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Amazon Linux 2 : krb5 (ALAS-2024-2595)

critical Nessus Plugin ID 202990

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Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2024-2595 advisory.

 krb5: GSS message token handling (CVE-2024-37370)

 In MIT Kerberos 5 (aka krb5) before 1.21.3, an attacker can cause invalid memory reads during GSS message token handling by sending message tokens with invalid length fields. (CVE-2024-37371)

Tenable has extracted the preceding description block directly from the tested product security advisory.

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

Solution

Run 'yum update krb5' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2024-2595.html

https://alas.aws.amazon.com/cve/html/CVE-2024-37370.html

https://alas.aws.amazon.com/cve/html/CVE-2024-37371.html

https://alas.aws.amazon.com/faqs.html

Plugin Details

Severity: Critical

ID: 202990

File Name: al2_ALAS-2024-2595.nasl

Version: 1.2

Type: local

Agent: unix

Published: 7/23/2024

Updated: 8/28/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7

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

CVSS Score Source: CVE-2024-37371

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:krb5-pkinit, p-cpe:/a:amazon:linux:krb5-devel, p-cpe:/a:amazon:linux:krb5-debuginfo, p-cpe:/a:amazon:linux:libkadm5, p-cpe:/a:amazon:linux:krb5-workstation, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:krb5-server, p-cpe:/a:amazon:linux:krb5-server-ldap, p-cpe:/a:amazon:linux:krb5-libs

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/18/2024

Vulnerability Publication Date: 6/28/2024

Reference Information

CVE: CVE-2024-37370, CVE-2024-37371