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
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+deb8u9fixed
stretch (security), stretch2:2.4-1+deb9u4fixed
buster, buster (security)2:2.7+git20190128+0c1e29f-6+deb10u1fixed
bullseye, sid2:2.9-6fixed

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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