Bug 2283463 (CVE-2021-47566) - CVE-2021-47566 kernel: proc/vmcore: fix clearing user buffer by properly using clear_user()
Summary: CVE-2021-47566 kernel: proc/vmcore: fix clearing user buffer by properly usin...
Keywords:
Status: NEW
Alias: CVE-2021-47566
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 2283496
TreeView+ depends on / blocked
 
Reported: 2024-05-27 11:18 UTC by ybuenos
Modified: 2024-09-24 01:14 UTC (History)
50 users (show)

Fixed In Version: kernel 4.4.294, kernel 4.9.292, kernel 4.14.257, kernel 4.19.219, kernel 5.4.163, kernel 5.10.83, kernel 5.15.6, kernel 5.16
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2024:5281 0 None None None 2024-08-13 14:33:55 UTC
Red Hat Product Errata RHSA-2024:6993 0 None None None 2024-09-24 01:14:12 UTC

Description ybuenos 2024-05-27 11:18:59 UTC 
In the Linux kernel, the following vulnerability has been resolved:

proc/vmcore: fix clearing user buffer by properly using clear_user()

The Linux kernel CVE team has assigned CVE-2021-47566 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024052453-CVE-2021-47566-12b8@gregkh/T
Comment 2 Alex 2024-06-09 16:11:41 UTC 
The result of automatic check (that is developed by Alexander Larkin) for this CVE-2021-47566 is: CHECK	Maybe valid. Check manually. with impact MODERATE (that is an approximation based on flags DANGER DISK IMPROVEONLY  ; these flags parsed automatically based on patch data). Such automatic check happens only for Low/Moderates (and only when not from reporter, but parsing already existing CVE). Highs always checked manually (I check it myself and then we check it again in Remediation team). In rare cases some of the Moderates could be increased to High later.
Comment 10 errata-xmlrpc 2024-08-13 14:33:52 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.6 Telecommunications Update Service

Via RHSA-2024:5281 https://access.redhat.com/errata/RHSA-2024:5281
Comment 12 errata-xmlrpc 2024-09-24 01:14:08 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Extended Update Support

Via RHSA-2024:6993 https://access.redhat.com/errata/RHSA-2024:6993
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