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AUSCERT External Security Bulletin Redistribution
ESB-2024.2189
USN-6728-1: Squid vulnerabilities
11 April 2024
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AusCERT Security Bulletin Summary
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Product: Squid
Publisher: Ubuntu
Operating System: Ubuntu
Resolution: Patch/Upgrade
CVE Names: CVE-2023-5824 CVE-2024-25617 CVE-2024-25111
CVE-2024-23638 CVE-2023-49288
Original Bulletin:
https://ubuntu.com/security/notices/USN-6728-1
Comment: CVSS (Max): 8.6 CVE-2024-25617 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H)
CVSS Source: [Red Hat], Ubuntu
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
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USN-6728-1: Squid vulnerabilities
10 April 2024
Several security issues were fixed in Squid.
Releases
o Ubuntu 23.10
o Ubuntu 22.04 LTS
o Ubuntu 20.04 LTS
Packages
o squid - Web proxy cache server
Details
Joshua Rogers discovered that Squid incorrectly handled collapsed
forwarding. A remote attacker could possibly use this issue to cause Squid
to crash, resulting in a denial of service. This issue only affected Ubuntu
20.04 LTS and Ubuntu 22.04 LTS. ( CVE-2023-49288 )
Joshua Rogers discovered that Squid incorrectly handled certain structural
elements. A remote attacker could possibly use this issue to cause Squid to
crash, resulting in a denial of service. ( CVE-2023-5824 )
Joshua Rogers discovered that Squid incorrectly handled Cache Manager error
responses. A remote trusted client can possibly use this issue to cause
Squid to crash, resulting in a denial of service. ( CVE-2024-23638 )
Joshua Rogers discovered that Squid incorrectly handled the HTTP Chunked
decoder. A remote attacker could possibly use this issue to cause Squid to
stop responding, resulting in a denial of service. ( CVE-2024-25111 )
Joshua Rogers discovered that Squid incorrectly handled HTTP header
parsing. A remote trusted client can possibly use this issue to cause
Squid to crash, resulting in a denial of service. ( CVE-2024-25617 )
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 23.10
o squid - 6.1-2ubuntu1.3
Ubuntu 22.04
o squid - 5.7-0ubuntu0.22.04.4
Ubuntu 20.04
o squid - 4.10-1ubuntu1.10
In general, a standard system update will make all the necessary changes.
References
o CVE-2024-23638
o CVE-2023-5824
o CVE-2024-25617
o CVE-2024-25111
o CVE-2023-49288
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