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Ubuntu 20.04 LTS: USN-4514-1 Critical: Libproxy Denial of Service

ubuntu
Calendar Grey September 17, 2020
Dist Ubuntu Esm H88
A flaw within Libproxy could lead to a denial of service in Ubuntu platforms. Update guidance has been provided for impacted versions.
libproxy could be made to crash if it received a specially crafted PAC file.

Summary

libproxy could be made to crash if it received a specially crafted PAC file.

Software Description:

- libproxy: automatic proxy configuration management library

Details:

It was discovered that libproxy incorrectly handled certain PAC files.

An attacker could possibly use this issue to cause a denial of service.

Topics%20covered

Topics Covered

security advisory denial of service security issue software update Ubuntu crash libproxy

Update Instructions

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

Ubuntu 20.04 LTS:
  libproxy1v5                     0.4.15-10ubuntu1.1

Ubuntu 18.04 LTS:
  libproxy1v5                     0.4.15-1ubuntu0.1

Ubuntu 16.04 LTS:
  libproxy1v5                     0.4.11-5ubuntu1.1

After a standard system update you need to restart your session to make
all the necessary changes.

References

https://ubuntu.com/security/notices/USN-4514-1

CVE-2020-25219

Severity
critical
Lowest
Low
Medium
High
Critical

September 17, 2020

Topics%20covered

Topics Covered

security advisory denial of service security issue software update Ubuntu crash libproxy

Package Information

https://launchpad.net/ubuntu/+source/libproxy/0.4.15-10ubuntu1.1
https://launchpad.net/ubuntu/+source/libproxy/0.4.15-1ubuntu0.1
https://launchpad.net/ubuntu/+source/libproxy/0.4.11-5ubuntu1.1

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