[USN-5491-1] Squid vulnerability


========================================================================== Ubuntu Security Notice USN-5491-1 June 22, 2022
squid, squid3 vulnerability ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 22.04 LTS – Ubuntu 21.10 – Ubuntu 20.04 LTS – Ubuntu 18.04 LTS
Summary:
Squid could be made to crash if it received specially crafted network traffic.
Software Description: – squid: Web proxy cache server – squid3: Web proxy cache server
Details:
Joshua Rogers discovered that Squid incorrectly handled the Gopher protocol. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service.
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 22.04 LTS: squid 5.2-1ubuntu4.1
Ubuntu 21.10: squid 4.13-10ubuntu5.1
Ubuntu 20.04 LTS: squid 4.10-1ubuntu1.6
Ubuntu 18.04 LTS: squid 3.5.27-1ubuntu1.13
In general, a standard system update will make all the necessary changes.
References: ubuntu.com/security/notices/USN-5491-1 CVE-2021-46784
Package Information: launchpad.net/ubuntu/+source/squid/5.2-1ubuntu4.1 launchpad.net/ubuntu/+source/squid/4.13-10ubuntu5.1 launchpad.net/ubuntu/+source/squid/4.10-1ubuntu1.6 launchpad.net/ubuntu/+source/squid3/3.5.27-1ubuntu1.13