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Debian Security Advisory DSA 4538-1 (wpa - security update)

Information

Severity

Severity

Low

Family

Family

Debian Local Security Checks

CVSSv2 Base

CVSSv2 Base

3.3

CVSSv2 Vector

CVSSv2 Vector

AV:A/AC:L/Au:N/C:N/I:N/A:P

Solution Type

Solution Type

Vendor Patch

Created

Created

4 years ago

Modified

Modified

4 years ago

Summary

The remote host is missing an update for the 'wpa' package(s) announced via the DSA-4538-1 advisory.

Insight

Insight

Two vulnerabilities were found in the WPA protocol implementation found in wpa_supplication (station) and hostapd (access point). CVE-2019-13377 A timing-based side-channel attack against WPA3's Dragonfly handshake when using Brainpool curves could be used by an attacker to retrieve the password. CVE-2019-16275 Insufficient source address validation for some received Management frames in hostapd could lead to a denial of service for stations associated to an access point. An attacker in radio range of the access point could inject a specially constructed unauthenticated IEEE 802.11 frame to the access point to cause associated stations to be disconnected and require a reconnection to the network.

Affected Software

Affected Software

'wpa' package(s) on Debian Linux.

Detection Method

Detection Method

Checks if a vulnerable package version is present on the target host.

Solution

Solution

For the stable distribution (buster), these problems have been fixed in version 2:2.7+git20190128+0c1e29f-6+deb10u1. We recommend that you upgrade your wpa packages.

Common Vulnerabilities and Exposures (CVE)