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Echo: coreutils: security update to 9.7-3+e4

medium Tenable Cloud Security Plugin ID 462509

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - GNU coreutils uniq is vulnerable to an out‑of‑bounds read due to incorrect handling of multibyte input
 when the -w (--check-chars) option is used. The find_field() function miscalculates the byte length of
 characters by repeatedly processing a fixed pointer instead of advancing through the input, resulting in
 an inflated length value. This incorrect length is later used in a memcmp operation, causing reads beyond
 the allocated buffer when processing crafted multibyte input. When running GNU coreutils uniq with
 attacker-provided arguments, this behavior leads to a crash and potential adjacent heap memory exposure.
 This issue has been fixed in the commit d64e35a8a4c0e4608321433e0d84d917e4e36371. (CVE-2026-56391)

Solution

Update the coreutils library and its related packages to version 9.7-3+e4 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-56391

Plugin Details

Severity: Medium

ID: 462509

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3.5

Percentile: 51.64

CVSS v2

Risk Factor: Medium

Base Score: 5.6

Temporal Score: 4.1

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

CVSS Score Source: CVE-2026-56391

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

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

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

CVSS v4

Risk Factor: Medium

Base Score: 4.6

Threat Score: 1

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 7/25/2026

Vulnerability Publication Date: 7/24/2026

Reference Information

CVE: CVE-2026-56391