CVE-2018-14526
First published: Wed Aug 08 2018(Updated: )
An issue was discovered in rsn_supp/wpa.c in wpa_supplicant 2.0 through 2.6. Under certain conditions, the integrity of EAPOL-Key messages is not checked, leading to a decryption oracle. An attacker within range of the Access Point and client can abuse the vulnerability to recover sensitive information.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Canonical Ubuntu Linux | =14.04 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =18.04 | |
| Debian Debian Linux | =8.0 | |
| W1.fi Wpa Supplicant | >=2.0<=2.6 | |
| ubuntu/wpa | <2:2.6-15ubuntu2.1 | 2:2.6-15ubuntu2.1 |
| ubuntu/wpa | <2.1-0ubuntu1.6 | 2.1-0ubuntu1.6 |
| ubuntu/wpa | <2.4-0ubuntu6.3 | 2.4-0ubuntu6.3 |
| debian/wpa | 2:2.9.0-21+deb11u1 2:2.9.0-21+deb11u2 2:2.10-12+deb12u1 2:2.10-12+deb12u2 2:2.10-21.1 2:2.10-22 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00013.html
- http://www.securitytracker.com/id/1041438
- https://access.redhat.com/errata/RHSA-2018:3107
- https://cert-portal.siemens.com/productcert/pdf/ssa-344983.pdf
- https://lists.debian.org/debian-lts-announce/2018/08/msg00009.html
- https://papers.mathyvanhoef.com/woot2018.pdf
- https://security.FreeBSD.org/advisories/FreeBSD-SA-18:11.hostapd.asc
- https://usn.ubuntu.com/3745-1/
- https://w1.fi/security/2018-1/unauthenticated-eapol-key-decryption.txt
- https://www.us-cert.gov/ics/advisories/icsa-19-344-01
- https://launchpad.net/bugs/cve/CVE-2018-14526
- https://access.redhat.com/support/policy/updates/errata/
- https://bugzilla.redhat.com/show_bug.cgi?id=1614520
- https://w1.fi/security/2018-1/0001-WPA-Ignore-unauthenticated-encrypted-EAPOL-Key-data.patch
- https://w1.fi/security/2018-1/rebased-v2.6-0001-WPA-Ignore-unauthenticated-encrypted-EAPOL-Key-data.patch
- https://security-tracker.debian.org/tracker/CVE-2018-14526
- https://ubuntu.com/security/notices/USN-3745-1
- https://www.cve.org/CVERecord?id=CVE-2018-14526
- https://nvd.nist.gov/vuln/detail/CVE-2018-14526
- https://ubuntu.com/security/CVE-2018-14526
Frequently Asked Questions
What is CVE-2018-14526?
CVE-2018-14526 is a vulnerability discovered in wpa_supplicant versions 2.0 through 2.6.
What is the severity of CVE-2018-14526?
The severity of CVE-2018-14526 is medium, with a CVSS score of 6.5.
How does CVE-2018-14526 work?
CVE-2018-14526 allows an attacker within range of the Access Point and client to abuse the vulnerability and recover sensitive information by exploiting a decryption oracle.
Is there a fix available for CVE-2018-14526?
Yes, a fix is available. For Ubuntu, the affected versions are 2.1-0ubuntu1.6, 2.4-0ubuntu6.3, and 2:2.6-15ubuntu2.1. For Debian, the affected versions are 2:2.7+git20190128+0c1e29f-6+deb10u3, 2:2.9.0-21, 2:2.10-12, and 2:2.10-15.
Where can I find more information about CVE-2018-14526?
You can find more information about CVE-2018-14526 at the following references: http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00013.html, http://www.securitytracker.com/id/1041438, and https://access.redhat.com/errata/RHSA-2018:3107.
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