Description

Squid is an open source caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to a Collapse of Data into Unsafe Value bug ,Squid may be vulnerable to a Denial of Service attack against HTTP header parsing. This problem allows a remote client or a remote server to perform Denial of Service when sending oversized headers in HTTP messages. In versions of Squid prior to 6.5 this can be achieved if the request_header_max_size or reply_header_max_size settings are unchanged from the default. In Squid version 6.5 and later, the default setting of these parameters is safe. Squid will emit a critical warning in cache.log if the administrator is setting these parameters to unsafe values. Squid will not at this time prevent these settings from being changed to unsafe values. Users are advised to upgrade to version 6.5. There are no known workarounds for this vulnerability. This issue is also tracked as SQUID-2024:2

Severity

 

CVSS Version 3.x CVSS Version 2.0

CVSS 3.x Severity and Metrics:

NIST: NVD

Base Score:  N/A

NVD assessment not yet provided.

CNA:  GitHub, Inc.

Base Score:  5.3 MEDIUM

Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have not published a CVSS score for this CVE at this time. NVD Analysts use publicly available information at the time of analysis to associate CVSS vector strings. A CNA provided score within the CVE List has been displayed.

CVSS 2.0 Severity and Metrics:

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have not published a CVSS score for this CVE at this time. NVD Analysts use publicly available information at the time of analysis to associate CVSS vector strings.

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
https://github.com/squid-cache/squid/commit/72a3bbd5e431597c3fdb56d752bc56b010ba3817
https://github.com/squid-cache/squid/security/advisories/GHSA-h5x6-w8mv-xfpr
https://security.netapp.com/advisory/ntap-20240322-0006/

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-400	Uncontrolled Resource Consumption	GitHub, Inc.
CWE-182	Collapse of Data into Unsafe Value	GitHub, Inc.

Change History

2 change records found show changes

CVE Modified by GitHub, Inc. 3/22/2024 3:15:08 PM

Action	Type	Old Value	New Value
Added	Reference		GitHub, Inc. https://security.netapp.com/advisory/ntap-20240322-0006/ [No types assigned]

New CVE Received by NIST 2/14/2024 4:15:08 PM

Action	Type	Old Value	New Value
Added	CVSS V3.1		GitHub, Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Added	CWE		GitHub, Inc. CWE-182
Added	CWE		GitHub, Inc. CWE-400
Added	Description		Record truncated, showing 500 of 933 characters. View Entire Change Record Squid is an open source caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to a Collapse of Data into Unsafe Value bug ,Squid may be vulnerable to a Denial of Service attack against HTTP header parsing. This problem allows a remote client or a remote server to perform Denial of Service when sending oversized headers in HTTP messages. In versions of Squid prior to 6.5 this can be achieved if the request_header_max_size or reply_header_max_size settings are unchanged from the def
Added	Reference		GitHub, Inc. https://github.com/squid-cache/squid/commit/72a3bbd5e431597c3fdb56d752bc56b010ba3817 [No types assigned]
Added	Reference		GitHub, Inc. https://github.com/squid-cache/squid/security/advisories/GHSA-h5x6-w8mv-xfpr [No types assigned]