CVE-2024-45802: squid Input Validation Flaw (CVSS 7.5)

Description

Squid is an open source caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to Input Validation, Premature Release of Resource During Expected Lifetime, and Missing Release of Resource after Effective Lifetime bugs, Squid is vulnerable to Denial of Service attacks by a trusted server against all clients using the proxy. This bug is fixed in the default build configuration of Squid version 6.10.

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CVSS v3.1 Score

7.5

HIGH

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

Weakness Type (CWE)

CWE-20 Improper Input Validation

Affected Products

Vendor	Product	Versions
squid-cache	squid	3.0 — 6.10

References

Other References

https://github.com/squid-cache/squid/security/advisories/GHSA-f975-v7qw-q7hj https://lists.debian.org/debian-lts-announce/2025/03/msg00009.html https://security.netapp.com/advisory/ntap-20250103-0004/

Frequently Asked Questions

What is CVE-2024-45802? +

Squid is an open source caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to Input Validation, Premature Release of Resource During Expected Lifetime, and Missing Release of Resource after Effective Lifetime bugs, Squid is vulnerable to Denial of Service attacks by a trusted server against all clients using the proxy. This bug is fixed in the default build configuration of Squid version 6.10. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2024-45802? +

CVE-2024-45802 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-45802? +

CVE-2024-45802 affects products from squid-cache, specifically: squid. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-45802? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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