Vulnerability identifier: #VU93312

Vulnerability risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-3657

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
389-ds-base
Server applications / Directory software, identity management

Vendor: 389 Directory Server Project

Description

The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input when parsing Kerberos AS-REQ packets. A remote user can send specially crafted query to the LDAP server and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

389-ds-base: 2.4.5, 2.3.0 - 2.3.7, 2.2.0 - 2.2.9, 2.1.0 - 2.1.8, 2.0.0 - 2.0.17

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External links
http://access.redhat.com/security/cve/CVE-2024-3657
http://bugzilla.redhat.com/show_bug.cgi?id=2274401
http://access.redhat.com/errata/RHSA-2024:3591
http://access.redhat.com/errata/RHSA-2024:3837

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.