Echo: libmspack: security update to 0.11-2

medium Tenable Cloud Security Plugin ID 477735

Description

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

- libmspack through 0.11alpha contains an uninitialized pointer free vulnerability in kwajd_open() in
mspack/kwajd.c that frees unzeroed filename and extra pointers on header read errors. Attackers can supply
a truncated, empty, or wrong-signature KWAJ file to crash the process or obtain an arbitrary-free memory
corruption primitive. (CVE-2026-110602)

Solution

Update the libmspack library and its related packages to version 0.11-2 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-110602

Plugin Details

Severity: Medium

ID: 477735

Version: Revision 1.1

Type: Local

Published: 10/28/2026

Updated: 10/28/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.52

CVSS v2

Risk Factor: Medium

Base Score: 5.6

Temporal Score: 4.1

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

CVSS Score Source: CVE-2026-110602

CVSS v3

Risk Factor: Medium

Base Score: 6.3

Temporal Score: 5.5

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

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

CVSS v4

Risk Factor: Medium

Base Score: 5.8

Threat Score: 2

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/17/2026

Vulnerability Publication Date: 10/14/2026

Reference Information

CVE: CVE-2026-110602