Detections
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Rocky Linux 8 : krb5 (RLSA-2021:3576)

high Nessus Plugin ID 157802

Synopsis

The remote Rocky Linux host is missing one or more security updates.

Description

The remote Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2021:3576 advisory.

 - The Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.18.5 and 1.19.x before 1.19.3 has a NULL pointer dereference in kdc/do_tgs_req.c via a FAST inner body that lacks a server field.
 (CVE-2021-37750)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://errata.rockylinux.org/RLSA-2021:3576

https://bugzilla.redhat.com/show_bug.cgi?id=1983720

https://bugzilla.redhat.com/show_bug.cgi?id=1996834

Plugin Details

Severity: High

ID: 157802

File Name: rocky_linux_RLSA-2021-3576.nasl

Version: 1.5

Type: local

Published: 2/9/2022

Updated: 11/7/2023

Supported Sensors: Continuous Assessment, 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-2021-36222

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:rocky:linux:libkadm5-debuginfo, p-cpe:/a:rocky:linux:krb5-server, p-cpe:/a:rocky:linux:krb5-workstation-debuginfo, p-cpe:/a:rocky:linux:krb5-devel-debuginfo, p-cpe:/a:rocky:linux:krb5-debuginfo, p-cpe:/a:rocky:linux:krb5-libs, p-cpe:/a:rocky:linux:krb5-libs-debuginfo, p-cpe:/a:rocky:linux:krb5-server-debuginfo, p-cpe:/a:rocky:linux:krb5-server-ldap-debuginfo, p-cpe:/a:rocky:linux:krb5-devel, p-cpe:/a:rocky:linux:krb5-pkinit, cpe:/o:rocky:linux:8, p-cpe:/a:rocky:linux:krb5-server-ldap, p-cpe:/a:rocky:linux:krb5-workstation, p-cpe:/a:rocky:linux:krb5-pkinit-debuginfo, p-cpe:/a:rocky:linux:krb5-debugsource, p-cpe:/a:rocky:linux:libkadm5

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/1/2021

Vulnerability Publication Date: 8/23/2021

Reference Information

CVE: CVE-2021-36222, CVE-2021-37750

IAVB: 2021-B-0054-S