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Echo: linux: security update to 6.6.15-1

medium Tenable Self-Hosted Container Security Plugin ID 465578

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: bpf: Guard stack limits against 32bit
 overflow This patch promotes the arithmetic around checking stack bounds to be done in the 64-bit domain,
 instead of the current 32bit. The arithmetic implies adding together a 64-bit register with a int offset.
 The register was checked to be below 1<<29 when it was variable, but not when it was fixed. The offset
 either comes from an instruction (in which case it is 16 bit), from another register (in which case the
 caller checked it to be below 1<<29 [1]), or from the size of an argument to a kfunc (in which case it can
 be a u32 [2]). Between the register being inconsistently checked to be below 1<<29, and the offset being
 up to an u32, it appears that we were open to overflowing the `int`s which were currently used for
 arithmetic. [1] https://github.com/torvalds/linux/blob/815fb87b753055df2d9e50f6cd80eb10235fe3e9/kernel/bpf
 /verifier.c#L7494-L7498 [2] https://github.com/torvalds/linux/blob/815fb87b753055df2d9e50f6cd80eb10235fe3e
 9/kernel/bpf/verifier.c#L11904 (CVE-2023-52676)

Solution

Update the linux library and its related packages to version 6.6.15-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2023-52676

Plugin Details

Severity: Medium

ID: 465578

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

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-2023-52676

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: 5/17/2024

Reference Information

CVE: CVE-2023-52676