Echo: linux: security update to 6.1.170-1

high Tenable Self-Hosted Container Security Plugin ID 462110

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: fix
Content-Length u32 truncation in sip_help_tcp() sip_help_tcp() parses the SIP Content-Length header with
simple_strtoul(), which returns unsigned long, but stores the result in unsigned int clen. On 64-bit
systems, values exceeding UINT_MAX are silently truncated before computing the SIP message boundary. For
example, Content-Length 4294967328 (2^32 + 32) is truncated to 32, causing the parser to miscalculate
where the current message ends. The loop then treats trailing data in the TCP segment as a second SIP
message and processes it through the SDP parser. Fix this by changing clen to unsigned long to match the
return type of simple_strtoul(), and reject Content-Length values that exceed the remaining TCP payload
length. (CVE-2026-23457)

Solution

Update the linux library and its related packages to version 6.1.170-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-23457

Plugin Details

Severity: High

ID: 462110

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3.9

Percentile: 52.77

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 6.7

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

CVSS Score Source: CVE-2026-23457

CVSS v3

Risk Factor: High

Base Score: 8.6

Temporal Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 5/1/2026

Vulnerability Publication Date: 4/3/2026

Reference Information

CVE: CVE-2026-23457