Ubuntu Security Notices
USN-4673-1

USN-4673-1: libproxy vulnerability

Publication date

4 January 2021

Overview

libproxy could be made to crash or execute arbitrary code if it received a specially crafted file.

Releases

20.10 20.04 LTS 18.04 LTS 16.04 LTS

Packages

libproxy - automatic proxy configuration management library

Details

Li Fei discovered that libproxy incorrectly handled certain PAC files.
An attacker could possibly use this issue to cause a crash or execute arbitrary
code.

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
20.10 groovy	libproxy1v5 – 0.4.15-13ubuntu1.1
20.04 focal	libproxy1v5 – 0.4.15-10ubuntu1.2
18.04 bionic	libproxy1v5 – 0.4.15-1ubuntu0.2
16.04 xenial	libproxy1v5 – 0.4.11-5ubuntu1.2

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References

CVE-2020-26154

CVE-2020-26154