CVE-2019-11555

Home/CVE/The EAP-pwd implementation in hostapd (EAP server) before 2.8 and wpa_supplicant (EAP peer) before 2.8 does not validate

CVE

The EAP-pwd implementation in hostapd (EAP server) before 2.8 and wpa_supplicant (EAP peer) before 2.8 does not validate

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.

MEDIUM · CVSS 5.9 EPSS 0.09377

Monitor

EPSS percentile: top 7% of all CVEs by exploitation likelihood

Sigma rules0 YARA rules0

⬡

Weakness Classification

CWE-476NULL Pointer Dereference

▤

Affected Products & Versions

w1.fi hostapd< 2.8

w1.fi wpa supplicant< 2.8

▣

Scoring & Timeline

5.9

MEDIUM · CVSS v3.0 · cve@mitre.org

View on NVD

Attack Vector

Network Adjacent Local Physical

Attack Complexity

Low High

Privileges Required

None Low High

User Interaction

None Required

Scope

Unchanged Changed

Confidentiality

None Low High

Integrity

None Low High

Availability

None Low High

Published to NVD26 Apr 2019 · 10:29 PM

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

⚑

Vendor Advisories

suse-csafopenSUSE-SU-2024:11515-1
suse-csafSUSE-SU-2022:1853-1
suse-csafopenSUSE-SU-2020:2059-1
suse-csafopenSUSE-SU-2020:2053-1
suse-csafSUSE-SU-2020:3380-1
Show all 8 vendor advisoriessuse-csafSUSE-SU-2020:3424-1
usnUSN-3969-2
usnUSN-3969-1

🔗

References & Sources

Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.

http://www.openwall.com/lists/oss-security/2019/04/26/1Mailing ListPatchThird Party Advisory

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

Show all 15 references

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/PatchVendor Advisory

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

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

https://www.openwall.com/lists/oss-security/2019/04/18/6Mailing ListPatchThird Party Advisory

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