Google: sys-kernel/csql-kernel-6_1, sys-kernel/csql-kernel-6_6, sys-kernel/lakitu-kernel-6_1, sys-kernel/lakitu-kernel-6_6, sys-kernel/lakitu-nc-kernel-6_6, sys-kernel/lakitu-vgpu-kernel-6_6, sys-kernel/tpusev-kernel-6_6: security update to 18613.613.77

critical Tenable Self-Hosted Container Security Plugin ID 465978

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: netfilter: nf_conntrack_sip: don't use
simple_strtoul Replace unsafe port parsing in epaddr_len(), ct_sip_parse_header_uri(), and
ct_sip_parse_request() with a new sip_parse_port() helper that validates each digit against the buffer
limit, eliminating the use of simple_strtoul() which assumes NUL-terminated strings. The previous code
dereferenced pointers without bounds checks after sip_parse_addr() and relied on simple_strtoul() on non-
NUL-terminated skb data. A port that reaches the buffer limit without a trailing character is also
rejected as malformed. Also get rid of all simple_strtoul() usage in conntrack, prefer a stricter version
instead. There are intentional changes: - Bail out if number is > UINT_MAX and indicate a failure, same
for too long sequences. While we do accept 05535 as port 5535, we will not accept e.g.
'sip:10.0.0.1:005060'. While its syntactically valid under RFC 3261, we should restrict this to not waste
cycles when presented with malformed packets with 64k '0' characters. - Force base 10 in
ct_sip_parse_numerical_param(). This is used to fetch 'expire=' and 'rports='; both are expected to use
base-10. - In nf_nat_sip.c, only accept the parsed value if its within the 1k-64k range. - epaddr_len now
returns 0 if the port is invalid, as it already does for invalid ip addresses. This is intentional.
nf_conntrack_sip performs lots of guesswork to find the right parts of the message to parse. Being
stricter could break existing setups. Connection tracking helpers are designed to allow traffic to pass,
not to block it. Based on an earlier patch from Jenny Guanni Qu <[email protected]>. (CVE-2026-52986)

Solution

Update the sys-kernel/csql-kernel-6_1 library and its related packages to version 18613.613.77 or later.

Plugin Details

Severity: Critical

ID: 465978

Version: Revision 1.2

Type: Local

Family: Google COS Security Checks

Published: 10/2/2026

Updated: 10/3/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.16

Vendor

Vendor Severity: CRITICAL

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-52986

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/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: 6/3/2026

Reference Information

CVE: CVE-2026-52986

Detections

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