CVE-2019-9495
Published: August 31, 2023Last modified: August 31, 2023
Description
The implementations of EAP-PWD in hostapd and wpa_supplicant are vulnerable to side-channel attacks as a result of cache access patterns. All versions of hostapd and wpa_supplicant with EAP-PWD support are vulnerable. The ability to install and execute applications is necessary for a successful attack. Memory access patterns are visible in a shared cache. Weak passwords may be cracked. Versions of hostapd/wpa_supplicant 2.7 and newer, are not vulnerable to the timing attack described in CVE-2019-9494. Both hostapd with EAP-pwd support and wpa_supplicant with EAP-pwd support prior to and including version 2.7 are affected.
Severity score breakdown
Parameter | Value |
---|---|
Base score | 3.7 |
Attack Vector | NETWORK |
Attack complexity | HIGH |
Privileges required | NONE |
User interaction | NONE |
Scope | UNCHANGED |
Confidentiality | LOW |
Integrity impact | NONE |
Availability impact | NONE |
Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |
Status
Product | Release | Package | Status |
---|---|---|---|
Alpaquita Linux | 23 LTS | wpa_supplicant | Not affected (2.10-r4) |
Stream | wpa_supplicant | Not affected (2.10-r7) |
References
- http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00021.html
- http://packetstormsecurity.com/files/152914/FreeBSD-Security-Advisory-FreeBSD-SA-19-03.wpa.html
- https://lists.debian.org/debian-lts-announce/2019/07/msg00030.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/56OBBOJJSKRTDGEXZOVFSTP4HDSDBLAE/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVMJOFEYBGXZLFF5IOLW67SSOPKFEJP3/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TDOZGR3T7FVO5JSZWK2QPR7AOFIEJTIZ/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/56OBBOJJSKRTDGEXZOVFSTP4HDSDBLAE/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/SVMJOFEYBGXZLFF5IOLW67SSOPKFEJP3/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/TDOZGR3T7FVO5JSZWK2QPR7AOFIEJTIZ/
- https://seclists.org/bugtraq/2019/May/40
- https://security.FreeBSD.org/advisories/FreeBSD-SA-19:03.wpa.asc
- https://w1.fi/security/2019-2/
- https://www.synology.com/security/advisory/Synology_SA_19_16