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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.1237 wpa_supplicant and hostapd vulnerabilities 11 April 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: wpa_supplicant hostapd Publisher: Ubuntu Operating System: Ubuntu UNIX variants (UNIX, Linux, OSX) Windows Impact/Access: Access Privileged Data -- Remote/Unauthenticated Unauthorised Access -- Remote/Unauthenticated Reduced Security -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2019-9499 CVE-2019-9498 CVE-2019-9497 CVE-2019-9495 CVE-2016-10743 Reference: ESB-2019.1048 Original Bulletin: http://www.ubuntu.com/usn/usn-3944-1 Comment: This advisory references vulnerabilities in products which run on platforms other than Ubuntu. It is recommended that administrators running wpa_supplicant or hostapd check for an updated version of the software for their operating system. - --------------------------BEGIN INCLUDED TEXT-------------------- ========================================================================== Ubuntu Security Notice USN-3944-1 April 10, 2019 wpa vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - - Ubuntu 18.10 - - Ubuntu 18.04 LTS - - Ubuntu 16.04 LTS - - Ubuntu 14.04 LTS Summary: Several security issues were fixed in wpa_supplicant and hostapd. Software Description: - - wpa: client support for WPA and WPA2 Details: It was discovered that wpa_supplicant and hostapd were vulnerable to a side channel attack against EAP-pwd. A remote attacker could possibly use this issue to recover certain passwords. (CVE-2019-9495) Mathy Vanhoef discovered that wpa_supplicant and hostapd incorrectly validated received scalar and element values in EAP-pwd-Commit messages. A remote attacker could possibly use this issue to perform a reflection attack and authenticate without the appropriate password. (CVE-2019-9497, CVE-2019-9498, CVE-2019-9499) It was discovered that hostapd incorrectly handled obtaining random numbers. In rare cases where the urandom device isn't available, it would fall back to using a low-quality PRNG. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-10743) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 18.10: hostapd 2:2.6-18ubuntu1.1 wpasupplicant 2:2.6-18ubuntu1.1 Ubuntu 18.04 LTS: hostapd 2:2.6-15ubuntu2.2 wpasupplicant 2:2.6-15ubuntu2.2 Ubuntu 16.04 LTS: hostapd 2.4-0ubuntu6.4 wpasupplicant 2.4-0ubuntu6.4 Ubuntu 14.04 LTS: hostapd 2.1-0ubuntu1.7 wpasupplicant 2.1-0ubuntu1.7 After a standard system update you need to reboot your computer to make all the necessary changes. References: https://usn.ubuntu.com/usn/usn-3944-1 CVE-2016-10743, CVE-2019-9495, CVE-2019-9497, CVE-2019-9498, CVE-2019-9499 Package Information: https://launchpad.net/ubuntu/+source/wpa/2:2.6-18ubuntu1.1 https://launchpad.net/ubuntu/+source/wpa/2:2.6-15ubuntu2.2 https://launchpad.net/ubuntu/+source/wpa/2.4-0ubuntu6.4 https://launchpad.net/ubuntu/+source/wpa/2.1-0ubuntu1.7 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. 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Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBXK6vfGaOgq3Tt24GAQj/0g/+OQJFLheNqiTfPN5L4yMtWFx50Xl86gog HD8bssn+56U0Hmy1tSzImO36mq1bjagWcYXWSf+c8rD+FaS4+5wDQHhd8li9Ap6t SzeC2LHRtcwW3n1ozaRhCasyulMLesZ+D8bCvQFK2w9mn7mKHu683EgY34B64p/b lq2u7jUtqJ3ZPGHHDLWE0Uzj/GvZwMtpLOMskW4gIw974QcQpqz4kWsqtnpsZcCB EZEM0U6iTsbyiQpv98xDt+xqQrrepJX9wpwsixYCH4dsNGueYdg9hdBCyl1HXbRi VjSsmJw/lbAbaDlrmWkIzf+DMj4xSIuPPU82abYnSwCrHU6lyLJScRIMM+ti+O8u rw8vGMtEEbOXCFXarOdNfAlPLlwieJRKT7kONTsN2NHMUOyHyS1x7UXmo5nAHXiY 8409zzKjl4OMbuMMYifDo9Op7+bg5os/m0VMLiGKGD9DIn1r/LH92uFkHOlgV1Jr BJ1FX3hQiYAk9/HB3FY5Jixisoby9hJJNpve+rXNWRKvPHfOS+GNpv/U9mfImrSU KW2hQUSAT2/ZPmGheP63906NT5cxfVg8QydykplCZSOvvwXRndZb4Q69hpz5xnkP oAU9ewY3J6aaHjbcQgToaKFnmqNcLCxhrEld+PVneYvB8+Yn86d01MLNkEZ55cNk +5iWr4c+Vqw= =ExdB -----END PGP SIGNATURE-----