Fedora 25 : krb5 (2017-56e23bc2b5)

critical Nessus Plugin ID 103544
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote Fedora host is missing a security update.

Description

- Prevent applications from accidentally implementing CVE-2017-11462 (double free if sec_context is copied).

- fc26+: Add ccselect hostrealm module for ccache selection based on service hostname.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected krb5 package.

See Also

https://bodhi.fedoraproject.org/updates/FEDORA-2017-56e23bc2b5

Plugin Details

Severity: Critical

ID: 103544

File Name: fedora_2017-56e23bc2b5.nasl

Version: 3.5

Type: local

Agent: unix

Published: 9/29/2017

Updated: 1/6/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

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

CVSS v3

Risk Factor: Critical

Base Score: 9.8

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

Vulnerability Information

CPE: p-cpe:/a:fedoraproject:fedora:krb5, cpe:/o:fedoraproject:fedora:25

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list

Patch Publication Date: 9/22/2017

Vulnerability Publication Date: 9/13/2017

Reference Information

CVE: CVE-2017-11462