USN-6121-1: Nanopb vulnerabilities

Releases

• Ubuntu 20.04 LTS

Packages

• nanopb - Protocol Buffers with small code size

Details

It was discovered that Nanopb incorrectly handled certain decode messages.
An attacker could possibly use this cause a denial of service or expose
sensitive information. (CVE-2020-26243)

It was discovered that Nanopb incorrectly handled certain decode messages.
An attacker could possibly use this issue to cause a denial of service
or execute arbitrary code. (CVE-2021-21401)

Update instructions

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

Ubuntu 20.04

• nanopb - 0.4.1-1ubuntu0.1~esm1
  Available with Ubuntu Pro

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

References

• CVE-2021-21401
• CVE-2020-26243