SUSE update for ldb, samba

1) Resource management error

EUVDB-ID: #VU66202

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-3670

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

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

The vulnerability exists due to Samba AD DC LDAP does not honor the MaxQueryDuration option when handling LDAP requests. A remote user can execute heavy queries and perform a denial of service (DoS) attack.

Mitigation

Update the affected package ldb, samba to the latest version.

Vulnerable software versions

SUSE Linux Enterprise High Availability: 15-SP4

SUSE Linux Enterprise Module for Basesystem: 15-SP4

SUSE Linux Enterprise Desktop: 15-SP4

SUSE Linux Enterprise Server: 15-SP4

openSUSE Leap: 15.4

SUSE Linux Enterprise Server for SAP Applications: 15-SP4

SUSE Linux Enterprise High Performance Computing: 15-SP4

samba-winbind-libs-32bit-debuginfo: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-winbind-libs-32bit: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-libs-python3-32bit-debuginfo: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-libs-python3-32bit: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-libs-32bit-debuginfo: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-libs-32bit: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-devel-32bit: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-client-libs-32bit-debuginfo: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-client-libs-32bit: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-client-32bit-debuginfo: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-client-32bit: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-ad-dc-libs-32bit-debuginfo: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-ad-dc-libs-32bit: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

libsamba-policy0-python3-32bit-debuginfo: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

libsamba-policy0-python3-32bit: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-doc: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-ceph-debuginfo: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-ceph: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-winbind-libs-debuginfo: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-winbind-libs: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-winbind-debuginfo: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-winbind: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-tool: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-test-debuginfo: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-test: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-python3-debuginfo: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-python3: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-libs-python3-debuginfo: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-libs-python3: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-libs-debuginfo: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-libs: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-ldb-ldap-debuginfo: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-ldb-ldap: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-gpupdate: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-dsdb-modules-debuginfo: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-dsdb-modules: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-devel: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-debugsource: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-debuginfo: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-client-libs-debuginfo: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-client-libs: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-client-debuginfo: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-client: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-ad-dc-libs-debuginfo: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-ad-dc-libs: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-ad-dc-debuginfo: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba-ad-dc: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

samba: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

libsamba-policy0-python3-debuginfo: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

libsamba-policy0-python3: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

libsamba-policy-python3-devel: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

libsamba-policy-devel: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

ctdb-pcp-pmda-debuginfo: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

ctdb-pcp-pmda: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

ctdb-debuginfo: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

ctdb: before 4.15.7+git.376.dd43aca9ab2-150400.3.5.3

python3-ldb-32bit-debuginfo: before 2.4.2-150400.4.3.11

python3-ldb-32bit: before 2.4.2-150400.4.3.11

libldb2-32bit-debuginfo: before 2.4.2-150400.4.3.11

libldb2-32bit: before 2.4.2-150400.4.3.11

python3-ldb-devel: before 2.4.2-150400.4.3.11

python3-ldb-debuginfo: before 2.4.2-150400.4.3.11

python3-ldb: before 2.4.2-150400.4.3.11

libldb2-debuginfo: before 2.4.2-150400.4.3.11

libldb2: before 2.4.2-150400.4.3.11

libldb-devel: before 2.4.2-150400.4.3.11

ldb-tools-debuginfo: before 2.4.2-150400.4.3.11

ldb-tools: before 2.4.2-150400.4.3.11

ldb-debugsource: before 2.4.2-150400.4.3.11

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20222307-1/

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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