USN-4065-1: Squid vulnerabilities

Releases

• Ubuntu 19.04
• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM

Packages

• 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

• squid3 - 3.5.27-1ubuntu1.3

Ubuntu 16.04

• squid3 - 3.5.12-1ubuntu7.8

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

References

• CVE-2019-12525
• CVE-2019-12527
• CVE-2019-12529

Related notices

• USN-4065-2: squid3