CVE-2019-11555

Name	CVE-2019-11555
Description	The EAP-pwd implementation in hostapd (EAP server) before 2.8 and wpa_supplicant (EAP peer) before 2.8 does not validate fragmentation reassembly state properly for a case where an unexpected fragment could be received. This could result in process termination due to a NULL pointer dereference (denial of service). This affects eap_server/eap_server_pwd.c and eap_peer/eap_pwd.c.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-1867-1, DSA-4450-1
Debian Bugs	927463

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
wpa (PTS)	bullseye, bullseye (security)	2:2.9.0-21+deb11u2	fixed
	bookworm, bookworm (security)	2:2.10-12+deb12u2	fixed
	sid, trixie	2:2.10-22	fixed

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

Package	Type	Release	Fixed Version	Origin	Debian Bugs
wpa	source	jessie	2.3-1+deb8u8	DLA-1867-1
wpa	source	stretch	2:2.4-1+deb9u4	DSA-4450-1
wpa	source	(unstable)	2:2.7+git20190128+0c1e29f-5		927463

https://w1.fi/security/2019-5/eap-pwd-message-reassembly-issue-with-unexpected-fragment.txt
Patches: https://w1.fi/security/2019-5/