Denial of service in 389-ds-base
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-3514 |
| CWE-ID | CWE-476 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
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: #VU54107
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-2021-3514
CWE-ID:
CWE-476 - NULL Pointer Dereference
Exploit availability: No
DescriptionThe vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error when using a sync_repl client in 389-ds-base. A remote authenticated user can cause a NULL pointer dereference using a specially crafted query and perform a denial of service (DoS) attack.
MitigationInstall update from vendor's website.
Vulnerable software versions389-ds-base: 1.4.3.1 - 2.0.4
External linkshttp://github.com/389ds/389-ds-base/issues/4711
http://github.com/389ds/389-ds-base/commit/58dbf084a63e6dbbd999bf6a70475fad8255f26a
http://github.com/389ds/389-ds-base/commit/2e5b526012612d1d6ccace46398bee679a730271
http://bugzilla.redhat.com/show_bug.cgi?id=CVE-2021-3514
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.
