SUSE update for 389-ds

Published: 2022-06-20

Risk	Medium
Patch available	YES
Number of vulnerabilities	3
CVE-ID	CVE-2021-3652 CVE-2021-4091 CVE-2022-1949
CWE-ID	CWE-287 CWE-416 CWE-863
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	SUSE Linux Enterprise Server for SAP Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing Operating systems & Components / Operating system SUSE Linux Enterprise Server Operating systems & Components / Operating system libsvrcore0-debuginfo Operating systems & Components / Operating system package or component libsvrcore0 Operating systems & Components / Operating system package or component 389-ds-devel Operating systems & Components / Operating system package or component 389-ds-debugsource Operating systems & Components / Operating system package or component 389-ds-debuginfo Operating systems & Components / Operating system package or component 389-ds Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Improper Authentication

EUVDB-ID: #VU55334

Risk: Medium

CVSSv3.1: 4.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-3652

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in the way the asterisk character is processed by the LDAP server when importing password hashes from /etc/shadow for disabled accounts. As a result of the flaw, if an LDAP admin imports such an account from a NIS or /etc/shadow database into Directory Server, any password will be valid for that account.

Mitigation

Update the affected package 389-ds to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP: 15

SUSE Linux Enterprise High Performance Computing: 15-ESPOS - 15-LTSS

SUSE Linux Enterprise Server: 15-LTSS

libsvrcore0-debuginfo: before 1.4.0.31~git15.8b9843b0b-150000.4.27.1

libsvrcore0: before 1.4.0.31~git15.8b9843b0b-150000.4.27.1

389-ds-devel: before 1.4.0.31~git15.8b9843b0b-150000.4.27.1

389-ds-debugsource: before 1.4.0.31~git15.8b9843b0b-150000.4.27.1

389-ds-debuginfo: before 1.4.0.31~git15.8b9843b0b-150000.4.27.1

389-ds: before 1.4.0.31~git15.8b9843b0b-150000.4.27.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20222109-1/

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.

2) Use-after-free

EUVDB-ID: #VU60867

Risk: Medium

CVSSv3.1: 5 [CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-4091

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error when processing virtual attributes context in persistent searches. A remote user can send specially crafted search requests to the directory server, trigger a use-after-free error and crash the server.

Mitigation

Update the affected package 389-ds to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP: 15

SUSE Linux Enterprise High Performance Computing: 15-ESPOS - 15-LTSS

SUSE Linux Enterprise Server: 15-LTSS

libsvrcore0-debuginfo: before 1.4.0.31~git15.8b9843b0b-150000.4.27.1

libsvrcore0: before 1.4.0.31~git15.8b9843b0b-150000.4.27.1

389-ds-devel: before 1.4.0.31~git15.8b9843b0b-150000.4.27.1

389-ds-debugsource: before 1.4.0.31~git15.8b9843b0b-150000.4.27.1

389-ds-debuginfo: before 1.4.0.31~git15.8b9843b0b-150000.4.27.1

389-ds: before 1.4.0.31~git15.8b9843b0b-150000.4.27.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20222109-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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

3) Incorrect authorization

EUVDB-ID: #VU64440

Risk: Medium

CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-1949

CWE-ID: CWE-863 - Incorrect Authorization

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to incorrect authorization in the 389-ds-base package where some LDAP queries can cause performance issues. A remote attacker can send a non-optimal search that causes serious performance issues within the directory server.

Mitigation

Update the affected package 389-ds to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP: 15

SUSE Linux Enterprise High Performance Computing: 15-ESPOS - 15-LTSS

SUSE Linux Enterprise Server: 15-LTSS

libsvrcore0-debuginfo: before 1.4.0.31~git15.8b9843b0b-150000.4.27.1

libsvrcore0: before 1.4.0.31~git15.8b9843b0b-150000.4.27.1

389-ds-devel: before 1.4.0.31~git15.8b9843b0b-150000.4.27.1

389-ds-debugsource: before 1.4.0.31~git15.8b9843b0b-150000.4.27.1

389-ds-debuginfo: before 1.4.0.31~git15.8b9843b0b-150000.4.27.1

389-ds: before 1.4.0.31~git15.8b9843b0b-150000.4.27.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20222109-1/

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.