CVE-2024-25111
HighPublic exploitStarting in version 3.5.27 and prior to version 6.8, Squid may be vulnerable to a Denial of Service attack against HTTP Chunked decoder due to an uncontrolled recursion bug.
Published Mar 6, 2024 · Updated Aug 12, 2026 · Also known as DEBIAN-CVE-2024-25111, DLA-4083-1, GHSA-72c2-c3wm-8qxc, SUSE-SU-2024:1113-1, SUSE-SU-2024:1114-1, SUSE-SU-2024:1115-1, UBUNTU-CVE-2024-25111
Key Facts
Patch immediately- CVE-2024-25111 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting Bluexp (Netapp), Squid (Squid-Cache), Fedora (Fedoraproject) and 4 more products.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 65% 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)
65%
Higher than 99.2% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2024-25111 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 a web proxy cache. Starting in version 3.5.27 and prior to version 6.8, Squid may be vulnerable to a Denial of Service attack against HTTP Chunked decoder due to an uncontrolled recursion bug. This problem allows a remote attacker to cause Denial of Service when sending a crafted, chunked, encoded HTTP Message. This bug is fixed in Squid version 6.8. In addition, patches addressing this problem for the stable releases can be found in Squid's patch archives. There is no workaround for this issue.
Affected Products
80 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| BluexpNetapp | See advisory | n/a |
| SquidSquid-Cache | >= >= 3.5.27, < 6.8 | 6.8 |
| FedoraFedoraproject | 38, 39 | n/a |
| squid3ubuntu | See advisory | n/a |
| libecapalma | See advisory | 1.0.1-2.module_el8.6.0+2741+01592ae8 |
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+deb11u4, 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, 6.6-1ubuntu4, 6.6-2.ph5, 6.6-3.ph4, 6.8-1, 6.8-1.1, 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_2.6, 7:5.5-6.0.1.el9_3.8, 7:5.5-6.el9_3.8, 7:6.6-1.amzn2023.0.3, 6.8
squid:4
8090020240314114525.a75119d5
Timeline
Publicly disclosed
Mar 6, 2024
Last updated
Aug 12, 2026
Weakness Type
- CWE-674 Uncontrolled Recursion
References
- advisoryRHSA-2024:1375
- advisoryRHSA-2024:1376
- advisoryRHSA-2024:1479
- advisoryRHSA-2024:1515
- advisoryRHSA-2024:1832
FAQ
Common Questions.
Squid is a web proxy cache.
Affected: Bluexp (Netapp); Squid (Squid-Cache) versions >= >= 3.5.27, < 6.8; Fedora (Fedoraproject) versions 38, 39, among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
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.
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