SUSE update for samba

1) Out-of-bounds write

EUVDB-ID: #VU60186

Risk: High

CVSSv4.0: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/U:Amber]

CVE-ID: CVE-2021-44142

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing EA metadata while opening files in smbd within the VFS Samba module (vfs_fruit). A remote attacker with ability to write to file's extended attributes can trigger an out-of-bounds write and execute arbitrary code with root privileges.

Note, the vulnerability in vfs_fruit exists in the default configuration of the fruit VFS module using fruit:metadata=netatalk or fruit:resource=file.

Mitigation

Update the affected package samba to the latest version.

Vulnerable software versions

SUSE Linux Enterprise High Availability: 12-SP3 - 12-SP4

SUSE OpenStack Cloud Crowbar: 8 - 9

SUSE Linux Enterprise Server for SAP: 12-SP3 - 12-SP4

HPE Helion Openstack: 8

SUSE Linux Enterprise Server: 12-SP3-BCL - 12-SP4-LTSS

SUSE OpenStack Cloud: 8 - 9

ctdb-debuginfo: before 4.6.16+git.320.a2d80a7efef-3.70.1

ctdb: before 4.6.16+git.320.a2d80a7efef-3.70.1

samba-doc: before 4.6.16+git.320.a2d80a7efef-3.70.1

samba-winbind-debuginfo: before 4.6.16+git.320.a2d80a7efef-3.70.1

samba-winbind-debuginfo-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

samba-winbind: before 4.6.16+git.320.a2d80a7efef-3.70.1

samba-winbind-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

samba-libs-debuginfo: before 4.6.16+git.320.a2d80a7efef-3.70.1

samba-libs-debuginfo-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

samba-libs: before 4.6.16+git.320.a2d80a7efef-3.70.1

samba-libs-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

samba-debugsource: before 4.6.16+git.320.a2d80a7efef-3.70.1

samba-debuginfo: before 4.6.16+git.320.a2d80a7efef-3.70.1

samba-client-debuginfo: before 4.6.16+git.320.a2d80a7efef-3.70.1

samba-client-debuginfo-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

samba-client: before 4.6.16+git.320.a2d80a7efef-3.70.1

samba-client-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

samba: before 4.6.16+git.320.a2d80a7efef-3.70.1

libwbclient0-debuginfo: before 4.6.16+git.320.a2d80a7efef-3.70.1

libwbclient0-debuginfo-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libwbclient0: before 4.6.16+git.320.a2d80a7efef-3.70.1

libwbclient0-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libtevent-util0-debuginfo: before 4.6.16+git.320.a2d80a7efef-3.70.1

libtevent-util0-debuginfo-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libtevent-util0: before 4.6.16+git.320.a2d80a7efef-3.70.1

libtevent-util0-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsmbldap0-debuginfo: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsmbldap0-debuginfo-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsmbldap0: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsmbldap0-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsmbconf0-debuginfo: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsmbconf0-debuginfo-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsmbconf0: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsmbconf0-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsmbclient0-debuginfo: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsmbclient0-debuginfo-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsmbclient0: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsmbclient0-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsamdb0-debuginfo: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsamdb0-debuginfo-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsamdb0: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsamdb0-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsamba-util0-debuginfo: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsamba-util0-debuginfo-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsamba-util0: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsamba-util0-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsamba-passdb0-debuginfo: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsamba-passdb0-debuginfo-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsamba-passdb0: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsamba-passdb0-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsamba-hostconfig0-debuginfo: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsamba-hostconfig0-debuginfo-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsamba-hostconfig0: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsamba-hostconfig0-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsamba-errors0-debuginfo: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsamba-errors0-debuginfo-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsamba-errors0: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsamba-errors0-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsamba-credentials0-debuginfo: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsamba-credentials0-debuginfo-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsamba-credentials0: before 4.6.16+git.320.a2d80a7efef-3.70.1

libsamba-credentials0-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libnetapi0-debuginfo: before 4.6.16+git.320.a2d80a7efef-3.70.1

libnetapi0-debuginfo-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libnetapi0: before 4.6.16+git.320.a2d80a7efef-3.70.1

libnetapi0-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libndr0-debuginfo: before 4.6.16+git.320.a2d80a7efef-3.70.1

libndr0-debuginfo-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libndr0: before 4.6.16+git.320.a2d80a7efef-3.70.1

libndr0-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libndr-standard0-debuginfo: before 4.6.16+git.320.a2d80a7efef-3.70.1

libndr-standard0-debuginfo-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libndr-standard0: before 4.6.16+git.320.a2d80a7efef-3.70.1

libndr-standard0-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libndr-nbt0-debuginfo: before 4.6.16+git.320.a2d80a7efef-3.70.1

libndr-nbt0-debuginfo-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libndr-nbt0: before 4.6.16+git.320.a2d80a7efef-3.70.1

libndr-nbt0-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libndr-krb5pac0-debuginfo: before 4.6.16+git.320.a2d80a7efef-3.70.1

libndr-krb5pac0-debuginfo-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libndr-krb5pac0: before 4.6.16+git.320.a2d80a7efef-3.70.1

libndr-krb5pac0-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libdcerpc0-debuginfo: before 4.6.16+git.320.a2d80a7efef-3.70.1

libdcerpc0-debuginfo-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libdcerpc0: before 4.6.16+git.320.a2d80a7efef-3.70.1

libdcerpc0-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libdcerpc-binding0-debuginfo: before 4.6.16+git.320.a2d80a7efef-3.70.1

libdcerpc-binding0-debuginfo-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

libdcerpc-binding0: before 4.6.16+git.320.a2d80a7efef-3.70.1

libdcerpc-binding0-32bit: before 4.6.16+git.320.a2d80a7efef-3.70.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_high_availability:12-SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_availability:12-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_openstack_cloud_crowbar:8:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_openstack_cloud_crowbar:9:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap:12-SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap:12-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:hpe_helion_openstack:8:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server:12-SP3-BCL:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server:12-SP3-LTSS:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server:12-SP4-LTSS:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_openstack_cloud:8:*:*:*:*:*:*:*
• cpe:2.3:o:suse:ctdb-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:ctdb:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:samba-doc:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:samba-winbind-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:samba-winbind-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:samba-winbind:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:samba-winbind-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:samba-libs-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:samba-libs-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:samba-libs:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:samba-libs-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:samba-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:samba-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:samba-client-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:samba-client-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:samba-client:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:samba-client-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:samba:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libwbclient0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libwbclient0-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libwbclient0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libwbclient0-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libtevent-util0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libtevent-util0-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libtevent-util0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libtevent-util0-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsmbldap0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsmbldap0-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsmbldap0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsmbldap0-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsmbconf0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsmbconf0-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsmbconf0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsmbconf0-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsmbclient0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsmbclient0-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsmbclient0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsmbclient0-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsamdb0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsamdb0-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsamdb0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsamdb0-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsamba-util0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsamba-util0-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsamba-util0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsamba-util0-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsamba-passdb0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsamba-passdb0-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsamba-passdb0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsamba-passdb0-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsamba-hostconfig0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsamba-hostconfig0-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsamba-hostconfig0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsamba-hostconfig0-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsamba-errors0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsamba-errors0-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsamba-errors0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsamba-errors0-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsamba-credentials0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsamba-credentials0-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsamba-credentials0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libsamba-credentials0-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libnetapi0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libnetapi0-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libnetapi0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libnetapi0-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libndr0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libndr0-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libndr0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libndr0-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libndr-standard0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libndr-standard0-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libndr-standard0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libndr-standard0-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libndr-nbt0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libndr-nbt0-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libndr-nbt0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libndr-nbt0-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libndr-krb5pac0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libndr-krb5pac0-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libndr-krb5pac0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libndr-krb5pac0-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libdcerpc0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libdcerpc0-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libdcerpc0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libdcerpc0-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libdcerpc-binding0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libdcerpc-binding0-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libdcerpc-binding0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libdcerpc-binding0-32bit:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2022/suse-su-20220271-1/

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. However, proof of concept for this vulnerability is available.