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…
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.
Timeline
ID reserved
By mitre
Published
- 5 years later
· 5 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Medium5.9 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 3.3% · top 12% of all CVEs (7 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.9.
Weakness
Affected products
n/a
- affected n/a
References (15)
- https://www.openwall.com/lists/oss-security/2019/04/18/6 (opens in a new tab)x_refsource_MISCx_transferred
- https://w1.fi/security/2019-5/eap-pwd-message-reassembly-issue-with-unexpected-fragment.txt (opens in a new tab)x_refsource_MISCx_transferred
- https://w1.fi/security/2019-5/ (opens in a new tab)x_refsource_MISCx_transferred
- [oss-security] 20190426 Re: wpa_supplicant/hostapd: EAP-pwd message reassembly issue with unexpected fragment (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- USN-3969-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-3969-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- FEDORA-2019-ff1b728d09 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- FreeBSD-SA-19:03 (opens in a new tab)vendor-advisoryx_refsource_FREEBSDx_transferred
- 20190515 FreeBSD Security Advisory FreeBSD-SA-19:03.wpa (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- DSA-4450 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 20190527 [SECURITY] [DSA 4450-1] wpa security update (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- FEDORA-2019-28d3ca93d2 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- [debian-lts-announce] 20190731 [SECURITY] [DLA 1867-1] wpa security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- FEDORA-2019-d6bc3771a4 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- GLSA-201908-25 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2019-11555)Record last updated .