Bug 1760306 (CVE-2019-16746) - CVE-2019-16746 kernel: buffer-overflow hardening in WiFi beacon validation code.
Summary: CVE-2019-16746 kernel: buffer-overflow hardening in WiFi beacon validation code.
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2019-16746
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: 1748266 1760307 1781448 1781449 1781450 1781451 1781452 1781453
Blocks: 1760308
TreeView+ depends on / blocked
 
Reported: 2019-10-10 11:12 UTC by Dhananjay Arunesh
Modified: 2020-03-31 22:35 UTC (History)
49 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
A flaw in the Linux kernel's WiFi beacon validation code was discovered. The code does not check the length of the variable length elements in the beacon head potentially leading to a buffer overflow. System availability, as well as data confidentiality and integrity, can be impacted by this vulnerability.
Clone Of:
Environment:
Last Closed: 2020-03-31 22:35:35 UTC


Attachments (Terms of Use)


Links
System ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2020:1016 None None None 2020-03-31 19:12:05 UTC
Red Hat Product Errata RHSA-2020:1070 None None None 2020-03-31 19:21:16 UTC

Description Dhananjay Arunesh 2019-10-10 11:12:09 UTC
An issue was discovered in the Linux kernels wifi beacon validation code. The parser does not check the length of variable length elements in the beacon head.  This could lead to a buffer overflow in code that relies on these values being within the specification.

Reference:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f88eb7c0d002a67ef31aeb7850b42ff69abc46dc

Comment 1 Dhananjay Arunesh 2019-10-10 11:12:46 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1760307]

Comment 8 errata-xmlrpc 2020-03-31 19:12:02 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2020:1016 https://access.redhat.com/errata/RHSA-2020:1016

Comment 9 errata-xmlrpc 2020-03-31 19:21:13 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2020:1070 https://access.redhat.com/errata/RHSA-2020:1070

Comment 10 Product Security DevOps Team 2020-03-31 22:35:35 UTC
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2019-16746


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