NULL pointer dereference in 389-ds-base



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-2850
CWE-ID CWE-476
Exploitation vector Network
Public exploit N/A
Vulnerable software
 389-ds-base
Server applications / Directory software, identity management

Vendor 389 Directory Server Project

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) NULL pointer dereference

EUVDB-ID: #VU66990

Risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-2850

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to a NULL pointer dereference error within the sync_create_state_control() function when running a sync_repl client. A remote authenticated user can pass a malformed cookie in a query and perform a denial of service (DoS) attack.

Note, the vulnerability exists due to incomplete fix for #VU54107 (CVE-2021-3514).

Mitigation

Install updates from vendor's website.

Vulnerable software versions

389-ds-base: 1.4.3.1 - 1.4.4.19

CPE2.3 External links

https://bugzilla.redhat.com/show_bug.cgi?id=1952907
https://bugzilla.suse.com/show_bug.cgi?id=1202470
https://github.com/389ds/389-ds-base/issues/4711


Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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



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