Detections
Analytics

Echo: c-ares-1.13.0: security update to 1.13.0+e1c-ares-1.16.0: security update to 1.16.0+e1c-ares-1.7.4: security update to 1.7.4+e1

medium Tenable Self-Hosted Container Security Plugin ID 476241

Description

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

 - c-ares is an asynchronous resolver library. ares_inet_net_pton() is vulnerable to a buffer underflow for
 certain ipv6 addresses, in particular "0::00:00:00/2" was found to cause an issue. C-ares only uses this
 function internally for configuration purposes which would require an administrator to configure such an
 address via ares_set_sortlist(). However, users may externally use ares_inet_net_pton() for other purposes
 and thus be vulnerable to more severe issues. This issue has been fixed in 1.19.1. (CVE-2023-31130)

Solution

Update the c-ares-1.13.0 library and its related packages to version 1.13.0+e1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2023-31130

Plugin Details

Severity: Medium

ID: 476241

Version: Revision 1.1

Type: Local

Published: 10/20/2026

Updated: 10/20/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.79

CVSS v2

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 4.4

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

CVSS Score Source: CVE-2023-31130

CVSS v3

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 5.6

Vector: CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/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: 10/20/2026

Vulnerability Publication Date: 8/12/2021

Reference Information

CVE: CVE-2023-31130