Headline
Ubuntu Security Notice USN-6594-1
Ubuntu Security Notice 6594-1 - 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. 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. 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.
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Ubuntu Security Notice USN-6594-1
January 23, 2024
squid vulnerabilities
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
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Squid is a caching proxy for the Web. Due to an Uncontrolled Recursion bug in versions 2.6 through 2.7.STABLE9, versions 3.1 through 5.9, and versions 6.0.1 through 6.5, Squid may be vulnerable to a Denial of Service attack against HTTP Request parsing. This problem allows a remote client to perform Denial of Service attack by sending a large X-Forwarded-For header when the follow_x_forwarded_for feature is configured. This bug is fixed by Squid version 6.6. In addition, patches addressing this problem for the stable releases can be found in Squid's patch archives.
Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to a Buffer Overread bug Squid is vulnerable to a Denial of Service attack against Squid HTTP Message processing. This bug is fixed by Squid version 6.5. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to an Incorrect Check of Function Return Value bug Squid is vulnerable to a Denial of Service attack against its Helper process management. This bug is fixed by Squid version 6.5. Users are advised to upgrade. There are no known workarounds for this vulnerability.