CVE-2015-5315
The eap_pwd_process function in eap_peer/eap_pwd.c in wpa_supplicant 2.x before 2.6 does not validate that the reassembly buffer is large enough for the final fragment when EAP-pwd is enabled in a network configuration profile, which allows remote…
Does this matter?
Lower severity and a low EPSS score (2.50%). Track it; it rarely justifies an emergency change on its own.
Description
The eap_pwd_process function in eap_peer/eap_pwd.c in wpa_supplicant 2.x before 2.6 does not validate that the reassembly buffer is large enough for the final fragment when EAP-pwd is enabled in a network configuration profile, which allows remote attackers to cause a denial of service (process termination) via a large final fragment in an EAP-pwd message.
- CVSS 3.0
- 5.9 MEDIUMCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 2.50% probability · 84th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- w1.fi/wpa supplicant · debian/debian linux
- Source
- secalert@redhat.com
References
- http://w1.fi/security/2015-7/eap-pwd-missing-last-fragment-length-validation.txtMitigation, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2015/11/10/10Mailing List, Patch, Third Party Advisory
- http://www.ubuntu.com/usn/USN-2808-1Broken Link
- https://www.debian.org/security/2015/dsa-3397Third Party Advisory
- http://w1.fi/security/2015-7/eap-pwd-missing-last-fragment-length-validation.txtMitigation, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2015/11/10/10Mailing List, Patch, Third Party Advisory
- http://www.ubuntu.com/usn/USN-2808-1Broken Link
- https://www.debian.org/security/2015/dsa-3397Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.