CVE-2015-5314

Severity Score

5.9

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The eap_pwd_process function in eap_server/eap_server_pwd.c in hostapd 2.x before 2.6 does not validate that the reassembly buffer is large enough for the final fragment when used with (1) an internal EAP server or (2) a RADIUS server and EAP-pwd is enabled in a runtime configuration, which allows remote attackers to cause a denial of service (process termination) via a large final fragment in an EAP-pwd message.

La función eap_pwd_process en eap_server/eap_server_pwd.c en hostapd, en versiones 2.x anteriores a la 2.6 no valida que el búfer de reensamblaje sea lo bastante grande para el fragmento final al emplearse con (1) un servidor EAP interno o (2) un servidor RADIUS y EAP-pwd habilitado en una configuración runtime. Esto permite que atacantes remotos provoquen una denegación de servicio (finalización del proceso) mediante un fragmento final grande en un mensaje EAP-pwd.

*Credits: N/A

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-07-01 CVE Reserved
2015-11-10 CVE Published
2023-09-17 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

CAPEC

References (4)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
http://www.openwall.com/lists/oss-security/2015/11/10/10	2018-03-21

URL	Date	SRC
http://w1.fi/security/2015-7/eap-pwd-missing-last-fragment-length-validation.txt	2018-03-21
http://www.ubuntu.com/usn/USN-2808-1	2018-03-21
https://www.debian.org/security/2015/dsa-3397	2018-03-21

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
W1.fi Search vendor "W1.fi"		WPA Supplicant Search vendor "W1.fi" for product "WPA Supplicant"				>= 2.0 < 2.6 Search vendor "W1.fi" for product "WPA Supplicant" and version " >= 2.0 < 2.6"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected