Medium severity · published Feb 21, 2018
CVE-2015-5314
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…
5.9
CVSS
2.3%
EPSS
No
On KEV
Description
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 vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.3% · higher than 83% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
8.0 · source: NVD
WS
Wpa Supplicant · W1.fi
2.0 before 2.6 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2015-5314
CVE.org
https://www.cve.org/CVERecord?id=CVE-2015-5314
Mitigation
http://w1.fi/security/2015-7/eap-pwd-missing-last-fragment-length-validation.txt
Mailing List
http://www.openwall.com/lists/oss-security/2015/11/10/10
Broken Link
http://www.ubuntu.com/usn/USN-2808-1
Third Party Advisory
https://www.debian.org/security/2015/dsa-3397
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