Squid Proxy up to 6.4 Helper Process Management function return value

CVSS Meta Temp Score
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CTI Interest Score
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7.1$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Squid Proxy up to 6.4. Affected is an unknown function of the component Helper Process Management. Executing a manipulation can lead to function return value. This vulnerability is registered as CVE-2023-49286. It is possible to launch the attack remotely. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Squid Proxy up to 6.4 (Firewall Software). It has been declared as problematic. This vulnerability affects some unknown functionality of the component Helper Process Management. The manipulation with an unknown input leads to a function return value vulnerability. The CWE definition for the vulnerability is CWE-253. The product incorrectly checks a return value from a function, which prevents it from detecting errors or exceptional conditions. As an impact it is known to affect availability. CVE summarizes:

Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to an Incorrect Check of Function Return Value bug Squid is vulnerable to a Denial of Service attack against its Helper process management. This bug is fixed by Squid version 6.5. Users are advised to upgrade. There are no known workarounds for this vulnerability.

The weakness was published 12/05/2023 as GHSA-xggx-9329-3c27. The advisory is available at github.com. This vulnerability was named CVE-2023-49286 since 11/24/2023. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 236724 (Alibaba Cloud Linux 3 : 0020: squid:4 (ALINUX3-SA-2024:0020)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.5 eliminates this vulnerability. Applying the patch 6014c6648a2a54a4ecb7f952ea1163e0798f9264 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (236724). If you want to get best quality of vulnerability data, you may have to visit VulDB.

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

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

Exploitinginfo

Class: Function return value
CWE: CWE-253
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 236724
Nessus Name: Alibaba Cloud Linux 3 : 0020: squid:4 (ALINUX3-SA-2024:0020)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Proxy 6.5
Patch: 6014c6648a2a54a4ecb7f952ea1163e0798f9264

Timelineinfo

11/24/2023 🔍
12/05/2023 +11 days 🔍
12/05/2023 +0 days 🔍
05/16/2025 +528 days 🔍

Sourcesinfo

Vendor: squid-cache.org

Advisory: GHSA-xggx-9329-3c27
Status: Confirmed

CVE: CVE-2023-49286 (🔍)
GCVE (CVE): GCVE-0-2023-49286
GCVE (VulDB): GCVE-100-246850

Entryinfo

Created: 12/05/2023 08:29
Updated: 05/16/2025 18:03
Changes: 12/05/2023 08:29 (53), 12/05/2023 13:40 (1), 12/23/2023 13:48 (11), 05/16/2025 18:03 (17)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion

 Anonymous User (+0)
3 years ago
Good morning
Could you check the CPE for the lack of ":" before the impacted version?
We would appreciate it very much.
Best regards,
TEAM Cert
 VulDB Community Team3 years ago
Thank you, we have just fixed the CPE.

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