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 19506.299.60

high Tenable Self-Hosted Container Security Plugin ID 472048

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: NFSv4/pNFS: reject zero-length r_addr
 in nfs4_decode_mp_ds_addr nfs4_decode_mp_ds_addr() decodes the r_netid and r_addr opaques of a netaddr4
 from a GETDEVICEINFO multipath-DS body, then immediately calls strrchr(buf, '.') to locate the port
 separator. Both decodes use xdr_stream_decode_string_dup(), and the current code checks only "nlen < 0" /
 "rlen < 0" before dereferencing the returned string. When the on-wire opaque has length zero,
 xdr_stream_decode_opaque_inline() returns 0 and xdr_stream_decode_string_dup() falls through to its "*str
 = NULL; return ret" tail, leaving buf NULL with a return value of 0. The "< 0" check does not catch this,
 and the next line is strrchr(NULL, '.'), a kernel NULL pointer dereference reachable from any pNFS-
 flexfile client mounted against a malicious or compromised metadata server. Reject the zero-length cases
 explicitly so the decoder fails with -EBADMSG (treated as a malformed GETDEVICEINFO body) instead of
 panicking the client. (CVE-2026-53391)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19506.299.60 or later.

See Also

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

Plugin Details

Severity: High

ID: 472048

Version: Revision 1.1

Type: Local

Published: 10/3/2026

Updated: 10/3/2026

Risk Information

VPR

Risk Factor: Medium

Score: 5.7

Percentile: 96.26

Vendor

Vendor Severity: HIGH

CVSS v2

Risk Factor: Medium

Base Score: 6

Temporal Score: 4.4

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

CVSS Score Source: CVE-2026-53391

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/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: 7/8/2026

Reference Information

CVE: CVE-2026-53391