USN-5531-1: protobuf-c vulnerability

Releases

• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS

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.

Update instructions

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

Ubuntu 22.04

• protobuf-c-compiler - 1.3.3-1ubuntu2.1

Ubuntu 20.04

• protobuf-c-compiler - 1.3.3-1ubuntu0.1

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

References

• CVE-2022-33070

Related notices

• USN-5811-1: sudo-ldap, sudo