- Vulnerability/
- USN-6500-1
USN-6500-1: Squid vulnerabilities
First published: Tue Nov 21 2023(Updated: )
Joshua Rogers discovered that Squid incorrectly handled validating certain SSL certificates. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service. This issue only affected Ubuntu 22.04 LTS, Ubuntu 23.04, and Ubuntu 23.10. (CVE-2023-46724) 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. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, and Ubuntu 23.04. (CVE-2023-46728) Keran Mu and Jianjun Chen discovered that Squid incorrectly handled the chunked decoder. A remote attacker could possibly use this issue to perform HTTP request smuggling attacks. (CVE-2023-46846) 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) Joshua Rogers discovered that Squid incorrectly handled certain FTP urls. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service. (CVE-2023-46848)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/squid | <6.1-2ubuntu1.1 | 6.1-2ubuntu1.1 |
| Ubuntu Ubuntu | =23.10 | |
| All of | ||
| ubuntu/squid | <5.7-1ubuntu3.1 | 5.7-1ubuntu3.1 |
| Ubuntu Ubuntu | =23.04 | |
| All of | ||
| ubuntu/squid | <5.7-0ubuntu0.22.04.2 | 5.7-0ubuntu0.22.04.2 |
| Ubuntu Ubuntu | =22.04 | |
| All of | ||
| ubuntu/squid | <4.10-1ubuntu1.8 | 4.10-1ubuntu1.8 |
| Ubuntu Ubuntu | =20.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2023-46724
- https://ubuntu.com/security/CVE-2023-46848
- https://ubuntu.com/security/CVE-2023-46846
- https://ubuntu.com/security/CVE-2023-46847
- https://ubuntu.com/security/CVE-2023-46728
- https://ubuntu.com/security/notices/USN-6500-2
- https://launchpad.net/ubuntu/+source/squid/6.1-2ubuntu1.1
- https://launchpad.net/ubuntu/+source/squid/5.7-1ubuntu3.1
- https://launchpad.net/ubuntu/+source/squid/5.7-0ubuntu0.22.04.2
- https://launchpad.net/ubuntu/+source/squid/4.10-1ubuntu1.8
- https://ubuntu.com/security/notices/USN-6500-1 (Advisory)
Child vulnerabilities
(Contains the following vulnerabilities)
- agent/severity
- agent/type
- agent/last-modified-date
- agent/softwarecombine
- agent/first-publish-date
- collector/usn
- source/Ubuntu
- anchor-related/USN-6500-2
- agent/software-canonical-lookup
- agent/references
- agent/title
- agent/tags
- agent/description
- agent/event
- agent/trending
- package-manager/ubuntu
- vendor/ubuntu
- canonical/ubuntu ubuntu
- version/ubuntu ubuntu/23.10
- version/ubuntu ubuntu/23.04
- version/ubuntu ubuntu/22.04
- version/ubuntu ubuntu/20.04