Bug 1919791 (CVE-2020-0404) - CVE-2020-0404 kernel: avoid cyclic entity chains due to malformed USB descriptors
Summary: CVE-2020-0404 kernel: avoid cyclic entity chains due to malformed USB descrip...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2020-0404
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: 1919792 1921871 1921872
Blocks: 1919788
TreeView+ depends on / blocked
 
Reported: 2021-01-25 07:48 UTC by Dhananjay Arunesh
Modified: 2022-06-16 11:22 UTC (History)
46 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
A flaw linked list corruption in the Linux kernel for USB Video Class driver functionality was found in the way user connects web camera to the USB port. A local user could use this flaw to crash the system.
Clone Of:
Environment:
Last Closed: 2022-05-11 06:45:42 UTC


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2022:2229 0 None None None 2022-05-12 11:26:10 UTC
Red Hat Product Errata RHBA-2022:4630 0 None None None 2022-05-18 11:45:55 UTC
Red Hat Product Errata RHBA-2022:4693 0 None None None 2022-05-19 05:10:21 UTC
Red Hat Product Errata RHBA-2022:4969 0 None None None 2022-06-08 18:39:26 UTC
Red Hat Product Errata RHBA-2022:5088 0 None None None 2022-06-16 11:22:41 UTC
Red Hat Product Errata RHSA-2022:1975 0 None None None 2022-05-10 14:38:47 UTC
Red Hat Product Errata RHSA-2022:1988 0 None None None 2022-05-10 14:44:32 UTC

Description Dhananjay Arunesh 2021-01-25 07:48:01 UTC
A vulnerability was found in Kernel, where an avoid cyclic entity chains due to malformed USB descriptors Way back in 2017, fuzzing the 4.14-rc2 USB stack with syzkaller kicked up the UVC chain scanning code.

References:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=68035c80e129c4cfec659aac4180354530b26527

Comment 1 Dhananjay Arunesh 2021-01-25 07:48:48 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1919792]

Comment 2 Justin M. Forbes 2021-01-25 17:24:08 UTC
This was fixed for Fedora with the 5.4.19 stable kernel updates.

Comment 4 Alex 2021-01-28 19:01:20 UTC
Mitigation:

To mitigate this issue, prevent the module uvcvideo from being loaded. Please see https://access.redhat.com/solutions/41278 for information on how to blacklist a kernel module to prevent it from loading automatically.

Comment 18 errata-xmlrpc 2022-05-10 14:38:43 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2022:1975 https://access.redhat.com/errata/RHSA-2022:1975

Comment 19 errata-xmlrpc 2022-05-10 14:44:29 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2022:1988 https://access.redhat.com/errata/RHSA-2022:1988

Comment 20 Product Security DevOps Team 2022-05-11 06:45:38 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-2020-0404


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