Vulnerability Name:

CVE-2015-5314 (CCN-139833)

Assigned:2015-07-01
Published:2015-07-01
Updated:2018-03-21
Summary: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.
CVSS v3 Severity:5.9 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)
5.2 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-119
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2015-5314

Source: CONFIRM
Type: Mitigation, Vendor Advisory
http://w1.fi/security/2015-7/eap-pwd-missing-last-fragment-length-validation.txt

Source: CCN
Type: oss-sec Mailing List, Tue, 10 Nov 2015 19:48:08 +0200
hostapd/wpa_supplicant: EAP-pwd missing last fragment length validation

Source: MLIST
Type: Mailing List, Mitigation, Patch, Third Party Advisory
[oss-security] 20151110 hostapd/wpa_supplicant: EAP-pwd missing last fragment length validation

Source: UBUNTU
Type: Broken Link
USN-2808-1

Source: XF
Type: UNKNOWN
hostapd-cve20155314-dos(139833)

Source: CCN
Type: hostapd Web site
hostapd: IEEE 802.11 AP, IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator

Source: DEBIAN
Type: Third Party Advisory
DSA-3397

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2015-5314

Vulnerable Configuration:Configuration 1:
  • cpe:/a:w1.fi:wpa_supplicant:*:*:*:*:*:*:*:* (Version >= 2.0 and < 2.6)

    • Configuration 2:
  • cpe:/o:debian:debian_linux:8.0:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:w1.fi:hostapd:2.5:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:20155314
    V
    		CVE-2015-5314
    2022-06-30
    oval:org.opensuse.security:def:112403
    P
    		hostapd-2.6-1.1 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:105912
    P
    		hostapd-2.6-1.1 on GA media (Moderate)
    2021-10-01
    oval:com.ubuntu.trusty:def:20155314000
    V
    		CVE-2015-5314 on Ubuntu 14.04 LTS (trusty) - medium.
    2018-02-21
    oval:org.cisecurity:def:296
    P
    		DSA-3397-1 wpa -- security update
    2016-02-08
    oval:com.ubuntu.precise:def:20155314000
    V
    		CVE-2015-5314 on Ubuntu 12.04 LTS (precise) - medium.
    2015-11-10
    BACK
    w1.fi wpa supplicant *
    debian debian linux 8.0
    w1.fi hostapd 2.5