DescriptionThe WNM Sleep Mode code in wpa_supplicant 2.x before 2.6 does not properly ignore key data in response frames when management frame protection (MFP) was not negotiated, which allows remote attackers to inject arbitrary broadcast or multicast packets or cause a denial of service (ignored packets) via a WNM Sleep Mode response.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitylow (attack range: remote)
Debian Bugs804707

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
wpa (PTS)jessie2.3-1+deb8u5fixed
jessie (security)2.3-1+deb8u6fixed
stretch (security), stretch2:2.4-1+deb9u1fixed
buster, sid2:2.6-18fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
hostapdsource(unstable)(not affected)
wpasupplicantsource(unstable)(not affected)


[wheezy] - wpa <not-affected> (v2.0-v2.5 with CONFIG_WNM=y)
- wpasupplicant <not-affected> (v2.0-v2.5 with CONFIG_WNM=y)
- hostapd <not-affected> (v2.0-v2.5 with CONFIG_WNM=y)

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