CVE-2023-49285

Denial of Service in HTTP Message Processing in Squid

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 a Buffer Overread bug Squid is vulnerable to a Denial of Service attack against Squid HTTP Message processing. 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 sobrelectura del búfer, Squid es vulnerable a un ataque de denegación de servicio contra el procesamiento de mensajes HTTP de Squid. 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 buffer over-read flaw was found in Squid's HTTP Message processing feature. 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-125: Out-of-bounds Read
CWE-126: Buffer Over-read

CAPEC

References (11)

URL	Tag	Source
http://www.squid-cache.org/Versions/v5/SQUID-2023_7.patch	Broken Link
http://www.squid-cache.org/Versions/v6/SQUID-2023_7.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/77b3fb4df0f126784d5fd4967c28ed40eb8d521b	2024-01-19
https://github.com/squid-cache/squid/commit/deee944f9a12c9fd399ce52f3e2526bb573a9470	2024-01-19

URL	Date	SRC
https://github.com/squid-cache/squid/security/advisories/GHSA-8w9r-p88v-mmx9	2024-01-19
https://access.redhat.com/security/cve/CVE-2023-49285	2024-04-11
https://bugzilla.redhat.com/show_bug.cgi?id=2252926	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