USN-4065-1: Squid vulnerabilities
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 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)
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
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
Source: USN-4065-1: Squid vulnerabilities
