CVE-2023-49286

Denial of Service in Helper Process management

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Squid es un proxy de almacenamiento en caché para la Web que admite HTTP, HTTPS, FTP y más. Debido a un error de verificación incorrecta del valor de retorno de la función, Squid es vulnerable a un ataque de denegación de servicio contra su gestión de procesos auxiliares. Este error se solucionó con la versión 6.5 de Squid. Se recomienda a los usuarios que actualicen. No se conocen workarounds para esta vulnerabilidad.

A flaw was found in Squid due to an incorrect check of the return value in the helper process management. This issue may allow attackers to perform remote denial of service.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2023-11-24 CVE Reserved
2023-12-04 CVE Published
2024-08-02 CVE Updated
2024-11-15 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-253: Incorrect Check of Function Return Value
CWE-617: Reachable Assertion
CWE-754: Improper Check for Unusual or Exceptional Conditions

CAPEC

References (9)

URL	Tag	Source
http://www.squid-cache.org/Versions/v6/SQUID-2023_8.patch	Broken Link
https://lists.debian.org/debian-lts-announce/2024/01/msg00003.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/A5QASTMCUSUEW3UOMKHZJB3FTONWSRXS
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MEV66D3PAAY6K7TWDT3WZBLCPLASFJDC
https://security.netapp.com/advisory/ntap-20240119-0004

URL	Date	SRC

URL	Date	SRC
https://github.com/squid-cache/squid/commit/6014c6648a2a54a4ecb7f952ea1163e0798f9264	2024-01-19

URL	Date	SRC
https://github.com/squid-cache/squid/security/advisories/GHSA-xggx-9329-3c27	2024-01-19
https://access.redhat.com/security/cve/CVE-2023-49286	2024-04-11
https://bugzilla.redhat.com/show_bug.cgi?id=2252923	2024-04-11

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Squid-cache Search vendor "Squid-cache"		Squid Search vendor "Squid-cache" for product "Squid"				<= 6.4 Search vendor "Squid-cache" for product "Squid" and version " <= 6.4"		-		Affected