Detections
Analytics

Google: sys-kernel/cchost-kernel-6_12, sys-kernel/csql-kernel-6_12: security update to 19506.0.98

medium Tenable Cloud Security Plugin ID 472533

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: vsock/virtio: fix potential underflow
 in virtio_transport_get_credit() The credit calculation in virtio_transport_get_credit() uses unsigned
 arithmetic: ret = vvs->peer_buf_alloc - (vvs->tx_cnt - vvs->peer_fwd_cnt); If the peer shrinks its
 advertised buffer (peer_buf_alloc) while bytes are in flight, the subtraction can underflow and produce a
 large positive value, potentially allowing more data to be queued than the peer can handle. Reuse
 virtio_transport_has_space() which already handles this case and add a comment to make it clear why we are
 doing that. [Stefano: use virtio_transport_has_space() instead of duplicating the code] [Stefano: tweak
 the commit message] (CVE-2026-23069)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19506.0.98 or later.

See Also

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

Plugin Details

Severity: Medium

ID: 472533

Version: Revision 1.1

Type: Local

Published: 10/3/2026

Updated: 10/3/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.52

Vendor

Vendor Severity: MEDIUM

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2026-23069

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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: 2/4/2026

Reference Information

CVE: CVE-2026-23069