Bottlerocket: bottlerocket-kernel-5.15, kernel-5.15: security update to 5.15.179bottlerocket-kernel-6.1, kernel-6.1: security update to 6.1.131

medium Tenable Self-Hosted Container Security Plugin ID 428202

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: ipv6: mcast: add RCU protection to
mld_newpack() mld_newpack() can be called without RTNL or RCU being held. Note that we no longer can use
sock_alloc_send_skb() because ipv6.igmp_sk uses GFP_KERNEL allocations which can sleep. Instead use
alloc_skb() and charge the net->ipv6.igmp_sk socket under RCU protection. (CVE-2025-21758)

Plugin Details

Severity: Medium

ID: 428202

Version: Revision 1.2

Type: Local

Family: Bottlerocket Local Security Checks

Published: 6/30/2025

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

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-2025-21758

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

Vulnerability Publication Date: 2/27/2025

Reference Information

CVE: CVE-2025-21758

Detections

Analytics