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CVE Record

CVE-2013-4123: client_side_request.cc in Squid 3.2.x before 3.2.13 and 3.3.x before 3.3.8 allows remote attackers to cause...

client_side_request.cc in Squid 3.2.x before 3.2.13 and 3.3.x before 3.3.8 allows remote attackers to cause a denial of service via a crafted port number in a HTTP Host header.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysis

Security readout for executives and security teams

CVE-2013-4123 is a Squid proxy denial-of-service issue. A remote attacker could disrupt vulnerable Squid 3.2.x or 3.3.x deployments by sending an HTTP Host header containing a crafted port number. The impact is availability loss for proxy services, not data theft based on the provided sources. Exposure is most likely where Squid 3.2.x or 3.3.x handles HTTP requests from untrusted clients or networks. Internal-only proxies still matter if compromised hosts or users can reach them. Prioritize remediation for internet-facing or widely reachable proxies because service disruption can affect browsing, application egress, and dependent business workflows. This is not presented as critical, but outdated vulnerable Squid deployments should be upgraded. Mitigation focus: Upgrade Squid 3.2.x to 3.2.13 or later.; Upgrade Squid 3.3.x to 3.3.8 or later.; Apply vendor or distribution Squid security updates where packaged versions differ..

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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1Source links

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Affected products

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