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

Published: 2019-09-30 02:00:10
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:A/AC:L/Au:N/C:N/I:N/A:P

Summary:
The remote host is missing an update for the 'wpa' Linux Distribution Package(s) announced via the DSA-4538-1 advisory.

Detection Method:
Checks if a vulnerable Linux Distribution Package version is present on the target host.

Technical Details:
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 Versions:
'wpa' Linux Distribution Package(s) on Debian Linux.

Recommendations:
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 Linux Distribution Packages.

Solution Type:
Vendor Patch

Detection Type:
Linux Distribution Package

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2019-13377
https://nvd.nist.gov/vuln/detail/CVE-2019-16275

References:

https://www.debian.org/security/2019/dsa-4538.html
https://security-tracker.debian.org/tracker/DSA-4538-1

Severity
Low
CVSS Score
3.3
Published
2019-09-30
Modified
2019-09-30
Category
Debian Local Security Checks

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