Detections
Analytics

Bottlerocket: bottlerocket-kernel-6.1, kernel-6.1: security update to 6.1.186bottlerocket-kernel-6.12, kernel-6.12: security update to 6.12.103bottlerocket-kernel-6.18, kernel-6.18: security update to 6.18.48

high Tenable Self-Hosted Container Security Plugin ID 476070

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: xfrm: ah6: validate routing header
 segments_left AH6 rearranges routing-header addresses before computing or verifying the ICV.
 ipv6_rearrange_rthdr() assumes that segments_left is not larger than the number of addresses described by
 the routing header's hdrlen field. That assumption does not hold for raw IPv6 HDRINCL packets. A packet
 with hdrlen equal to 2 describes one address, but can carry an arbitrary segments_left value. With
 segments_left equal to 255, the function moves its address pointer 4,064 bytes backwards and passes a
 4,064-byte length to memmove(), resulting in an out-of-bounds access. Validate the invariant locally
 before modifying the routing header or performing any address-pointer arithmetic, and propagate malformed-
 header errors to the existing AH6 input and output error paths. (CVE-2026-80844)

Solution

Update the bottlerocket-kernel-6.1 library and its related packages to version 6.1.186 or later.

Plugin Details

Severity: High

ID: 476070

Version: Revision 1.1

Type: Local

Published: 10/16/2026

Updated: 10/16/2026

Risk Information

VPR

Risk Factor: High

Score: 7.5

Percentile: 98.25

CVSS v2

Risk Factor: High

Base Score: 8.7

Temporal Score: 6.8

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

CVSS Score Source: CVE-2026-80844

CVSS v3

Risk Factor: High

Base Score: 8.3

Temporal Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 9/4/2026

Reference Information

CVE: CVE-2026-80844