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Echo: linux: security update to 6.1.170-1

medium Tenable Cloud Security Plugin ID 455364

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: tls: Purge async_hold in
 tls_decrypt_async_wait() The async_hold queue pins encrypted input skbs while the AEAD engine references
 their scatterlist data. Once tls_decrypt_async_wait() returns, every AEAD operation has completed and the
 engine no longer references those skbs, so they can be freed unconditionally. A subsequent patch adds
 batch async decryption to tls_sw_read_sock(), introducing a new call site that must drain pending AEAD
 operations and release held skbs. Move __skb_queue_purge(&ctx->async_hold) into tls_decrypt_async_wait()
 so the purge is centralized and every caller -- recvmsg's drain path, the -EBUSY fallback in
 tls_do_decryption(), and the new read_sock batch path -- releases held skbs on synchronization without
 each site managing the purge independently. This fixes a leak when tls_strp_msg_hold() fails part-way
 through, after having added some cloned skbs to the async_hold queue. tls_decrypt_sg() will then call
 tls_decrypt_async_wait() to process all pending decrypts, and drop back to synchronous mode, but
 tls_sw_recvmsg() only flushes the async_hold queue when one record has been processed in "fully-async"
 mode, which may not be the case here. [[email protected]: added leak comment] (CVE-2026-23414)

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-2026-23414

Plugin Details

Severity: Medium

ID: 455364

Version: Revision 1.1

Type: Local

Published: 10/1/2026

Updated: 10/1/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.66

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-2026-23414

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

Patch Publication Date: 5/1/2026

Vulnerability Publication Date: 4/2/2026

Reference Information

CVE: CVE-2026-23414