Information Exposure Affecting wpa_supplicant package, versions <1:2.6-12.el7
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-RHEL7-WPASUPPLICANT-4903486
- published26 Jul 2021
- disclosed8 Aug 2018
Introduced: 8 Aug 2018
CVE-2018-14526 (opens in a new tab)How to fix?
Upgrade RHEL:7 wpa_supplicant to version 1:2.6-12.el7 or higher.
This issue was patched in RHSA-2018:3107.
NVD Description
Note: Versions mentioned in the description apply only to the upstream wpa_supplicant package and not the wpa_supplicant package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
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.
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-344983.pdf
- https://access.redhat.com/security/cve/CVE-2018-14526
- https://security.FreeBSD.org/advisories/FreeBSD-SA-18:11.hostapd.asc
- https://papers.mathyvanhoef.com/woot2018.pdf
- https://w1.fi/security/2018-1/unauthenticated-eapol-key-decryption.txt
- https://www.us-cert.gov/ics/advisories/icsa-19-344-01
- https://lists.debian.org/debian-lts-announce/2018/08/msg00009.html
- https://access.redhat.com/errata/RHSA-2018:3107
- http://www.securitytracker.com/id/1041438
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00013.html
- https://usn.ubuntu.com/3745-1/