CVE-2019-9496
published 2019-04-17CVE-2019-9496: An invalid authentication sequence could result in the hostapd process terminating due to missing state validation steps when processing the SAE confirm…
PriorityP344high7.5CVSS 3.0
AVNACLPRNUINSUCNINAH
EPSS
5.22%
91.5th percentile
An invalid authentication sequence could result in the hostapd process terminating due to missing state validation steps when processing the SAE confirm message when in hostapd/AP mode. All version of hostapd with SAE support are vulnerable. An attacker may force the hostapd process to terminate, performing a denial of service attack. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.7 are affected.
Affected
12 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | wpa | < wpa 2:2.7+git20190128+0c1e29f-4 (bookworm) | wpa 2:2.7+git20190128+0c1e29f-4 (bookworm) |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| w1.fi | hostapd | <= 2.7 | — |
| w1.fi | wpa_supplicant | <= 2.7 | — |
| w1.fi | wpa_supplicant | >= 0 < 2:2.7+git20190128+0c1e29f-4 | 2:2.7+git20190128+0c1e29f-4 |
| w1.fi | wpa_supplicant | >= 0 < 2:2.7+git20190128+0c1e29f-4 | 2:2.7+git20190128+0c1e29f-4 |
| w1.fi | wpa_supplicant | >= 0 < 2:2.7+git20190128+0c1e29f-4 | 2:2.7+git20190128+0c1e29f-4 |
| w1.fi | wpa_supplicant | >= 0 < 2:2.7+git20190128+0c1e29f-4 | 2:2.7+git20190128+0c1e29f-4 |
| wi-fi_alliance | hostapd_with_sae_support | 2.7 – 2.7 | — |
| wi-fi_alliance | wpa_supplicant_with_sae_support | 2.7 – 2.7 | — |
CVSS provenance
nvdv3.07.5HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
osv7.5HIGH
vendor_debian7.5HIGH
vendor_redhat7.5HIGH
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GHSA
GHSA-cvwc-47mg-vx9r: An invalid authentication sequence could result in the hostapd process terminating due to missing state validation steps when processing the SAE confi
ghsa_unreviewed·2022-05-14
CVE-2019-9496 [HIGH] CWE-287 GHSA-cvwc-47mg-vx9r: An invalid authentication sequence could result in the hostapd process terminating due to missing state validation steps when processing the SAE confi
An invalid authentication sequence could result in the hostapd process terminating due to missing state validation steps when processing the SAE confirm message when in hostapd/AP mode. All version of hostapd with SAE support are vulnerable. An attacker may force the hostapd process to terminate, performing a denial of service attack. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.7 are affected.
OSV
CVE-2019-9496: An invalid authentication sequence could result in the hostapd process terminating due to missing state validation steps when processing the SAE confi
osv·2019-04-17·CVSS 7.5
CVE-2019-9496 [HIGH] CVE-2019-9496: An invalid authentication sequence could result in the hostapd process terminating due to missing state validation steps when processing the SAE confi
An invalid authentication sequence could result in the hostapd process terminating due to missing state validation steps when processing the SAE confirm message when in hostapd/AP mode. All version of hostapd with SAE support are vulnerable. An attacker may force the hostapd process to terminate, performing a denial of service attack. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.7 are affected.
BSD
FreeBSD-SA-19:03.wpa: Multiple vulnerabilities in hostapd and wpa_supplicant
bsd_advisories·2019-05-14·CVSS 5.9
CVE-2019-11555 [MEDIUM] FreeBSD-SA-19:03.wpa: Multiple vulnerabilities in hostapd and wpa_supplicant
FreeBSD-SA-19:03.wpa Security Advisory
The FreeBSD Project
Topic: Multiple vulnerabilities in hostapd and wpa_supplicant
Category: contrib
Module: wpa
Announced: 2019-05-14
Affects: All supported versions of FreeBSD.
Corrected: 2019-05-01 01:42:38 UTC (stable/12, 12.0-STABLE)
2019-05-14 22:57:29 UTC (releng/12.0, 12.0-RELEASE-p4)
2019-05-01 01:43:17 UTC (stable/11, 11.2-STABLE)
2019-05-14 22:59:32 UTC (releng/11.2, 11.2-RELEASE-p10)
CVE Name: CVE-2019-9494, CVE-2019-9495, CVE-2019-9496, CVE-2019-9497,
CVE-2019-9498, CVE-2019-9499, CVE-2019-11555
For general information regarding FreeBSD Security Advisories,
including descriptions of the fields above, security branches, and the
following sections, please visit .
I. Background
Wi-Fi Protected Access II (WPA2) is a security protocol deve
Red Hat
hostapd: SAE confirm missing state validation in hostapd/AP
vendor_redhat·2019-04-10·CVSS 7.5
CVE-2019-9496 [HIGH] CWE-642 hostapd: SAE confirm missing state validation in hostapd/AP
hostapd: SAE confirm missing state validation in hostapd/AP
An invalid authentication sequence could result in the hostapd process terminating due to missing state validation steps when processing the SAE confirm message when in hostapd/AP mode. All version of hostapd with SAE support are vulnerable. An attacker may force the hostapd process to terminate, performing a denial of service attack. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.7 are affected.
Statement: Red Hat Enterprise Linux 5, 6, and 7 do not ship hostapd and they are not affected by this flaw.
Package: wpa_supplicant (Red Hat Enterprise Linux 5) - Not affected
Package: wpa_supplicant (Red Hat Enterprise Linux 6) - Not affected
Package: wpa_supplicant (Red Hat Enterp
Debian
CVE-2019-9496: wpa - An invalid authentication sequence could result in the hostapd process terminati...
vendor_debian·2019·CVSS 7.5
CVE-2019-9496 [HIGH] CVE-2019-9496: wpa - An invalid authentication sequence could result in the hostapd process terminati...
An invalid authentication sequence could result in the hostapd process terminating due to missing state validation steps when processing the SAE confirm message when in hostapd/AP mode. All version of hostapd with SAE support are vulnerable. An attacker may force the hostapd process to terminate, performing a denial of service attack. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.7 are affected.
Scope: local
bookworm: resolved (fixed in 2:2.7+git20190128+0c1e29f-4)
bullseye: resolved (fixed in 2:2.7+git20190128+0c1e29f-4)
forky: resolved (fixed in 2:2.7+git20190128+0c1e29f-4)
sid: resolved (fixed in 2:2.7+git20190128+0c1e29f-4)
trixie: resolved (fixed in 2:2.7+git20190128+0c1e29f-4)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2019-9496 hostapd: SAE confirm missing state validation in hostapd/AP [fedora-all]
bugzilla·2019-04-11·CVSS 7.5
CVE-2019-9496 [HIGH] CVE-2019-9496 hostapd: SAE confirm missing state validation in hostapd/AP [fedora-all]
CVE-2019-9496 hostapd: SAE confirm missing state validation in hostapd/AP [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported
Bugzilla
CVE-2019-9496 hostapd: SAE confirm missing state validation in hostapd/AP [epel-all]
bugzilla·2019-04-11·CVSS 7.5
CVE-2019-9496 [HIGH] CVE-2019-9496 hostapd: SAE confirm missing state validation in hostapd/AP [epel-all]
CVE-2019-9496 hostapd: SAE confirm missing state validation in hostapd/AP [epel-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of epel-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported ver
Bugzilla
CVE-2019-9496 hostapd: SAE confirm missing state validation in hostapd/AP
bugzilla·2019-04-11·CVSS 7.5
CVE-2019-9496 [HIGH] CVE-2019-9496 hostapd: SAE confirm missing state validation in hostapd/AP
CVE-2019-9496 hostapd: SAE confirm missing state validation in hostapd/AP
A vulnerability was found in hostapd. When used to operate an access point with SAE (SimultaneousAuthentication of Equals; also known as WPA3-Personal), an invalid authentication sequence could result in the hostapd process terminating due to a NULL pointer dereference when processing SAE confirm message. This was caused by missing state validation steps when processing the SAE confirm message in hostapd/AP mode. An attacker in radio range of an access point using hostapd in SAE configuration could use this issue to perform a denial of service attack by forcing the hostapd process to terminate.
References:
https://w1.fi/security/2019-3/sae-confirm-missing-state-validation.txt
https://wpa3.mathyvanhoef.com/
Upstre
http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00021.htmlhttp://packetstormsecurity.com/files/152914/FreeBSD-Security-Advisory-FreeBSD-SA-19-03.wpa.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/56OBBOJJSKRTDGEXZOVFSTP4HDSDBLAE/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVMJOFEYBGXZLFF5IOLW67SSOPKFEJP3/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TDOZGR3T7FVO5JSZWK2QPR7AOFIEJTIZ/https://seclists.org/bugtraq/2019/May/40https://security.FreeBSD.org/advisories/FreeBSD-SA-19:03.wpa.aschttps://w1.fi/security/2019-3/https://www.synology.com/security/advisory/Synology_SA_19_16http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00021.htmlhttp://packetstormsecurity.com/files/152914/FreeBSD-Security-Advisory-FreeBSD-SA-19-03.wpa.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/56OBBOJJSKRTDGEXZOVFSTP4HDSDBLAE/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVMJOFEYBGXZLFF5IOLW67SSOPKFEJP3/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TDOZGR3T7FVO5JSZWK2QPR7AOFIEJTIZ/https://seclists.org/bugtraq/2019/May/40https://security.FreeBSD.org/advisories/FreeBSD-SA-19:03.wpa.aschttps://w1.fi/security/2019-3/https://www.synology.com/security/advisory/Synology_SA_19_16
2019-04-17
Published