CVE-2019-9498

Name	CVE-2019-9498
Description	The implementations of EAP-PWD in hostapd EAP Server, when built against a crypto library missing explicit validation on imported elements, do not validate the scalar and element values in EAP-pwd-Commit. An attacker may be able to use invalid scalar/element values to complete authentication, gaining session key and network access without needing or learning the password. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.4 are affected. Both hostapd with EAP-pwd support and wpa_supplicant with EAP-pwd support prior to and including version 2.7 are affected.
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-4430-1
Debian Bugs	926801

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
wpa (PTS)	jessie, jessie (lts)	2.3-1+deb8u15	fixed
	stretch (security)	2:2.4-1+deb9u9	fixed
	stretch (lts), stretch	2:2.4-1+deb9u11	fixed
	buster, buster (lts)	2:2.7+git20190128+0c1e29f-6+deb10u5	fixed
	buster (security)	2:2.7+git20190128+0c1e29f-6+deb10u4	fixed
	bullseye (security), bullseye	2:2.9.0-21+deb11u2	fixed
	bookworm (security), bookworm	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	Urgency	Origin	Debian Bugs
wpa	source	wheezy	(unfixed)	end-of-life
wpa	source	jessie	2.3-1+deb8u8		DLA-1867-1
wpa	source	stretch	2:2.4-1+deb9u3		DSA-4430-1
wpa	source	(unstable)	2:2.7+git20190128+0c1e29f-4			926801

https://w1.fi/security/2019-4/eap-pwd-missing-commit-validation.txt
Patches: https://w1.fi/security/2019-4/