Detections
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Echo: krb5: security update to 1.20.1-2+deb12u2

high Tenable Self-Hosted Container Security Plugin ID 464867

Description

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

 - An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. There is a variable
 "dbentry->n_key_data" in kadmin/dbutil/dump.c that can store 16-bit data but unknowingly the developer has
 assigned a "u4" variable to it, which is for 32-bit data. An attacker can use this vulnerability to affect
 other artifacts of the database as we know that a Kerberos database dump file contains trusted data.
 (CVE-2018-5709)

Solution

Update the krb5 library and its related packages to version 1.20.1-2+deb12u2 or later.

See Also

https://advisory.echohq.com/cve/CVE-2018-5709

Plugin Details

Severity: High

ID: 464867

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2018-5709

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 9/15/2025

Vulnerability Publication Date: 1/16/2018

Reference Information

CVE: CVE-2018-5709