CVE-2015-5316: Null Pointer Dereference
First published: Tue Nov 10 2015(Updated: )
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.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/wpa | 2:2.7+git20190128+0c1e29f-6+deb10u3 2:2.9.0-21 2:2.10-12 2:2.10-15 | |
| wpa_supplicant | >=2.0<2.6 | |
| Debian Linux | =8.0 |
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Reference Links
- https://security-tracker.debian.org/tracker/CVE-2015-5316
- https://security-tracker.debian.org/tracker/CVE-2015-5310
- https://security-tracker.debian.org/tracker/CVE-2015-5314
- https://security-tracker.debian.org/tracker/CVE-2015-5315
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=804710
- http://w1.fi/security/2015-8/
- https://w1.fi/security/2015-8/eap-pwd-unexpected-confirm.txt
- https://w1.fi/security/2015-8/0001-EAP-pwd-peer-Fix-error-path-for-unexpected-Confirm-m.patch
- http://w1.fi/security/2015-8/eap-pwd-unexpected-confirm.txt
- http://www.openwall.com/lists/oss-security/2015/11/10/11
- http://www.securityfocus.com/bid/77538
- http://www.ubuntu.com/usn/USN-2808-1
- https://www.debian.org/security/2015/dsa-3397
Frequently Asked Questions
What is the severity of CVE-2015-5316?
CVE-2015-5316 has been classified as a denial of service vulnerability due to a NULL pointer dereference leading to a daemon crash.
How do I fix CVE-2015-5316?
Upgrading to wpa_supplicant version 2.6 or later will resolve the vulnerability associated with CVE-2015-5316.
Which versions of wpa_supplicant are affected by CVE-2015-5316?
wpa_supplicant versions prior to 2.6 are affected by CVE-2015-5316.
What type of attack does CVE-2015-5316 exploit?
CVE-2015-5316 can be exploited by sending a specially crafted EAP-pwd Confirm message.
Is CVE-2015-5316 specific to any operating system?
CVE-2015-5316 impacts primarily Debian GNU/Linux versions 8.0 with wpa_supplicant configured for EAP-pwd.
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