SUSE update for ldb

Published: 2021-03-24

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2020-27840 CVE-2021-20277
CWE-ID	CWE-122 CWE-125
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	SUSE Linux Enterprise Module for Python2 Operating systems & Components / Operating system SUSE Manager Proxy Operating systems & Components / Operating system SUSE Manager Retail Branch Server Operating systems & Components / Operating system SUSE Manager Server Operating systems & Components / Operating system SUSE Linux Enterprise Server for SAP Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing Operating systems & Components / Operating system SUSE Enterprise Storage Operating systems & Components / Operating system SUSE CaaS Platform Operating systems & Components / Operating system SUSE Linux Enterprise Server Operating systems & Components / Operating system libldb1-32bit-debuginfo Operating systems & Components / Operating system package or component libldb1-32bit Operating systems & Components / Operating system package or component python3-ldb-devel Operating systems & Components / Operating system package or component python3-ldb-debuginfo Operating systems & Components / Operating system package or component python3-ldb Operating systems & Components / Operating system package or component python-ldb-devel Operating systems & Components / Operating system package or component python-ldb-debuginfo Operating systems & Components / Operating system package or component python-ldb Operating systems & Components / Operating system package or component libldb1-debuginfo Operating systems & Components / Operating system package or component libldb1 Operating systems & Components / Operating system package or component libldb-devel Operating systems & Components / Operating system package or component ldb-tools-debuginfo Operating systems & Components / Operating system package or component ldb-tools Operating systems & Components / Operating system package or component ldb-debugsource Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Heap-based buffer overflow

EUVDB-ID: #VU51702

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-27840

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing DNs inside bind requests. A remote attacker can send specially crafted LDAP request to Samba AD DC LDAP server, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected package ldb to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Module for Python2: 15-SP2 - 15-SP3

SUSE Manager Proxy: 4.0

SUSE Manager Retail Branch Server: 4.0

SUSE Manager Server: 4.0

SUSE Linux Enterprise Server for SAP: 15-SP1

SUSE Linux Enterprise High Performance Computing: 15-SP1-ESPOS - 15-SP1-LTSS

SUSE Enterprise Storage: 6

SUSE CaaS Platform: 4.0

SUSE Linux Enterprise Server: 15-SP1-BCL - 15-SP1-LTSS

libldb1-32bit-debuginfo: before 1.4.6-3.8.1

libldb1-32bit: before 1.4.6-3.8.1

python3-ldb-devel: before 1.4.6-3.8.1

python3-ldb-debuginfo: before 1.4.6-3.8.1

python3-ldb: before 1.4.6-3.8.1

python-ldb-devel: before 1.4.6-3.8.1

python-ldb-debuginfo: before 1.4.6-3.8.1

python-ldb: before 1.4.6-3.8.1

libldb1-debuginfo: before 1.4.6-3.8.1

libldb1: before 1.4.6-3.8.1

libldb-devel: before 1.4.6-3.8.1

ldb-tools-debuginfo: before 1.4.6-3.8.1

ldb-tools: before 1.4.6-3.8.1

ldb-debugsource: before 1.4.6-3.8.1

External links

http://www.suse.com/support/update/announcement/2021/suse-su-20210944-1/

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) Out-of-bounds read

EUVDB-ID: #VU51701

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-2021-20277

CWE-ID: CWE-125 - Out-of-bounds read