Squid Web Proxy up to 6.7.x HTTP Chunked Decoder recursion

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Squid Web Proxy up to 6.7.x. It has been classified as problematic. Impacted is an unknown function of the component HTTP Chunked Decoder. The manipulation leads to recursion. This vulnerability is listed as CVE-2024-25111. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Squid Web Proxy up to 6.7.x (Firewall Software). This issue affects an unknown code block of the component HTTP Chunked Decoder. The manipulation with an unknown input leads to a recursion vulnerability. Using CWE to declare the problem leads to CWE-674. The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack. Impacted is availability. The summary by CVE is:

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.

The weakness was presented 03/06/2024. The advisory is shared at github.com. The identification of this vulnerability is CVE-2024-25111 since 02/05/2024. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 232586 (Debian dla-4083 : squid - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.8.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (232586). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 7.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 8.6
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Recursion
CWE: CWE-674 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 232586
Nessus Name: Debian dla-4083 : squid - security update

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Web Proxy 6.8.0

Timelineinfo

02/05/2024 🔍
03/06/2024 +30 days 🔍
03/06/2024 +0 days 🔍
03/12/2025 +371 days 🔍

Sourcesinfo

Vendor: squid-cache.org

Advisory: GHSA-72c2-c3wm-8qxc
Status: Confirmed

CVE: CVE-2024-25111 (🔍)
GCVE (CVE): GCVE-0-2024-25111
GCVE (VulDB): GCVE-100-255953

Entryinfo

Created: 03/06/2024 20:19
Updated: 03/12/2025 02:42
Changes: 03/06/2024 20:19 (49), 04/05/2024 09:48 (15), 04/05/2024 09:52 (1), 06/11/2024 13:10 (1), 02/26/2025 20:53 (12), 03/12/2025 02:42 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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