CVE-2015-5315
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of service disruption.
- Exploit odds
- 2.5% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 2.5% in the next 30 days (EPSS).
- Severity: 5.9 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 2.5% · EPSS, next 30 days
- Weakness
- CWE-119 · Buffer errors
- Record status
- Modified
Affected
- w1.fi Wpa Supplicant < 2.6
- Debian Linux 8.0
Attack profile CVSS 3.0 · 5.9
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2015-5315.md and follow it. Check whether this project is affected by CVE-2015-5315. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- http://w1.fi/security/2015-7/eap-pwd-missing-last-fragment-length-validation.txt
- http://www.openwall.com/lists/oss-security/2015/11/10/10
- http://w1.fi/security/2015-7/eap-pwd-missing-last-fragment-length-validation.txt
- http://www.openwall.com/lists/oss-security/2015/11/10/10
References
- http://w1.fi/security/2015-7/eap-pwd-missing-last-fragment-length-validation.txt
- http://www.openwall.com/lists/oss-security/2015/11/10/10
- http://www.ubuntu.com/usn/USN-2808-1
- https://www.debian.org/security/2015/dsa-3397
- http://w1.fi/security/2015-7/eap-pwd-missing-last-fragment-length-validation.txt
- http://www.openwall.com/lists/oss-security/2015/11/10/10
- http://www.ubuntu.com/usn/USN-2808-1
- https://www.debian.org/security/2015/dsa-3397