USN-5491-1: Squid vulnerability

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

• squid - 5.2-1ubuntu4.1

Ubuntu 21.10

• squid - 4.13-10ubuntu5.1

Ubuntu 20.04

• squid - 4.10-1ubuntu1.6

Ubuntu 18.04

• squid - 3.5.27-1ubuntu1.13

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

References

• CVE-2021-46784