openEuler 20.03 LTS update for openldap-2.4.49-2

1) Improper Certificate Validation

EUVDB-ID: #VU98558

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-15719

CWE-ID: CWE-295 - Improper Certificate Validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to improper certificate validation in libldap. A remote attacker can perform MitM attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS

openldap-servers: before 2.4.49-4

openldap-help: before 2.4.49-4

openldap-devel: before 2.4.49-4

openldap-debugsource: before 2.4.49-4

openldap-debuginfo: before 2.4.49-4

openldap-clients: before 2.4.49-4

openldap: before 2.4.49-4

CPE2.3

• cpe:2.3:o:openeuler:openeuler:20.03:LTS:*:*:*:*:*:*
• cpe:2.3:a:openeuler:openldap-servers:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:openldap-help:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:openldap-devel:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:openldap-debugsource:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:openldap-debuginfo:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:openldap-clients:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:openldap:*:*:*:*:*:openeuler:*:*

External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2020-1052

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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