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Echo: linux: security update to 6.1.133-1

medium Tenable Self-Hosted Container Security Plugin ID 463765

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: tee: optee: Fix supplicant wait loop
 OP-TEE supplicant is a user-space daemon and it's possible for it be hung or crashed or killed in the
 middle of processing an OP-TEE RPC call. It becomes more complicated when there is incorrect shutdown
 ordering of the supplicant process vs the OP-TEE client application which can eventually lead to system
 hang-up waiting for the closure of the client application. Allow the client process waiting in kernel for
 supplicant response to be killed rather than indefinitely waiting in an unkillable state. Also, a normal
 uninterruptible wait should not have resulted in the hung-task watchdog getting triggered, but the endless
 loop would. This fixes issues observed during system reboot/shutdown when supplicant got hung for some
 reason or gets crashed/killed which lead to client getting hung in an unkillable state. It in turn lead to
 system being in hung up state requiring hard power off/on to recover. (CVE-2025-21871)

Solution

Update the linux library and its related packages to version 6.1.133-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2025-21871

Plugin Details

Severity: Medium

ID: 463765

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 93.18

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C

CVSS Score Source: CVE-2025-21871

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: 1/28/2026

Vulnerability Publication Date: 3/14/2025

Reference Information

CVE: CVE-2025-21871