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Echo: zfs-linux: security update to 2.3.2-2+e1

high Tenable Self-Hosted Container Security Plugin ID 458309

Description

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

 - On Linux, several OpenZFS ioctl authorization checks accept a capability held only within a user-created,
 unprivileged namespace as equivalent to real host privilege, allowing an unprivileged local user to
 perform operations that should require root. Affected operations include pool-administrative operations
 (eg create, import, destroy), pool event log access (zpool events) and fault injection (zinject).
 Exploiting the problem requires only that the local user is permitted to open /dev/zfs (governed by local
 device permissions) and that the kernel permits unprivileged user namespace creation. No prior access to
 the target pool or its underlying devices is needed. (CVE-2026-79619)

Solution

Update the zfs-linux library and its related packages to version 2.3.2-2+e1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-79619

Plugin Details

Severity: High

ID: 458309

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.25

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2026-79619

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

CVSS v4

Risk Factor: High

Base Score: 7.3

Threat Score: 4.4

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 8/27/2026

Vulnerability Publication Date: 8/26/2026

Reference Information

CVE: CVE-2026-79619