Detections
Analytics

Google: sys-kernel/cchost-kernel-6_12, sys-kernel/csql-kernel-6_12, sys-kernel/csql-kernel-6_6, sys-kernel/lakitu-kernel-6_12, sys-kernel/lakitu-kernel-6_6, sys-kernel/lakitu-nc-kernel-6_12, sys-kernel/lakitu-nc-kernel-6_6, sys-kernel/lakitu-vgpu-kernel-6_6: security update to 19216.700.7

critical Tenable Cloud Security Plugin ID 468788

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: scsi: target: iscsi: Reserve a
 terminator byte for the login payload iscsi_target_check_login_request() rejects a login PDU whose
 DataSegmentLength exceeds MAX_KEY_VALUE_PAIRS, but the test is '>' and login->req_buf is allocated with
 exactly MAX_KEY_VALUE_PAIRS bytes. Since iscsit_get_login_rx() receives payload_length + padding bytes,
 where padding = ((-payload_length) & 3); any payload_length from 8189 to 8192 fills the whole 8192 byte
 buffer. The write stays in bounds, but no byte is left for a NUL terminator. The buffer is subsequently
 consumed as a C string. In the CHAP path chap_check_algorithm() calls kstrdup(a_str), and extract_param()
 calls strstr(in_buf, pattern) followed by strlen_semi(), none of which take a length.
 convert_null_to_semi() additionally rewrites every embedded NUL to ';', so even a payload made of well
 formed NUL separated key=value records is left without a terminator. These walk past the end of the object
 into adjacent slab memory. It is reachable by an unauthenticated initiator against a portal configured for
 CHAP; when authentication is not required iscsi_login_zero_tsih_s2() rewrites AuthMethod to None and the
 CHAP path is never entered. Allocate one extra byte. kzalloc() zeroes it and nothing ever writes to it, as
 every writer copies to offset 0 for at most MAX_KEY_VALUE_PAIRS bytes, so the buffer is always terminated.
 (CVE-2026-90011)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19216.700.7 or later.

See Also

https://storage.googleapis.com/cos-oval-vulnerability-feed/cos-125.oval.xml.tar.gz

Plugin Details

Severity: Critical

ID: 468788

Version: Revision 1.5

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: 53.39

Vendor

Vendor Severity: HIGH

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7

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

CVSS Score Source: CVE-2026-90011

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/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: 9/16/2026

Reference Information

CVE: CVE-2026-90011