Google: sys-kernel/lakitu-kernel-6_1: security update to 17935.0.0

high Tenable Self-Hosted Container Security Plugin ID 451408

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: lwt: Fix return values of BPF xmit ops
BPF encap ops can return different types of positive values, such like NET_RX_DROP, NET_XMIT_CN,
NETDEV_TX_BUSY, and so on, from function skb_do_redirect and bpf_lwt_xmit_reroute. At the xmit hook, such
return values would be treated implicitly as LWTUNNEL_XMIT_CONTINUE in ip(6)_finish_output2. When this
happens, skbs that have been freed would continue to the neighbor subsystem, causing use-after-free bug
and kernel crashes. To fix the incorrect behavior, skb_do_redirect return values can be simply discarded,
the same as tc-egress behavior. On the other hand, bpf_lwt_xmit_reroute returns useful errors to local
senders, e.g. PMTU information. Thus convert its return values to avoid the conflict with
LWTUNNEL_XMIT_CONTINUE. (CVE-2023-53338)

Solution

Update the sys-kernel/lakitu-kernel-6_1 library and its related packages to version 17935.0.0 or later.

Plugin Details

Severity: High

ID: 451408

Version: Revision 1.1

Type: Local

Family: Google COS Security Checks

Published: 10/1/2026

Updated: 10/1/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.19

Vendor

Vendor Severity: LOW

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2023-53338

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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: 7/21/2021

Reference Information

CVE: CVE-2023-53338

Detections

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