CVE-2015-5314: Buffer Overflow
First published: Tue Nov 10 2015(Updated: )
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.
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-2015-5314
- https://security-tracker.debian.org/tracker/CVE-2015-5315
- https://security-tracker.debian.org/tracker/CVE-2015-5310
- https://security-tracker.debian.org/tracker/CVE-2015-5316
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=804708
- http://w1.fi/security/2015-7/
- https://w1.fi/security/2015-7/eap-pwd-missing-last-fragment-length-validation.txt
- https://w1.fi/security/2015-7/0001-EAP-pwd-server-Fix-last-fragment-length-validation.patch
- 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
Frequently Asked Questions
What is the severity of CVE-2015-5314?
CVE-2015-5314 has a moderate severity impact due to improper validation of the reassembly buffer.
How do I fix CVE-2015-5314?
To fix CVE-2015-5314, upgrade hostapd to version 2.6 or later.
What versions of hostapd are affected by CVE-2015-5314?
All versions of hostapd prior to 2.6 are affected by CVE-2015-5314.
Which software packages are impacted by CVE-2015-5314?
CVE-2015-5314 impacts the wpa package and the wpa_supplicant on Debian and other systems.
Can CVE-2015-5314 be exploited remotely?
Yes, CVE-2015-5314 can potentially be exploited remotely if EAP-pwd is enabled in the runtime configuration.
- collector/debian-bugs
- alias/CVE-2015-5314
- collector/security-tracker-debian
- agent/type
- agent/first-publish-date
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/author
- agent/remedy
- agent/last-modified-date
- agent/weakness
- agent/references
- agent/event
- agent/description
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- package-manager/debian
- vendor/w1.fi
- canonical/wpa_supplicant
- version/wpa_supplicant/2.0
- vendor/debian
- canonical/debian linux
- version/debian linux/8.0