Google: sys-kernel/cchost-kernel-6_12, sys-kernel/csql-kernel-6_12: security update to 19506.0.66

high Tenable Self-Hosted Container Security Plugin ID 472523

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: apparmor: validate DFA start states
are in bounds in unpack_pdb Start states are read from untrusted data and used as indexes into the DFA
state tables. The aa_dfa_next() function call in unpack_pdb() will access
dfa->tables[YYTD_ID_BASE][start], and if the start state exceeds the number of states in the DFA, this
results in an out-of-bound read. ================================================================== BUG:
KASAN: slab-out-of-bounds in aa_dfa_next+0x2a1/0x360 Read of size 4 at addr ffff88811956fb90 by task
su/1097 ... Reject policies with out-of-bounds start states during unpacking to prevent the issue.
(CVE-2026-23269)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19506.0.66 or later.

Plugin Details

Severity: High

ID: 472523

Version: Revision 1.1

Type: Local

Family: Google COS Security Checks

Published: 10/3/2026

Updated: 10/3/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.45

Vendor

Vendor Severity: LOW

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-2026-23269

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: 3/18/2026

Reference Information

CVE: CVE-2026-23269

Detections

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