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Echo: linux: security update to 6.1.176-1

high Tenable Self-Hosted Container Security Plugin ID 461851

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: xfrm: espintcp: do not reuse an in-
 progress partial send espintcp keeps a single in-flight transmit in ctx->partial. Before building a new
 sk_msg, espintcp_sendmsg() first tries to flush that state through espintcp_push_msgs(). For blocking
 callers, espintcp_push_msgs() may return success even when the previous partial send is still pending.
 espintcp_sendmsg() would then reinitialize emsg->skmsg and reuse ctx->partial while the old transfer still
 owns that state. Do not rebuild the send message when ctx->partial is still in progress. If
 espintcp_push_msgs() returns with emsg->len still set, fail the new send instead of overwriting the live
 partial state. This is a memory-safety fix: reusing the live partial-send state can leave a stale offset
 attached to a new sk_msg and lead to an out-of- bounds read in the send path. tcp_sendmsg_locked() already
 handles waiting for send buffer memory, so the fix here is just to preserve espintcp's one-message-at-a-
 time transmit state. (CVE-2026-52935)

Solution

Update the linux library and its related packages to version 6.1.176-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-52935

Plugin Details

Severity: High

ID: 461851

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.27

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2026-52935

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/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

Patch Publication Date: 6/25/2026

Vulnerability Publication Date: 6/24/2026

Reference Information

CVE: CVE-2026-52935