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 19506.299.116

high Tenable Cloud Security Plugin ID 472264

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: fs/ntfs3: validate lcns_follow in
 log_replay conversion log_replay() converts DIR_PAGE_ENTRY_32 records into DIR_PAGE_ENTRY records when
 replaying version 0 restart tables. During this conversion, the memmove() length is derived directly from
 the on-disk lcns_follow field: memmove(&dp->vcn, &dp0->vcn_low, 2 * sizeof(u64) +
 le32_to_cpu(dp->lcns_follow) * sizeof(u64)); check_rstbl() validates restart table structure, but does not
 constrain per-entry lcns_follow values relative to the entry size. A malformed filesystem image can
 provide an oversized lcns_follow value, causing the conversion memmove() to access memory beyond the
 bounds of the allocated restart table buffer. The same field is later used to bound iteration over
 page_lcns[], so validating lcns_follow during conversion also prevents downstream out-of-bounds access
 from the same malformed metadata. Compute the maximum valid lcns_follow from the already-validated restart
 table entry size and reject entries that exceed this bound. Reuse the existing t16/t32 scratch variables
 already declared in log_replay() to avoid introducing new declarations. [almaz.alexandrovich@paragon-
 software.com: fixed the conflicts] (CVE-2026-64533)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19506.299.116 or later.

See Also

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

Plugin Details

Severity: High

ID: 472264

Version: Revision 1.1

Type: Local

Published: 10/3/2026

Updated: 10/3/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.12

Vendor

Vendor Severity: LOW

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2026-64533

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/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: 7/27/2026

Reference Information

CVE: CVE-2026-64533