Detections
Analytics

Echo: glibc: security update to 2.41-12+deb13u2+e2

medium Tenable Cloud Security Plugin ID 465372

Description

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

 - Calling gethostbyaddr or gethostbyaddr_r with a configured nsswitch.conf that specifies the library's DNS
 backend in the GNU C library version 2.34 to version 2.43 could result in an invalid DNS hostname being
 returned to the caller in violation of the DNS specification. (CVE-2026-4438)

Solution

Update the glibc library and its related packages to version 2.41-12+deb13u2+e2 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-4438

Plugin Details

Severity: Medium

ID: 465372

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 2.1

Percentile: 7.86

CVSS v2

Risk Factor: Medium

Base Score: 4.8

Temporal Score: 3.8

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

CVSS Score Source: CVE-2026-4438

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.9

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

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/21/2026

Vulnerability Publication Date: 3/20/2026

Reference Information

CVE: CVE-2026-4438