Detections
Analytics

Google: sys-kernel/cchost-kernel-6_12, sys-kernel/csql-kernel-6_12, sys-kernel/lakitu-kernel-6_12, sys-kernel/lakitu-nc-kernel-6_12: security update to 19506.224.7

high Tenable Cloud Security Plugin ID 469677

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: validate dacloffset
 before building DACL pointers parse_sec_desc(), build_sec_desc(), and the chown path in
 id_mode_to_cifs_acl() all add the server-supplied dacloffset to pntsd before proving a DACL header fits
 inside the returned security descriptor. On 32-bit builds a malicious server can return dacloffset near
 U32_MAX, wrap the derived DACL pointer below end_of_acl, and then slip past the later pointer-based bounds
 checks. build_sec_desc() and id_mode_to_cifs_acl() can then dereference DACL fields from the wrapped
 pointer in the chmod/chown rewrite paths. Validate dacloffset numerically before building any DACL pointer
 and reuse the same helper at the three DACL entry points. (CVE-2026-46195)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19506.224.7 or later.

See Also

https://storage.googleapis.com/cos-oval-vulnerability-feed/cos-129.oval.xml.tar.gz

Plugin Details

Severity: High

ID: 469677

Version: Revision 1.6

Type: Local

Published: 10/3/2026

Updated: 10/6/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.27

Vendor

Vendor Severity: LOW

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-46195

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:A/AC:H/PR:N/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: 5/26/2026

Reference Information

CVE: CVE-2026-46195