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 19506.120.97

high Tenable Cloud Security Plugin ID 469318

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 in-place encryption
 corruption in SMB2_write() SMB2_write() places write payload in iov[1..n] as part of rq_iov.
 smb3_init_transform_rq() pointer-shares rq_iov, so crypt_message() encrypts iov[1] in-place, replacing the
 original plaintext with ciphertext. On a replayable error, the retry sends the same iov[1] which now
 contains ciphertext instead of the original data, resulting in corruption. The corruption is most likely
 to be observed when connections are unstable, as reconnects trigger write retries that re-send the
 already-encrypted data. This affects SFU mknod, MF symlinks, etc. On kernels before 6.10 (prior to the
 netfs conversion), sync writes also used this path and were similarly affected. The async write path
 wasn't unaffected as it uses rq_iter which gets deep-copied. Fix by moving the write payload into rq_iter
 via iov_iter_kvec(), so smb3_init_transform_rq() deep-copies it before encryption. (CVE-2026-43362)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19506.120.97 or later.

See Also

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

Plugin Details

Severity: High

ID: 469318

Version: Revision 1.4

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: 4.3

Percentile: 53.63

Vendor

Vendor Severity: LOW

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7

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

CVSS Score Source: CVE-2026-43362

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/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: 4/30/2026

Reference Information

CVE: CVE-2026-43362