Ubuntu Security Update USN-4059-1: Squid vulnerabilities

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squid, squid3 vulnerabilities


A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 19.04
  • Ubuntu 18.04 LTS
  • Ubuntu 16.04 LTS
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 certain SNMP packets. A remote attacker could possibly use this issue to cause memory consumption, leading to a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2018-19132)

It was discovered that Squid incorrectly handled the cachemgr.cgi web module. A remote attacker could possibly use this issue to conduct cross-site scripting (XSS) attacks. (CVE-2019-13345)

Update instructions


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

Ubuntu 19.04
squid - 4.4-1ubuntu2.1
Ubuntu 18.04 LTS
squid3 - 3.5.27-1ubuntu1.2
Ubuntu 16.04 LTS
squid3 - 3.5.12-1ubuntu7.7

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References


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