Bug 1775015 (CVE-2019-19063) - CVE-2019-19063 kernel: Two memory leaks in the rtl_usb_probe() function in drivers/net/wireless/realtek/rtlwifi/usb.c allow for a DoS
Summary: CVE-2019-19063 kernel: Two memory leaks in the rtl_usb_probe() function in dr...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2019-19063
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1775016 1829847 1829848 1829849 1829850 1829851
Blocks: 1775018
TreeView+ depends on / blocked
 
Reported: 2019-11-21 11:24 UTC by Marian Rehak
Modified: 2021-02-16 21:00 UTC (History)
45 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2020-09-29 21:58:55 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2020:4416 0 None None None 2020-10-29 15:09:30 UTC
Red Hat Product Errata RHBA-2020:4417 0 None None None 2020-10-29 15:07:59 UTC
Red Hat Product Errata RHBA-2020:4418 0 None None None 2020-10-29 15:13:25 UTC
Red Hat Product Errata RHBA-2020:4419 0 None None None 2020-10-29 15:11:31 UTC
Red Hat Product Errata RHBA-2020:4420 0 None None None 2020-10-29 15:50:57 UTC
Red Hat Product Errata RHSA-2020:4060 0 None None None 2020-09-29 20:51:55 UTC
Red Hat Product Errata RHSA-2020:4062 0 None None None 2020-09-29 18:58:16 UTC
Red Hat Product Errata RHSA-2020:4431 0 None None None 2020-11-04 00:49:42 UTC
Red Hat Product Errata RHSA-2020:4609 0 None None None 2020-11-04 02:21:33 UTC

Description Marian Rehak 2019-11-21 11:24:14 UTC 
Two memory leaks in the rtl_usb_probe() function in drivers/net/wireless/realtek/rtlwifi/usb.c in the Linux kernel through 5.3.11 allow attackers to cause a denial of service (memory consumption).

Upstream Issue:

https://github.com/torvalds/linux/commit/3f93616951138a598d930dcaec40f2bfd9ce43bb
Comment 1 Marian Rehak 2019-11-21 11:24:35 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1775016]
Comment 2 Dave Baker 2019-11-25 17:21:41 UTC 
Closing services.  No wifi usage in this environment.
Comment 4 Petr Matousek 2020-04-30 13:17:45 UTC 
Statement:

This issue is rated as having Low impact because of the preconditions needed to trigger the resource cleanup code path (physical access).
Comment 5 Petr Matousek 2020-04-30 13:17:49 UTC 
Mitigation:

In order to mitigate this issue it is possible to prevent the affected code from being loaded by blacklisting the kernel module rtl8192cu. For instructions relating to how to blacklist a kernel module refer to: https://access.redhat.com/solutions/41278 .
Comment 9 errata-xmlrpc 2020-09-29 18:58:11 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2020:4062 https://access.redhat.com/errata/RHSA-2020:4062
Comment 10 errata-xmlrpc 2020-09-29 20:51:51 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2020:4060 https://access.redhat.com/errata/RHSA-2020:4060
Comment 11 Product Security DevOps Team 2020-09-29 21:58:55 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-2019-19063
Comment 27 errata-xmlrpc 2020-11-04 00:49:38 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2020:4431 https://access.redhat.com/errata/RHSA-2020:4431
Comment 28 errata-xmlrpc 2020-11-04 02:21:30 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2020:4609 https://access.redhat.com/errata/RHSA-2020:4609
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