Bug 859918 (CVE-2012-4445) - CVE-2012-4445 hostapd, wpa_supplicant: DoS (abort) by processing certain fragmented EAP-TLS messages
Summary: CVE-2012-4445 hostapd, wpa_supplicant: DoS (abort) by processing certain frag...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2012-4445
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 864051 864596
Blocks: 859922 864602
TreeView+ depends on / blocked
 
Reported: 2012-09-24 11:53 UTC by Jan Lieskovsky
Modified: 2019-09-29 12:55 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2012-10-31 10:25:16 UTC


Attachments (Terms of Use)
Proposed eap_server_tls_process_fragment() patch by Jouni Malinen from the hostapd project (872 bytes, patch)
2012-09-24 11:58 UTC, Jan Lieskovsky
no flags Details | Diff

Description Jan Lieskovsky 2012-09-24 11:53:14 UTC
A denial of service flaw was found in the way hostapd, a user space daemon for access point and authentication servers, processed certain fragmented EAP-TLS messages. A remote attacker could send a specially-crafted EAP-TLS message to hostapd that, when processed would lead to hostapd daemon abort.

Acknowledgements:

Red Hat would like to thank Timo Warns of PRESENSE Technologies GmbH for reporting this issue.

Comment 2 Jan Lieskovsky 2012-09-24 11:55:33 UTC
This issue affects the versions of the hostapd package, as shipped with Fedora release of 16 and 17.

Comment 3 Jan Lieskovsky 2012-09-24 11:56:17 UTC
Preliminary embargo date for this issue has been set up to Monday, 8-th October 2012.

Comment 4 Jan Lieskovsky 2012-09-24 11:58:16 UTC
Created attachment 616508 [details]
Proposed eap_server_tls_process_fragment() patch by Jouni Malinen from the hostapd project

Comment 6 Jan Lieskovsky 2012-09-24 16:06:53 UTC
The CVE identifier of CVE-2012-4445 has been assigned to this issue.

Comment 8 Jan Lieskovsky 2012-10-08 13:01:16 UTC
Public now via:
http://www.openwall.com/lists/oss-security/2012/10/08/3

Comment 9 Jan Lieskovsky 2012-10-08 13:02:46 UTC
Created hostapd tracking bugs for this issue

Affects: fedora-all [bug 864051]

Comment 12 Fedora Update System 2012-10-13 02:59:27 UTC
hostapd-1.0-3.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 13 Fedora Update System 2012-10-18 00:28:45 UTC
hostapd-0.7.3-10.fc16 has been pushed to the Fedora 16 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 17 Huzaifa S. Sidhpurwala 2012-10-31 10:18:13 UTC
Statement:

Not Vulnerable. This issue does not affect the version of wpa_supplicant as shipped with Red Hat Enterprise Linux 5 and 6.

Comment 18 Huzaifa S. Sidhpurwala 2012-10-31 10:21:23 UTC
This issue does not affect the versions of the wpa_supplicant package, as shipped with Fedora release of 16 and 17.


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