Detections
Analytics

Google: sys-kernel/csql-kernel-6_6, sys-kernel/lakitu-kernel-6_6, sys-kernel/lakitu-nc-kernel-6_6, sys-kernel/lakitu-vgpu-kernel-6_6: security update to 18867.528.43

high Tenable Cloud Security Plugin ID 467161

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: net: ipv4: bound TCP reordering sysctl
 writes and MTU probe sizes Reject invalid `net.ipv4.tcp_reordering` values before they reach TCP socket
 state. The sysctl is stored as an `int` but copied into the `u32` `tp->reordering` field for new sockets,
 so negative writes wrap to large values. With `tcp_mtu_probing=2`, the wrapped value can overflow the
 `tcp_mtu_probe()` size calculation and drive the MTU probing path into an out-of-bounds read. Route
 `tcp_reordering` writes through `proc_dointvec_minmax()` and require it to be at least 1. Also require
 `tcp_max_reordering` to be at least 1 so the configured maximum cannot become negative either. When
 registering the table for a non-init network namespace, relocate `extra2` pointers that refer into
 `init_net.ipv4` so the `tcp_reordering` upper bound follows that namespace's `tcp_max_reordering`. Harden
 `tcp_mtu_probe()` itself by computing `size_needed` as `u64`. This keeps the send queue and window checks
 from being bypassed through signed integer overflow. (CVE-2026-64422)

Solution

Update the sys-kernel/csql-kernel-6_6 library and its related packages to version 18867.528.43 or later.

See Also

https://storage.googleapis.com/cos-oval-vulnerability-feed/cos-121.oval.xml.tar.gz

Plugin Details

Severity: High

ID: 467161

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 6.3

Percentile: 96.43

Vendor

Vendor Severity: HIGH

CVSS v2

Risk Factor: Medium

Base Score: 6.2

Temporal Score: 4.6

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

CVSS Score Source: CVE-2026-64422

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.2

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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: 7/23/2026

Reference Information

CVE: CVE-2026-64422