Linux | protobuf-c Debian 13.5 (trixie) | 1.4.1-1 | [DEBIAN-CVE-2022-33070](https://patchblox.com/security/data/fix/linux/debian-cve-2022-33070.md) | Jun 23, 2022 |
| Linux | protobuf-c Debian 14 | 1.4.1-1 | [DEBIAN-CVE-2022-33070](https://patchblox.com/security/data/fix/linux/debian-cve-2022-33070.md) | Jun 23, 2022 |
| Linux | protobuf-c amzn 2023 | 1.4.1-2.amzn2023.0.2 | [ALAS2023-2023-086](https://patchblox.com/security/data/fix/linux/alas2023-2023-086.md) | Feb 17, 2023 |
| Linux | protobuf-c-compiler Ubuntu 20.04 LTS (focal) | 1.3.3-1ubuntu0.1 | [protobuf-c-compiler 1.3.3-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-protobuf-c-compiler-1.3.3-1ubuntu0.1.md) | Jun 23, 2022 |
| Linux | protobuf-c-compiler Ubuntu 22.04.1 LTS (jammy) | 1.3.3-1ubuntu2.1 | [protobuf-c-compiler 1.3.3-1ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-protobuf-c-compiler-1.3.3-1ubuntu2.1.md) | Jun 23, 2022 |
| Linux | protobuf-c-compiler Ubuntu 24.10 (oracular) | 1.4.1-1ubuntu1 | [protobuf-c-compiler 1.4.1-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-protobuf-c-compiler-1.4.1-1ubuntu1.md) | Jan 16, 2026 |
| Linux | protobuf-c-compiler Ubuntu 25.04 (plucky) | 1.4.1-1ubuntu1 | [protobuf-c-compiler 1.4.1-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-protobuf-c-compiler-1.4.1-1ubuntu1.md) | Jan 16, 2026 |
| Linux | protobuf-c-compiler amzn 2023 | 1.4.1-2.amzn2023.0.2 | [ALAS2023-2023-086](https://patchblox.com/security/data/fix/linux/alas2023-2023-086.md) | Feb 17, 2023 |
| Linux | protobuf-c-compiler-debuginfo amzn 2023 | 1.4.1-2.amzn2023.0.2 | [ALAS2023-2023-086](https://patchblox.com/security/data/fix/linux/alas2023-2023-086.md) | Feb 17, 2023 |
| Linux | protobuf-c-debuginfo amzn 2023 | 1.4.1-2.amzn2023.0.2 | [ALAS2023-2023-086](https://patchblox.com/security/data/fix/linux/alas2023-2023-086.md) | Feb 17, 2023 |
| Linux | protobuf-c-debugsource amzn 2023 | 1.4.1-2.amzn2023.0.2 | [ALAS2023-2023-086](https://patchblox.com/security/data/fix/linux/alas2023-2023-086.md) | Feb 17, 2023 |
| Linux | protobuf-c-devel amzn 2023 | 1.4.1-2.amzn2023.0.2 | [ALAS2023-2023-086](https://patchblox.com/security/data/fix/linux/alas2023-2023-086.md) | Feb 17, 2023 |
| Linux | sudo Ubuntu 22.04.1 LTS (jammy) | 1.9.9-1ubuntu2.2 | [sudo 1.9.9-1ubuntu2.2](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-sudo-1.9.9-1ubuntu2.2.md) | Jan 17, 2023 |
| Linux | sudo-ldap Ubuntu 22.04.1 LTS (jammy) | 1.9.9-1ubuntu2.2 | [sudo-ldap 1.9.9-1ubuntu2.2](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-sudo-ldap-1.9.9-1ubuntu2.2.md) | Jan 17, 2023 |

---

Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.