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Ubuntu 20.04 LTS: USN-4568-1 Moderate: Brotli Crash Risk Due to Input

ubuntu
Calendar Grey October 5, 2020
Dist Ubuntu Esm H88
The Ubuntu Security Announcement USN-4569-1 highlights a vulnerability in libpng that could lead to application instability when handling malformed images.
Brotli could be made to crash if it received a specially crafted input.

Summary

Brotli could be made to crash if it received a specially crafted

input.

Software Description:

- brotli: lossless compression algorithm and format (command line utility)

Details:

It was discovered that Brotli incorrectly handled certain inputs.

An attacker could possibly use this issue to cause a crash.

Topics%20covered

Topics Covered

security advisory software issue ubuntu crash brotli

Update Instructions

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

Ubuntu 20.04 LTS:
  brotli                          1.0.7-6ubuntu0.1
  libbrotli1                      1.0.7-6ubuntu0.1
  python3-brotli                  1.0.7-6ubuntu0.1

Ubuntu 18.04 LTS:
  brotli                          1.0.3-1ubuntu1.3
  libbrotli1                      1.0.3-1ubuntu1.3
  python-brotli                   1.0.3-1ubuntu1.3
  python3-brotli                  1.0.3-1ubuntu1.3

Ubuntu 16.04 LTS:
  brotli                          1.0.3-1ubuntu1~16.04.2
  libbrotli1                      1.0.3-1ubuntu1~16.04.2
  python-brotli                   1.0.3-1ubuntu1~16.04.2
  python3-brotli                  1.0.3-1ubuntu1~16.04.2

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

References

CVE-2020-8927

Severity
important
Lowest
Low
Medium
High
Critical

October 05, 2020

Topics%20covered

Topics Covered

security advisory software issue ubuntu crash brotli

Package Information

https://launchpad.net/ubuntu/+source/brotli/1.0.7-6ubuntu0.1
https://launchpad.net/ubuntu/+source/brotli/1.0.3-1ubuntu1.3
https://launchpad.net/ubuntu/+source/brotli/1.0.3-1ubuntu1~16.04.2

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