Detections
Analytics

Google: sys-kernel/cchost-kernel-6_18, sys-kernel/csql-kernel-6_18, sys-kernel/lakitu-kernel-6_18, sys-kernel/lakitu-nc-kernel-6_18: security update to 20198.0.0

medium Tenable Cloud Security Plugin ID 475580

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: smb: client: fix OOB struct field
 reads in move_smb2_ea_to_cifs() In move_smb2_ea_to_cifs(), the while (src_size > 0) loop condition is
 insufficient. It allows iteration to continue even if the remaining src_size is too small to contain a
 complete smb2_ea_info structure. Consequently, reads of ea_name_length and ea_value_length can occur out-
 of-bounds. Fix this by ensuring src_size >= sizeof(*src) before attempting to read any structure fields.
 Additionally, reject any next_entry_offset that is smaller than sizeof(*src) or that would advance the
 pointer beyond the available buffer. Note that for calls where the server returns a malformed EA list, the
 error returned to userspace changes from -ENODATA (getxattr) or -ERANGE (listxattr) to -EIO. This
 correctly signals a server protocol error rather than misleadingly indicating "attribute not present" or
 "output buffer too small". (CVE-2026-98170)

Solution

Update the sys-kernel/cchost-kernel-6_18 library and its related packages to version 20198.0.0 or later.

See Also

https://storage.googleapis.com/cos-oval-vulnerability-feed/cos-138.oval.xml.tar.gz

Plugin Details

Severity: Medium

ID: 475580

Version: Revision 1.1

Type: Local

Published: 10/16/2026

Updated: 10/16/2026

Risk Information

VPR

Risk Factor: Low

Score: 2.1

Percentile: 8.28

Vendor

Vendor Severity: LOW

CVSS v2

Risk Factor: Medium

Base Score: 6.6

Temporal Score: 4.9

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

CVSS Score Source: CVE-2026-98170

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: 10/6/2026

Reference Information

CVE: CVE-2026-98170