Bug 1703417 (CVE-2019-11555) - CVE-2019-11555 wpa_supplicant: NULL pointer dereference due to improper fragmentation reassembly state validation in EAP-pwd implementation
Summary: CVE-2019-11555 wpa_supplicant: NULL pointer dereference due to improper fragm...
Status: CLOSED NOTABUG
Alias: CVE-2019-11555
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: impact=moderate,public=20190418,repor...
Keywords: Security
Depends On: 1712958 1712959 1703418
Blocks: 1703420
TreeView+ depends on / blocked
 
Reported: 2019-04-26 11:13 UTC by Marian Rehak
Modified: 2019-06-10 10:54 UTC (History)
9 users (show)

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Clone Of:
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Last Closed: 2019-06-10 10:54:48 UTC


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Description Marian Rehak 2019-04-26 11:13:30 UTC
EAP-pwd implementation in hostapd (EAP server) and wpa_supplicant (EAP peer) was discovered not to validate fragmentation reassembly state properly for a case where an unexpected fragment could be received. This could result in process termination due to NULL pointer dereference.

Comment 1 Marian Rehak 2019-04-26 11:13:41 UTC
Created wpa_supplicant tracking bugs for this issue:

Affects: fedora-all [bug 1703418]

Comment 5 Riccardo Schirone 2019-05-22 15:16:04 UTC
Created hostapd tracking bugs for this issue:

Affects: epel-all [bug 1712959]
Affects: fedora-all [bug 1712958]

Comment 6 Riccardo Schirone 2019-05-22 15:24:24 UTC
Statement:

This issue did not affect the versions of wpa_supplicant as shipped with Red Hat Enterprise Linux 5, and 6 as they did not include support for EAP-pwd.

This issue did not affect the versions of wpa_supplicant as shipped with Red Hat Enterprise Linux 7, and 8 as they are not compiled with EAP-pwd enabled. In particular, the CONFIG_EAP_PWD=y option is not set at compile time.


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