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Echo: libpcap: security update to 1.10.5-2+e3

medium Tenable Cloud Security Plugin ID 460965

Description

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

 - libpcap BPF interpreter detects neither reaching the end of the filter program buffer due to lack of a
 return instruction nor executing a jump instruction with an offset that translates to a pointer outside of
 the buffer. In particular uncommon use cases a crafted filter program can cause the interpreter to try
 reading the OS process memory in the 32GiB around the buffer on 64-bit architectures and in the entire
 address space on 32-bit architectures. (CVE-2026-31912)

Solution

Update the libpcap library and its related packages to version 1.10.5-2+e3 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-31912

Plugin Details

Severity: Medium

ID: 460965

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.6

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2026-31912

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 9/6/2026

Vulnerability Publication Date: 9/5/2026

Reference Information

CVE: CVE-2026-31912

IAVA: 2026-A-0971