1. Ubuntu Security Notices
  2. USN-5531-1

USN-5531-1: protobuf-c vulnerability

Publication date

26 July 2022

Overview

Several security issues were fixed in protobuf-c.

Releases

Packages

  • protobuf-c - Protocol Buffers C static library and headers (protobuf-c)

Details

Pietro Borrello discovered that protobuf-c contained an invalid
arithmetic shift. This vulnerability allowed attackers to cause a
denial of service (system crash) via unspecified vectors
(CVE-2022-33070).

It was discovered that protobuf-c contained an unsigned integer
overflow. This vulnerability allowed attackers to cause a denial of
service (system crash) via unspecified vectors.

Todd Miller discovered that protobuf-c contained a possible NULL
dereference. This could cause a vulnerability that allowed attackers to
cause a denial of service (system crash) via unspecified vectors.

Pietro Borrello discovered that protobuf-c contained an invalid
arithmetic shift. This vulnerability allowed attackers to cause a
denial of service (system crash) via unspecified vectors
(CVE-2022-33070).

It was discovered that protobuf-c contained an unsigned integer
overflow. This vulnerability allowed attackers to cause a denial of
service (system crash) via unspecified vectors.

Todd Miller discovered that protobuf-c contained a possible NULL
dereference. This could cause a vulnerability that allowed attackers to
cause a denial of service (system crash) via unspecified vectors.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
22.04 jammy protobuf-c-compiler –  1.3.3-1ubuntu2.1
20.04 focal protobuf-c-compiler –  1.3.3-1ubuntu0.1

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References

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