USN-5476-1: Liblouis vulnerabilities

Releases

• Ubuntu 22.04 LTS
• Ubuntu 21.10
• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM

Packages

• liblouis - Braille translation library - utilities

Details

Han Zheng discovered that Liblouis incorrectly handled certain inputs.
An attacker could possibly use this issue to cause a crash. This issue was
addressed in Ubuntu 21.10 and Ubuntu 22.04 LTS. (CVE-2022-26981)

It was discovered that Liblouis incorrectly handled certain inputs.
An attacker could possibly use this issue to execute arbitrary code
or cause a crash. (CVE-2022-31783)

Update instructions

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

Ubuntu 22.04

• liblouis20 - 3.20.0-2ubuntu0.1
• liblouis-bin - 3.20.0-2ubuntu0.1

Ubuntu 21.10

• liblouis20 - 3.18.0-1ubuntu0.2
• liblouis-bin - 3.18.0-1ubuntu0.2

Ubuntu 20.04

• liblouis20 - 3.12.0-3ubuntu0.1
• liblouis-bin - 3.12.0-3ubuntu0.1

Ubuntu 18.04

• liblouis-bin - 3.5.0-1ubuntu0.4
• liblouis14 - 3.5.0-1ubuntu0.4

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

References

• CVE-2022-31783
• CVE-2022-26981