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Ubuntu: USN-4065-1 Denial Of Service Threat In Squid Software

ubuntu
Calendar Grey July 18, 2019
Dist Ubuntu Esm H88
Several vulnerabilities discovered in Squid on Ubuntu highlighted by USN-4065-1. Ensure your software is up to date to safeguard against these risks.
Several security issues were fixed in Squid.

Summary

Several security issues were fixed in Squid.

Software Description:

- squid: Web proxy cache server

- squid3: Web proxy cache server

Details:

It was discovered that Squid incorrectly handled Digest authentication. A

remote attacker could possibly use this issue to cause Squid to crash,

resulting in a denial of service. (CVE-2019-12525)

It was discovered that Squid incorrectly handled Basic authentication. A

remote attacker could use this issue to cause Squid to crash, resulting in

a denial of service, or possibly execute arbitrary code. This issue only

affected Ubuntu 19.04. (CVE-2019-12527)

It was discovered that Squid incorrectly handled Basic authentication. A

remote attacker could possibly use this issue to cause Squid to crash,

resulting in a denial of service. (CVE-2019-12529)

Topics%20covered

Topics Covered

security advisory security issue software update Ubuntu authentication issue squid Denial of Service

Update Instructions

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

Ubuntu 19.04:
  squid                           4.4-1ubuntu2.2

Ubuntu 18.04 LTS:
  squid3                          3.5.27-1ubuntu1.3

Ubuntu 16.04 LTS:
  squid3                          3.5.12-1ubuntu7.8

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

References

https://ubuntu.com/security/notices/USN-4065-1

CVE-2019-12525, CVE-2019-12527, CVE-2019-12529

Severity
important
Lowest
Low
Medium
High
Critical

July 18, 2019

Topics%20covered

Topics Covered

security advisory security issue software update Ubuntu authentication issue squid Denial of Service

Package Information

https://launchpad.net/ubuntu/+source/squid/4.4-1ubuntu2.2
https://launchpad.net/ubuntu/+source/squid3/3.5.27-1ubuntu1.3
https://launchpad.net/ubuntu/+source/squid3/3.5.12-1ubuntu7.8

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