- Vulnerability/
- USN-6500-2
USN-6500-2: Squid vulnerabilities
First published: Mon Dec 11 2023(Updated: )
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)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/squid | <3.5.27-1ubuntu1.14+esm1 | 3.5.27-1ubuntu1.14+esm1 |
| Ubuntu | =18.04 | |
| All of | ||
| ubuntu/squid3 | <3.5.27-1ubuntu1.14+esm1 | 3.5.27-1ubuntu1.14+esm1 |
| Ubuntu | =18.04 | |
| All of | ||
| ubuntu/squid | <3.5.12-1ubuntu7.16+esm2 | 3.5.12-1ubuntu7.16+esm2 |
| Ubuntu | =16.04 | |
| All of | ||
| ubuntu/squid3 | <3.5.12-1ubuntu7.16+esm2 | 3.5.12-1ubuntu7.16+esm2 |
| Ubuntu | =16.04 |
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Reference Links
Frequently Asked Questions
What vulnerabilities were fixed in USN-6500-2?
USN-6500-2 addresses vulnerabilities related to improper handling of the Gopher protocol in Squid.
Which versions of Ubuntu are affected by USN-6500-2?
USN-6500-2 affects Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.
How do I update Squid to mitigate the vulnerabilities in USN-6500-2?
You can mitigate the vulnerabilities by updating Squid to the versions specified in USN-6500-2: 3.5.27-1ubuntu1.14+esm1 for 18.04 and 3.5.12-1ubuntu7.16+esm2 for 16.04.
Are there specific packages mentioned in USN-6500-2?
Yes, the packages affected include Squid and Squid3 for the specified Ubuntu versions.
What severity level do the vulnerabilities in USN-6500-2 have?
The vulnerabilities addressed in USN-6500-2 are considered significant due to their potential for exploitation by remote attackers using the Gopher protocol.
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