1. Ubuntu Security Notices
  2. USN-6121-1

USN-6121-1: Nanopb vulnerabilities

Publication date

30 May 2023

Overview

Several security issues were fixed in Nanopb.

Releases

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)

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

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
20.04 focal nanopb –  0.4.1-1ubuntu0.1~esm1  

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References

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