Skip to content
brandefense.io
Request A Demo
Vulnerability Intelligence

CVE-2024-25617

High

Due to a Collapse of Data into Unsafe Value bug ,Squid may be vulnerable to a Denial of Service attack against HTTP header parsing.

Published Feb 14, 2024 · Updated Aug 12, 2026 · Also known as DEBIAN-CVE-2024-25617, GHSA-h5x6-w8mv-xfpr, UBUNTU-CVE-2024-25617

Key Facts

Patch immediately
  • CVE-2024-25617 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting Bluexp (Netapp), Squid (Squid-Cache), squid3 (ubuntu) and 5 more products.
  • It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
  • EPSS estimates a 88% probability of exploitation in the next 30 days.
  • Fixed versions are available, including libecap 1.0.1-2.module_el8.6.0+2741+01592ae8, libecap 1.0.1-2.module+el8.9.0+1437+df5ea8f0, libecap 1.0.1-2.module+el8.9.0+90083+f7556140.
  • Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v3.1

7.5

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

EPSS (30-day exploit likelihood)

88%

Higher than 99.7% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

None known

Get the full CVE-2024-25617 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

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

Affected Products

84 affected entries in total
ProductAffected versionsFixed in
BluexpNetappSee advisoryn/a
SquidSquid-Cache>= < 6.56.5
squid3ubuntuSee advisory3.5.12-1ubuntu7.16+esm3
libecapalmaSee advisory1.0.1-2.module_el8.6.0+2741+01592ae8
squid-migration-scriptamazonSee advisory7:3.5.20-17.amzn2.7.11
3 more affected products in the full CVE brief

Patched Releases

libecap

1.0.1-2.module_el8.6.0+2741+01592ae8, 1.0.1-2.module+el8.9.0+1437+df5ea8f0, 1.0.1-2.module+el8.9.0+90083+f7556140

libecap-devel

1.0.1-2.module+el8.9.0+90083+f7556140

Squid

4.10-1ubuntu1.10, 4.13-10+deb11u3, 4.17-150000.5.52.1, 4.17-4.44.1, 5.7-0ubuntu0.22.04.4, 5.7-150400.3.26.1, 5.7-2+deb12u1, 5.9-6.ph3, 6.5-1, 6.5-1ubuntu1, 6.8-1.1, 7:3.5.20-17.0.1.el7_9.10, 7:3.5.20-17.amzn2.7.11, 7:3.5.20-17.el7_9.10, 7:4.15-7.module_el8.9.0+3749+dbf371ed.10, 7:4.15-7.module+el8.9.0+90184+ff65e696.10, 7:5.5-5.el9_2.5, 7:5.5-6.0.1.el9_3.8, 7:5.5-6.el9_3.8, 7:5.8-1.amzn2023.0.3, 6.5

squid-migration-script

7:3.5.20-17.0.1.el7_9.10, 7:3.5.20-17.amzn2.7.11

squid-sysvinit

7:3.5.20-17.0.1.el7_9.10, 7:3.5.20-17.amzn2.7.11

squid:4

8090020240314114525.a75119d5

squid3

3.5.12-1ubuntu7.16+esm3, 3.5.27-1ubuntu1.14+esm2

Timeline

  1. Publicly disclosed

    Feb 14, 2024

  2. Last updated

    Aug 12, 2026

Weakness Type

  • CWE-182 Collapse of Data into Unsafe Value
  • CWE-400 Uncontrolled Resource Consumption

References

15 more references in the full CVE brief

FAQ

Common Questions.

Is CVE-2024-25617 Running On Your Attack Surface?

Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.

Request A Demo