Test ID:	1.3.6.1.4.1.25623.1.1.1.2.2016.473
Category:	Debian Local Security Checks
Title:	Debian: Security Advisory (DLA-473-1)
Summary:	The remote host is missing an update for the Debian 'wpa' package(s) announced via the DLA-473-1 advisory.
Description:	Summary: The remote host is missing an update for the Debian 'wpa' package(s) announced via the DLA-473-1 advisory. Vulnerability Insight: A vulnerability was found in how hostapd and wpa_supplicant writes the configuration file update for the WPA/WPA2 passphrase parameter. If this parameter has been updated to include control characters either through a WPS operation (CVE-2016-4476) or through local configuration change over the wpa_supplicant control interface (CVE-2016-4477), the resulting configuration file may prevent the hostapd and wpa_supplicant from starting when the updated file is used. In addition for wpa_supplicant, it may be possible to load a local library file and execute code from there with the same privileges under which the wpa_supplicant process runs. CVE-2016-4476 hostapd 0.6.7 through 2.5 and wpa_supplicant 0.6.7 through 2.5 do not reject n and r characters in passphrase parameters, which allows remote attackers to cause a denial of service (daemon outage) via a crafted WPS operation. CVE-2016-4477 wpa_supplicant 0.4.0 through 2.5 does not reject n and r characters in passphrase parameters, which allows local users to trigger arbitrary library loading and consequently gain privileges, or cause a denial of service (daemon outage), via a crafted (1) SET, (2) SET_CRED, or (3) SET_NETWORK command. For Debian 7 Wheezy, these problems have been fixed in version 1.0-3+deb7u4. We recommend that you upgrade your wpa packages. Affected Software/OS: 'wpa' package(s) on Debian 7. Solution: Please install the updated package(s). CVSS Score: 5.0 CVSS Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2016-4476 http://www.openwall.com/lists/oss-security/2016/05/03/12 http://www.ubuntu.com/usn/USN-3455-1 Common Vulnerability Exposure (CVE) ID: CVE-2016-4477
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