Vulnerability Details : CVE-2015-5316

The eap_pwd_perform_confirm_exchange function in eap_peer/eap_pwd.c in wpa_supplicant 2.x before 2.6, when EAP-pwd is enabled in a network configuration profile, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via an EAP-pwd Confirm message followed by the Identity exchange.

Vulnerability category: Memory CorruptionDenial of service

Published 2018-02-21 16:29:00

Updated 2018-03-21 13:06:13

Source Red Hat, Inc.

View at NVD, CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2015-5316

Probability of exploitation activity in the next 30 days: 0.76%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 79 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2015-5316

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Source
4.3	MEDIUM	AV:N/AC:M/Au:N/C:N/I:N/A:P	8.6	2.9	nvd@nist.gov
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
5.9	MEDIUM	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H	2.2	3.6	nvd@nist.gov
Attack Vector: Network Attack Complexity: High Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2015-5316

CWE-476 NULL Pointer Dereference

A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2015-5316

https://www.debian.org/security/2015/dsa-3397

Debian -- Security Information -- DSA-3397-1 wpa
Third Party Advisory

CVEs referencing this url
http://www.openwall.com/lists/oss-security/2015/11/10/11

oss-security - wpa_supplicant: EAP-pwd peer error path failure on unexpected Confirm message
Mailing List;Mitigation;Patch;Third Party Advisory
http://www.ubuntu.com/usn/USN-2808-1

USN-2808-1: wpa_supplicant and hostapd vulnerabilities | Ubuntu security notices
Broken Link

CVEs referencing this url
http://www.securityfocus.com/bid/77538

wpa_supplicant CVE-2015-5316 Null Pointer Deference Denial of Service Vulnerability
Third Party Advisory;VDB Entry
http://w1.fi/security/2015-8/eap-pwd-unexpected-confirm.txt

Mitigation;Patch;Vendor Advisory

Products affected by CVE-2015-5316

Debian » Debian Linux » Version: 8.0
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
Matching versions
W1.fi » Wpa Supplicant
Versions from including (>=) 2.0 and before (<) 2.6
cpe:2.3:a:w1.fi:wpa_supplicant:*:*:*:*:*:*:*:*
Matching versions