CVE-2022-33070 Denial of service in n/a

Medium 5.5 Published Updated

Attackers can cause a Denial of Service in applications using Protobuf-c via an invalid arithmetic shift in the tag parsing function.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2022-33070?

CVE-2022-33070 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 22 Jun 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official 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.

Which versions are affected by CVE-2022-33070?

It affects 2 products.

Products include Fedoraproject Fedora, Protobuf-C Project Protobuf-C.

How do I fix CVE-2022-33070?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2022-33070 being exploited?

There is no known exploitation of CVE-2022-33070 in the wild and no public exploit code.

All Fedoraproject Fedora vulnerabilities

Sources

Also known as ALPINE-CVE-2022-33070, AZL-9973, DEBIAN-CVE-2022-33070, GHSA-xcrq-6j7j-784j, OESA-2022-1789, OESA-2022-1904 and 3 more.

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