# CVE-2022-3510: protobuf: A parsing issue similar to CVE-2022-3171, but with Message-Type Extensions in protobuf-java core and lite versions pr...

CVE-2022-3510 is fixed in protobuf on 1 platform, first by DEBIAN-CVE-2022-3510, released December 12, 2022. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2022-3510
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0072
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 12, 2022

## Description

A parsing issue similar to CVE-2022-3171, but with Message-Type Extensions in protobuf-java core and lite versions prior to 3.21.7, 3.20.3, 3.19.6 and 3.16.3 can lead to a denial of service attack. Inputs containing multiple instances of non-repeated embedded messages with repeated or unknown fields causes objects to be converted back-n-forth between mutable and immutable forms, resulting in potentially long garbage collection pauses. We recommend updating to the versions mentioned above.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | protobuf Debian 12.15 (bookworm) | 3.21.9-3 | [DEBIAN-CVE-2022-3510](https://patchblox.com/security/data/fix/linux/debian-cve-2022-3510.md) | Dec 12, 2022 |
| Linux | protobuf Debian 13.5 (trixie) | 3.21.9-3 | [DEBIAN-CVE-2022-3510](https://patchblox.com/security/data/fix/linux/debian-cve-2022-3510.md) | Dec 12, 2022 |
| Linux | protobuf Debian 14 | 3.21.9-3 | [DEBIAN-CVE-2022-3510](https://patchblox.com/security/data/fix/linux/debian-cve-2022-3510.md) | Dec 12, 2022 |

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