CVE-2019-11555

medium
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

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.

References

http://www.openwall.com/lists/oss-security/2019/04/26/1

https://lists.debian.org/debian-lts-announce/2019/07/msg00030.html

https://lists.fedoraproject.org/archives/list/[email protected]/message/5T7G763UECWR7FQXOJVL67PW7C5A3SA4/

https://lists.fedoraproject.org/archives/list/[email protected]/message/DJKZHAT5KPUN26JL77EUH563GAH5XZ5C/

https://lists.fedoraproject.org/archives/list/[email protected]/message/IQ6P2GI5GSXRNLNIUNPARFZQVDEIGVZD/

https://seclists.org/bugtraq/2019/May/40

https://seclists.org/bugtraq/2019/May/64

https://security.FreeBSD.org/advisories/FreeBSD-SA-19:03.wpa.asc

https://security.gentoo.org/glsa/201908-25

https://usn.ubuntu.com/3969-1/

https://usn.ubuntu.com/3969-2/

https://w1.fi/security/2019-5/

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

https://www.debian.org/security/2019/dsa-4450

https://www.openwall.com/lists/oss-security/2019/04/18/6

Details

Source: MITRE

Published: 2019-04-26

Updated: 2019-06-07

Type: CWE-476

Risk Information

CVSS v2

Base Score: 4.3

Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 5.9

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 2.2

Severity: MEDIUM

Tenable Plugins

View all (14 total)

IDNameProductFamilySeverity
143704SUSE SLES12 Security Update : wpa_supplicant (SUSE-SU-2020:3424-1) (KRACK)NessusSuSE Local Security Checks
high
143627SUSE SLED15 / SLES15 Security Update : wpa_supplicant (SUSE-SU-2020:3380-1) (KRACK)NessusSuSE Local Security Checks
high
143321openSUSE Security Update : wpa_supplicant (openSUSE-2020-2053) (KRACK)NessusSuSE Local Security Checks
high
143304openSUSE Security Update : wpa_supplicant (openSUSE-2020-2059) (KRACK)NessusSuSE Local Security Checks
high
132827EulerOS Virtualization for ARM 64 3.0.5.0 : wpa_supplicant (EulerOS-SA-2020-1073)NessusHuawei Local Security Checks
high
132629EulerOS 2.0 SP8 : wpa_supplicant (EulerOS-SA-2020-1036)NessusHuawei Local Security Checks
high
127974GLSA-201908-25 : hostapd and wpa_supplicant: Denial of serviceNessusGentoo Local Security Checks
medium
127531Fedora 29 : hostapd (2019-d6bc3771a4)NessusFedora Local Security Checks
medium
127476Debian DLA-1867-1 : wpa security updateNessusDebian Local Security Checks
high
125743Fedora 30 : hostapd (2019-28d3ca93d2)NessusFedora Local Security Checks
medium
125414Debian DSA-4450-1 : wpa - security updateNessusDebian Local Security Checks
medium
124876Fedora 30 : 1:wpa_supplicant (2019-ff1b728d09)NessusFedora Local Security Checks
medium
124759Ubuntu 14.04 LTS : wpa vulnerability (USN-3969-2)NessusUbuntu Local Security Checks
medium
124696Ubuntu 16.04 LTS / 18.04 LTS / 18.10 / 19.04 : wpa vulnerability (USN-3969-1)NessusUbuntu Local Security Checks
medium