USN-6500-2: Squid vulnerabilities

Packages

squid3 - Web proxy cache server

Details

USN-6500-1 fixed several vulnerabilities in Squid. This update provides
the corresponding update for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.

Original advisory 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. Gopher support has been disabled
in this update. (CVE-2023-46728)

Joshua Rogers discovered that Squid incorrectly handled HTTP Digest
Authentication. A remote attacker could possibly use this issue to cause
Squid to crash, resulting in a denial of service. (CVE-2023-46847)

USN-6500-1 fixed several vulnerabilities in Squid. This update provides
the corresponding update for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.

Original advisory 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. Gopher support has been disabled
in this update. (CVE-2023-46728)

Joshua Rogers discovered that Squid incorrectly handled HTTP Digest
Authentication. A remote attacker could possibly use this issue to cause
Squid to crash, resulting in a denial of service. (CVE-2023-46847)

Update instructions

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

Learn more about how to get the fixes.

Ubuntu Release	Package Version
18.04 bionic	squid – 3.5.27-1ubuntu1.14+esm1
18.04 bionic	squid3 – 3.5.27-1ubuntu1.14+esm1
16.04 xenial	squid – 3.5.12-1ubuntu7.16+esm2
16.04 xenial	squid3 – 3.5.12-1ubuntu7.16+esm2

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References

USN-6500-1

USN-6500-1

Packages

Details

Update instructions

Reduce your security exposure

References

Related notices