CVE-2019-11555
Published: August 31, 2023Last modified: August 31, 2023
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.9 |
| Attack Vector | NETWORK |
| Attack complexity | HIGH |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | wpa_supplicant | Not affected (2.10-r4) |
| Stream | wpa_supplicant | Not affected (2.10-r7) |
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/package-announce%40lists.fedoraproject.org/message/5T7G763UECWR7FQXOJVL67PW7C5A3SA4/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DJKZHAT5KPUN26JL77EUH563GAH5XZ5C/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IQ6P2GI5GSXRNLNIUNPARFZQVDEIGVZD/
- 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