Detections
Analytics
Echo: linux: security update to 6.8.11-1
medium Tenable Cloud Security Plugin ID 455228
Description
There are packages installed that are affected by a vulnerability referenced in the following CVE:- In the Linux kernel, the following vulnerability has been resolved: mm/userfaultfd: reset ptes when
close() for wr-protected ones Userfaultfd unregister includes a step to remove wr-protect bits from all
the relevant pgtable entries, but that only covered an explicit UFFDIO_UNREGISTER ioctl, not a close() on
the userfaultfd itself. Cover that too. This fixes a WARN trace. The only user visible side effect is the
user can observe leftover wr-protect bits even if the user close()ed on an userfaultfd when releasing the
last reference of it. However hopefully that should be harmless, and nothing bad should happen even if so.
This change is now more important after the recent page-table-check patch we merged in mm-unstable
(446dd9ad37d0 ("mm/page_table_check: support userfault wr-protect entries")), as we'll do sanity check on
uffd-wp bits without vma context. So it's better if we can 100% guarantee no uffd-wp bit leftovers, to
make sure each report will be valid. (CVE-2024-36881)
Solution
Update the linux library and its related packages to version 6.8.11-1 or later.See Also
Plugin Details
Severity: Medium
ID: 455228
Version: Revision 1.1
Type: Local
Family: Echo Local Security Checks
Published: 10/1/2026
Updated: 10/1/2026
Risk Information
VPR
Risk Factor: Medium
Score: 5
Percentile: 93.48
CVSS v2
Risk Factor: Medium
Base Score: 4.5
Temporal Score: 3.3
Vector: CVSS2#AV:L/AC:H/Au:S/C:P/I:N/A:C
CVSS Score Source: CVE-2024-36881
CVSS v3
Risk Factor: Medium
Base Score: 5.5
Temporal Score: 4.8
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
Exploit Ease: No known exploits are available
Patch Publication Date: 9/15/2025
Vulnerability Publication Date: 5/30/2024
Reference Information
CVE: CVE-2024-36881