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EulerOS Virtualization for ARM 64 3.0.2.0 : krb5 (EulerOS-SA-2021-1403)

high Nessus Plugin ID 147526

Synopsis

The remote EulerOS Virtualization for ARM 64 host is missing multiple security updates.

Description

According to the versions of the krb5 packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :

 - Kerberos is a network authentication system. The krb5-server package contains the programs that must be installed on a Kerberos 5 key distribution center (KDC). If you are installing a Kerberos 5 KDC, you need to install this package (in other words, most people should NOT install this package). Security Fix(es):MIT Kerberos 5 (aka krb5) before 1.17.2 and 1.18.x before 1.18.3 allows unbounded recursion via an ASN.1-encoded Kerberos message because the lib/krb5/asn.1/asn1_encode.c support for BER indefinite lengths lacks a recursion limit.(CVE-2020-28196)In MIT Kerberos 5 (aka krb5) 1.7 and later, an authenticated attacker can cause a KDC assertion failure by sending invalid S4U2Self or S4U2Proxy requests.(CVE-2017-11368)

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

Solution

Update the affected krb5 packages.

See Also

http://www.nessus.org/u?f16a3dba

Plugin Details

Severity: High

ID: 147526

File Name: EulerOS_SA-2021-1403.nasl

Version: 1.5

Type: local

Published: 3/10/2021

Updated: 1/11/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2020-28196

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:N/A:H

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

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:krb5-devel, p-cpe:/a:huawei:euleros:krb5-libs, p-cpe:/a:huawei:euleros:krb5-pkinit, p-cpe:/a:huawei:euleros:krb5-server, p-cpe:/a:huawei:euleros:krb5-workstation, cpe:/o:huawei:euleros:uvp:3.0.2.0

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/EulerOS/release, Host/EulerOS/rpm-list, Host/EulerOS/uvp_version

Exploit Ease: No known exploits are available

Patch Publication Date: 3/4/2021

Reference Information

CVE: CVE-2017-11368, CVE-2020-28196