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Test ID:1.3.6.1.4.1.25623.1.0.146026
Category:Denial of Service
Title:Squid < 4.15, 5.0.x < 5.0.6 DoS Vulnerability (GHSA-572g-rvwr-6c7f, SQUID-2021:5)
Summary:Squid is prone to a denial of service (DoS) vulnerability.
Description:Summary:
Squid is prone to a denial of service (DoS) vulnerability.

Vulnerability Insight:
Due to an input validation bug Squid is vulnerable to a DoS
against all clients using the proxy.

This problem allows a remote server to perform a DoS when delivering HTTP Response messages. The
issue trigger is a header which can be expected to exist in HTTP traffic without any malicious
intent by the server.

This flaw was part of the 'Squid Caching Proxy Security Audit: 55 vulnerabilities and 35 0days'
publication in October 2023 and filed as 'Crash in Content-Range Response Header Logic'.

Affected Software/OS:
Squid versions prior to 4.15 and 5.0.0 through 5.0.5.

Solution:
Update to version 4.15, 5.0.6 or later.

CVSS Score:
4.0

CVSS Vector:
AV:N/AC:L/Au:S/C:N/I:N/A:P

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2021-33620
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T4EPIWUZDJAXADDHVOPKRBTQHPBR6H66/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LSQ3U54ZCNXR44QRPW3AV2VCS6K3TKCF/
http://seclists.org/fulldisclosure/2023/Oct/14
http://www.squid-cache.org/Versions/v4/changesets/squid-4-1e05a85bd28c22c9ca5d3ac9f5e86d6269ec0a8c.patch
http://www.squid-cache.org/Versions/v5/changesets/squid-5-8af775ed98bfd610f9ce762fe177e01b2675588c.patch
https://github.com/squid-cache/squid/security/advisories/GHSA-572g-rvwr-6c7f
https://lists.debian.org/debian-lts-announce/2021/06/msg00014.html
http://www.openwall.com/lists/oss-security/2023/10/11/3
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