Detections
Analytics

Echo: linux: security update to 6.1.176-1

high Tenable Cloud Security Plugin ID 459128

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: slip: bound decode() reads against the
 compressed packet length slhc_uncompress() parses a VJ-compressed TCP header by advancing a pointer
 through the packet via decode() and pull16(). Neither helper bounds-checks against isize, and decode()
 masks its return with & 0xffff so it can never return the -1 that callers test for -- those error paths
 are dead code. A short compressed frame whose change byte requests optional fields lets decode() read past
 the end of the packet. The over-read bytes are folded into the cached cstate and reflected into subsequent
 reconstructed packets. Make decode() and pull16() take the packet end pointer and return -1 when
 exhausted. Add a bounds check before the TCP-checksum read. The existing == -1 tests now do what they were
 always meant to. (CVE-2026-45843)

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-2026-45843

Plugin Details

Severity: High

ID: 459128

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3.5

Percentile: 51.96

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 6.3

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

CVSS Score Source: CVE-2026-45843

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.1

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 5/27/2026

Vulnerability Publication Date: 5/27/2026

Reference Information

CVE: CVE-2026-45843