CVE-2019-11555
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
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 3.25% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 88.2% of scored records. A rank, not a probability.
- NVD base score
- 5.9 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2019-04-26 21:16Z7 YR AGO
- Last updated
- 2024-08-04 22:55Z2 YR AGO
- Reserved
- 2019-04-26
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-476NULL Pointer DereferenceBase
- Data version
- 5.1
- Document digest
- 0ba91dc0e7bd2acd64131f7823f465361dd5f291300c6e65f9e61658f3d9429e
05 Affected products
06 References
- www.openwall.comhttps://www.openwall.com/lists/oss-security/2019/04/18/6
- w1.fihttps://w1.fi/security/2019-5/eap-pwd-message-reassembly-issue-with-unexpected-fragment.txt
- w1.fihttps://w1.fi/security/2019-5/
- www.openwall.com[oss-security] 20190426 Re: wpa_supplicant/hostapd: EAP-pwd message reassembly issue with unexpected fragmenthttp://www.openwall.com/lists/oss-security/2019/04/26/1
- usn.ubuntu.comUSN-3969-1https://usn.ubuntu.com/3969-1/
- usn.ubuntu.comUSN-3969-2https://usn.ubuntu.com/3969-2/
- lists.fedoraproject.orgFEDORA-2019-ff1b728d09https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5T7G763UECWR7FQXOJVL67PW7C5A3SA4/
- security.freebsd.orgFreeBSD-SA-19:03https://security.FreeBSD.org/advisories/FreeBSD-SA-19:03.wpa.asc
- seclists.org20190515 FreeBSD Security Advisory FreeBSD-SA-19:03.wpahttps://seclists.org/bugtraq/2019/May/40
- www.debian.orgDSA-4450https://www.debian.org/security/2019/dsa-4450
- seclists.org20190527 [SECURITY] [DSA 4450-1] wpa security updatehttps://seclists.org/bugtraq/2019/May/64
- lists.fedoraproject.orgFEDORA-2019-28d3ca93d2https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IQ6P2GI5GSXRNLNIUNPARFZQVDEIGVZD/
- lists.debian.org[debian-lts-announce] 20190731 [SECURITY] [DLA 1867-1] wpa security updatehttps://lists.debian.org/debian-lts-announce/2019/07/msg00030.html
- lists.fedoraproject.orgFEDORA-2019-d6bc3771a4https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DJKZHAT5KPUN26JL77EUH563GAH5XZ5C/
- security.gentoo.orgGLSA-201908-25https://security.gentoo.org/glsa/201908-25
07 Fixed in
Debian 12
- wpa Fixed in 2:2.7+git20190128+0c1e29f-5
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- wpa Fixed in 2:2.7+git20190128+0c1e29f-5
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- wpa Fixed in 2:2.7+git20190128+0c1e29f-5
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- wpa Fixed in 2.4-0ubuntu6.5
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- wpa Fixed in 2:2.6-15ubuntu2.3
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 14.04 LTS
- wpa Fixed in 2.1-0ubuntu1.7+esm1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.