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Ubuntu Security Notice USN-6594-1
January 23, 2024
squid vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 23.10
- Ubuntu 23.04
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
Summary:
Several security issues were fixed in Squid.
Software Description:
- squid: Web proxy cache server
Details:
Joshua Rogers discovered that Squid incorrectly handled HTTP message
processing. A remote attacker could possibly use this issue to cause
Squid to crash, resulting in a denial of service. (CVE-2023-49285)
Joshua Rogers discovered that Squid incorrectly handled Helper process
management. A remote attacker could possibly use this issue to cause
Squid to crash, resulting in a denial of service. (CVE-2023-49286)
Joshua Rogers discovered that Squid incorrectly handled HTTP request
parsing. A remote attacker could possibly use this issue to cause
Squid to crash, resulting in a denial of service. (CVE-2023-50269)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 23.10:
   squid                           6.1-2ubuntu1.2
Ubuntu 23.04:
   squid                           5.7-1ubuntu3.2
Ubuntu 22.04 LTS:
   squid                           5.7-0ubuntu0.22.04.3
Ubuntu 20.04 LTS:
   squid                           4.10-1ubuntu1.9
In general, a standard system update will make all the necessary changes.
References:
   https://ubuntu.com/security/notices/USN-6594-1
   CVE-2023-49285, CVE-2023-49286, CVE-2023-50269
Package Information:
   https://launchpad.net/ubuntu/+source/squid/6.1-2ubuntu1.2
   https://launchpad.net/ubuntu/+source/squid/5.7-1ubuntu3.2
   https://launchpad.net/ubuntu/+source/squid/5.7-0ubuntu0.22.04.3
   https://launchpad.net/ubuntu/+source/squid/4.10-1ubuntu1.9