NULL Pointer Dereference Affecting wpa package, versions <2:2.6-15ubuntu2.3
Threat Intelligence
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Start learning- Snyk IDSNYK-UBUNTU1804-WPA-345611
- published27 Apr 2019
- disclosed26 Apr 2019
Introduced: 26 Apr 2019
CVE-2019-11555 (opens in a new tab)How to fix?
Upgrade Ubuntu:18.04 wpa to version 2:2.6-15ubuntu2.3 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream wpa package and not the wpa package as distributed by Ubuntu.
See How to fix? for Ubuntu:18.04 relevant fixed versions and status.
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://people.ubuntu.com/~ubuntu-security/cve/CVE-2019-11555
- https://seclists.org/bugtraq/2019/May/40
- https://seclists.org/bugtraq/2019/May/64
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11555
- https://www.debian.org/security/2019/dsa-4450
- https://security-tracker.debian.org/tracker/CVE-2019-11555
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DJKZHAT5KPUN26JL77EUH563GAH5XZ5C/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5T7G763UECWR7FQXOJVL67PW7C5A3SA4/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IQ6P2GI5GSXRNLNIUNPARFZQVDEIGVZD/
- https://security.FreeBSD.org/advisories/FreeBSD-SA-19:03.wpa.asc
- https://security.gentoo.org/glsa/201908-25
- https://w1.fi/security/2019-5/
- https://w1.fi/security/2019-5/eap-pwd-message-reassembly-issue-with-unexpected-fragment.txt
- https://lists.debian.org/debian-lts-announce/2019/07/msg00030.html
- https://www.openwall.com/lists/oss-security/2019/04/18/6
- http://www.openwall.com/lists/oss-security/2019/04/26/1
- https://usn.ubuntu.com/3969-1/
- https://usn.ubuntu.com/3969-2/
- 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/