CVE-2018-1000024: n/a vulnerability

CVE-2018-1000024: The Squid Software Foundation Squid HTTP Caching Proxy version 3.0 to 3.5.27, 4.0 to 4.0.22 contains a Inco...

The Squid Software Foundation Squid HTTP Caching Proxy version 3.0 to 3.5.27, 4.0 to 4.0.22 contains a Incorrect Pointer Handling vulnerability in ESI Response Processing that can result in Denial of Service for all clients using the proxy.. This attack appear to be exploitable via Remote server delivers an HTTP response payload containing valid but unusual ESI syntax.. This vulnerability appears to have been fixed in 4.0.23 and later.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 5, 2024, 12:33 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2018-1000024 lets a remote web server crash vulnerable Squid proxies by returning a valid but unusual ESI response. The impact is denial of service for clients relying on that proxy, not data theft or code execution based on the supplied sources. Organizations are most exposed where affected Squid versions proxy traffic to remote or untrusted HTTP servers and ESI response processing is reachable. Distribution packages may have separate backported fixes, so package version alone may not equal upstream version exposure. Treat this as a service availability issue. Patch internet-facing or high-dependency Squid proxies promptly, especially where a proxy outage would interrupt business access, authentication flows, or customer traffic. Mitigation focus: Upgrade upstream Squid to 4.0.23 or later where applicable.; Apply vendor security updates from Ubuntu, Debian, or other package maintainers.; Review Squid advisory SQUID-2018_1 for vendor-specific remediation guidance..

Prepared: Jun 7, 2026, 20:58 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Feb 9, 2018, 23:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

5Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
USN-3557-1CVE reference · vendor-advisory, x_refsource_UBUNTU
DSA-4122CVE reference · vendor-advisory, x_refsource_DEBIAN
[debian-lts-announce] 20180202 [SECURITY] [DLA 1266-1] squid3 security updateCVE reference · mailing-list, x_refsource_MLIST
USN-4059-2CVE reference · vendor-advisory, x_refsource_UBUNTU

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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