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Echo: linux: security update to 6.5.3-1

medium Tenable Cloud Security Plugin ID 463954

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: coresight: Fix memory leak in
 acpi_buffer->pointer There are memory leaks reported by kmemleak: ... unreferenced object
 0xffff00213c141000 (size 1024): comm "systemd-udevd", pid 2123, jiffies 4294909467 (age 6062.160s) hex
 dump (first 32 bytes): 04 00 00 00 02 00 00 00 18 10 14 3c 21 00 ff ff ...........<!... 00 00 00 00 00 00
 00 00 03 00 00 00 10 00 00 00 ................ backtrace: [<000000004b7c9001>]
 __kmem_cache_alloc_node+0x2f8/0x348 [<00000000b0fc7ceb>] __kmalloc+0x58/0x108 [<0000000064ff4695>]
 acpi_os_allocate+0x2c/0x68 [<000000007d57d116>] acpi_ut_initialize_buffer+0x54/0xe0 [<0000000024583908>]
 acpi_evaluate_object+0x388/0x438 [<0000000017b2e72b>] acpi_evaluate_object_typed+0xe8/0x240
 [<000000005df0eac2>] coresight_get_platform_data+0x1b4/0x988 [coresight] ... The ACPI buffer memory
 (buf.pointer) should be freed. But the buffer is also used after returning from acpi_get_dsd_graph(). Move
 the temporary variables buf to acpi_coresight_parse_graph(), and free it before the function return to
 prevent memory leak. (CVE-2023-53261)

Solution

Update the linux library and its related packages to version 6.5.3-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2023-53261

Plugin Details

Severity: Medium

ID: 463954

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.32

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-2023-53261

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: 9/16/2025

Vulnerability Publication Date: 9/15/2025

Reference Information

CVE: CVE-2023-53261