==========================================================================
Ubuntu Security Notice USN-4673-1
January 04, 2021
libproxy vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 20.10
– Ubuntu 20.04 LTS
– Ubuntu 18.04 LTS
– Ubuntu 16.04 LTS
Summary:
libproxy could be made to crash or execute arbitrary code if it received a specially
crafted file.
Software Description:
– 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:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 20.10:
libproxy1v5 0.4.15-13ubuntu1.1
Ubuntu 20.04 LTS:
libproxy1v5 0.4.15-10ubuntu1.2
Ubuntu 18.04 LTS:
libproxy1v5 0.4.15-1ubuntu0.2
Ubuntu 16.04 LTS:
libproxy1v5 0.4.11-5ubuntu1.2
In general, a standard system update will make all the necessary changes.
References:
https://usn.ubuntu.com/4673-1
CVE-2020-26154
Package Information:
https://launchpad.net/ubuntu/+source/libproxy/0.4.15-13ubuntu1.1
https://launchpad.net/ubuntu/+source/libproxy/0.4.15-10ubuntu1.2
https://launchpad.net/ubuntu/+source/libproxy/0.4.15-1ubuntu0.2
https://launchpad.net/ubuntu/+source/libproxy/0.4.11-5ubuntu1.2
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