SUSE SLED15 / SLES15 Security Update : ldb, samba (SUSE-SU-2020:1948-1)

high Nessus Plugin ID 138760

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Synopsis

The remote SUSE host is missing one or more security updates.

Description

This update for ldb, samba fixes the following issues :

Changes in samba: Update to samba 4.11.11

+ CVE-2020-10730: NULL de-reference in AD DC LDAP server when ASQ and VLV combined; (bso#14364); (bsc#1173159]

+ CVE-2020-10745: invalid DNS or NBT queries containing dots use several seconds of CPU each; (bso#14378);
(bsc#1173160).

+ CVE-2020-10760: Use-after-free in AD DC Global Catalog LDAP server with paged_result or VLV; (bso#14402);
(bsc#1173161)

+ CVE-2020-14303: Endless loop from empty UDP packet sent to AD DC nbt_server; (bso#14417); (bsc#1173359).

Update to samba 4.11.10

+ Fix segfault when using SMBC_opendir_ctx() routine for share folder that contains incorrect symbols in any file name; (bso#14374).

+ vfs_shadow_copy2 doesn't fail case looking in snapdirseverywhere mode; (bso#14350)

+ ldb_ldap: Fix off-by-one increment in lldb_add_msg_attr;
(bso#14413).

+ Malicous SMB1 server can crash libsmbclient; (bso#14366)

+ winbindd: Fix a use-after-free when winbind clients exit; (bso#14382)

+ ldb: Bump version to 2.0.11, LMDB databases can grow without bounds. (bso#14330)

Update to samba 4.11.9

+ nmblib: Avoid undefined behaviour in handle_name_ptrs();
(bso#14242).

+ 'samba-tool group' commands do not handle group names with special chars correctly; (bso#14296).

+ smbd: avoid calling vfs_file_id_from_sbuf() if statinfo is not valid; (bso#14237).

+ Missing check for DMAPI offline status in async DOS attributes; (bso#14293).

+ smbd: Ignore set NTACL requests which contain S-1-5-88 NFS ACEs; (bso#14307).

+ vfs_recycle: Prevent flooding the log if we're called on non-existant paths; (bso#14316)

+ smbd mistakenly updates a file's write-time on close;
(bso#14320).

+ RPC handles cannot be differentiated in source3 RPC server; (bso#14359).

+ librpc: Fix IDL for svcctl_ChangeServiceConfigW;
(bso#14313).

+ nsswitch: Fix use-after-free causing segfault in
_pam_delete_cred; (bso#14327).

+ Fix fruit:time machine max size on arm; (bso#13622)

+ CTDB recovery corner cases can cause record resurrection and node banning; (bso#14294).

+ ctdb: Fix a memleak; (bso#14348).

+ libsmb: Don't try to find posix stat info in SMBC_getatr().

+ ctdb-tcp: Move free of inbound queue to TCP restart;
(bso#14295); (bsc#1162680).

+ s3/librpc/crypto: Fix double free with unresolved credential cache; (bso#14344); (bsc#1169095)

+ s3:libads: Fix ads_get_upn(); (bso#14336).

+ CTDB recovery corner cases can cause record resurrection and node banning; (bso#14294)

+ Starting ctdb node that was powered off hard before results in recovery loop; (bso#14295); (bsc#1162680).

+ ctdb-recoverd: Avoid dereferencing NULL rec->nodemap;
(bso#14324)

Update to samba 4.11.8

+ CVE-2020-10700: Use-after-free in Samba AD DC LDAP Server with ASQ; (bso#14331); (bsc#1169850);

+ CVE-2020-10704: LDAP Denial of Service (stack overflow) in Samba AD DC; (bso#14334); (bsc#1169851);

Update to samba 4.11.7

+ s3: lib: nmblib. Clean up and harden nmb packet processing; (bso#14239).

+ s3: VFS: full_audit. Use system session_info if called from a temporary share definition; (bso#14283)

+ dsdb: Correctly handle memory in objectclass_attrs;
(bso#14258).

+ ldb: version 2.0.9, Samba 4.11 and later give incorrect results for SCOPE_ONE searches; (bso#14270)

+ auth: Fix CIDs 1458418 and 1458420 NULL pointer dereferences; (bso#14247).

+ smbd: Handle EINTR from open(2) properly; (bso#14285)

+ winbind member (source3) fails local SAM auth with empty domain name; (bso#14247)

+ winbindd: Handling missing idmap in getgrgid();
(bso#14265).

+ lib:util: Log mkdir error on correct debug levels;
(bso#14253).

+ wafsamba: Do not use 'rU' as the 'U' is deprecated in Python 3.9; (bso#14266).

+ ctdb-tcp: Make error handling for outbound connection consistent; (bso#14274).

Update to samba 4.11.6

+ pygpo: Use correct method flags; (bso#14209).

+ vfs_ceph_snapshots: Fix root relative path handling;
(bso#14216); (bsc#1141320).

+ Avoiding bad call flags with python 3.8, using METH_NOARGS instead of zero; (bso#14209).

+ source4/utils/oLschema2ldif: Include stdint.h before cmocka.h; (bso#14218).

+ docs-xml/winbindnssinfo: Clarify interaction with idmap_ad etc; (bso#14122).

+ smbd: Fix the build with clang; (bso#14251).

+ upgradedns: Ensure lmdb lock files linked; (bso#14199).

+ s3: VFS: glusterfs: Reset nlinks for symlink entries during readdir; (bso#14182).

+ smbc_stat() doesn't return the correct st_mode and also the uid/gid is not filled (SMBv1) file; (bso#14101).

+ librpc: Fix string length checking in ndr_pull_charset_to_null(); (bso#14219).

+ ctdb-scripts: Strip square brackets when gathering connection info; (bso#14227).

Add libnetapi-devel to baselibs conf, for wine usage; (bsc#1172307);

Installing: samba - samba-ad-dc.service does not exist and unit not found; (bsc#1171437);

Fix samba_winbind package is installing python3-base without python3 package; (bsc#1169521);

Changes in ldb: Update to version 2.0.12

+ CVE-2020-10730: NULL de-reference in AD DC LDAP server when ASQ and VLV combined; (bso#14364); (bsc#1173159).

+ ldb_ldap: fix off-by-one increment in lldb_add_msg_attr;
(bso#14413).

+ lib/ldb: add unit test for ldb_ldap internal code.

Update to version 2.0.11

+ lib ldb: lmdb init var before calling mdb_reader_check.

+ lib ldb: lmdb clear stale readers on write txn start;
(bso#14330).

+ ldb tests: Confirm lmdb free list handling

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or 'zypper patch'.

Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Module for Python2 15-SP2 :

zypper in -t patch SUSE-SLE-Module-Python2-15-SP2-2020-1948=1

SUSE Linux Enterprise Module for Basesystem 15-SP2 :

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP2-2020-1948=1

SUSE Linux Enterprise High Availability 15-SP2 :

zypper in -t patch SUSE-SLE-Product-HA-15-SP2-2020-1948=1

Plugin Details

Severity: High

ID: 138760

File Name: suse_SU-2020-1948-1.nasl

Version: 1.4

Type: local

Agent: unix

Family: SuSE Local Security Checks

Published: 7/20/2020

Updated: 2/29/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2020-10745

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS Score Source: CVE-2020-14303

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:libsmbldap2-debuginfo, p-cpe:/a:novell:suse_linux:libsamba-policy0-python3, p-cpe:/a:novell:suse_linux:libndr-standard0-32bit-debuginfo, p-cpe:/a:novell:suse_linux:libtevent-util0-32bit-debuginfo, p-cpe:/a:novell:suse_linux:libsmbldap2-32bit-debuginfo, p-cpe:/a:novell:suse_linux:libnetapi0, p-cpe:/a:novell:suse_linux:samba-client-debuginfo, p-cpe:/a:novell:suse_linux:libdcerpc-samr0, p-cpe:/a:novell:suse_linux:libsamba-errors0, p-cpe:/a:novell:suse_linux:libsamba-errors0-debuginfo, p-cpe:/a:novell:suse_linux:ldb-tools, p-cpe:/a:novell:suse_linux:libndr0-32bit-debuginfo, p-cpe:/a:novell:suse_linux:libndr-nbt-devel, p-cpe:/a:novell:suse_linux:libsmbclient0-debuginfo, p-cpe:/a:novell:suse_linux:samba-python3-debuginfo, p-cpe:/a:novell:suse_linux:samba-libs, p-cpe:/a:novell:suse_linux:libndr-standard0, p-cpe:/a:novell:suse_linux:libndr-standard0-debuginfo, p-cpe:/a:novell:suse_linux:libwbclient0-debuginfo, p-cpe:/a:novell:suse_linux:libsamba-passdb0-32bit-debuginfo, p-cpe:/a:novell:suse_linux:libdcerpc0-32bit-debuginfo, p-cpe:/a:novell:suse_linux:libsamba-util-devel, p-cpe:/a:novell:suse_linux:libsmbconf0-debuginfo, p-cpe:/a:novell:suse_linux:libndr-krb5pac0-debuginfo, p-cpe:/a:novell:suse_linux:libldb2-32bit-debuginfo, p-cpe:/a:novell:suse_linux:libsamba-util0, p-cpe:/a:novell:suse_linux:libsmbconf-devel, p-cpe:/a:novell:suse_linux:libsamba-credentials0-debuginfo, p-cpe:/a:novell:suse_linux:libtevent-util0-debuginfo, p-cpe:/a:novell:suse_linux:libdcerpc-samr0-debuginfo, p-cpe:/a:novell:suse_linux:libsamba-errors0-32bit-debuginfo, p-cpe:/a:novell:suse_linux:libsmbclient-devel, p-cpe:/a:novell:suse_linux:samba-ceph, p-cpe:/a:novell:suse_linux:libwbclient0-32bit-debuginfo, p-cpe:/a:novell:suse_linux:samba-libs-python3-debuginfo, p-cpe:/a:novell:suse_linux:libsamba-credentials0, p-cpe:/a:novell:suse_linux:samba-winbind-32bit-debuginfo, p-cpe:/a:novell:suse_linux:libsamba-hostconfig0-32bit-debuginfo, p-cpe:/a:novell:suse_linux:libsamba-credentials0-32bit-debuginfo, p-cpe:/a:novell:suse_linux:libdcerpc0, p-cpe:/a:novell:suse_linux:libsamdb0-32bit-debuginfo, p-cpe:/a:novell:suse_linux:libsamba-policy-python3-devel, p-cpe:/a:novell:suse_linux:libsmbconf0-32bit-debuginfo, p-cpe:/a:novell:suse_linux:libldb2-debuginfo, p-cpe:/a:novell:suse_linux:libsamba-util0-debuginfo, p-cpe:/a:novell:suse_linux:samba-winbind, p-cpe:/a:novell:suse_linux:libsamba-hostconfig0-debuginfo, p-cpe:/a:novell:suse_linux:libsamba-errors-devel, p-cpe:/a:novell:suse_linux:libnetapi0-32bit-debuginfo, p-cpe:/a:novell:suse_linux:libsamba-credentials-devel, p-cpe:/a:novell:suse_linux:samba-client, p-cpe:/a:novell:suse_linux:samba-libs-32bit-debuginfo, p-cpe:/a:novell:suse_linux:libsamba-hostconfig-devel, p-cpe:/a:novell:suse_linux:libsamba-passdb0, p-cpe:/a:novell:suse_linux:libsamdb-devel, p-cpe:/a:novell:suse_linux:libndr-nbt0-debuginfo, p-cpe:/a:novell:suse_linux:libsamba-policy-devel, p-cpe:/a:novell:suse_linux:libndr-nbt0, p-cpe:/a:novell:suse_linux:libndr-standard-devel, p-cpe:/a:novell:suse_linux:libsamba-hostconfig0, p-cpe:/a:novell:suse_linux:libwbclient0, p-cpe:/a:novell:suse_linux:libndr-nbt0-32bit-debuginfo, p-cpe:/a:novell:suse_linux:libsamba-passdb-devel, p-cpe:/a:novell:suse_linux:libsamba-util0-32bit-debuginfo, p-cpe:/a:novell:suse_linux:libdcerpc0-debuginfo, p-cpe:/a:novell:suse_linux:libdcerpc-binding0, p-cpe:/a:novell:suse_linux:libsmbldap-devel, p-cpe:/a:novell:suse_linux:samba, p-cpe:/a:novell:suse_linux:libldb2, p-cpe:/a:novell:suse_linux:libdcerpc-binding0-debuginfo, p-cpe:/a:novell:suse_linux:python3-ldb-devel, p-cpe:/a:novell:suse_linux:samba-dsdb-modules-debuginfo, p-cpe:/a:novell:suse_linux:ldb-tools-debuginfo, p-cpe:/a:novell:suse_linux:libndr-krb5pac0-32bit-debuginfo, p-cpe:/a:novell:suse_linux:samba-ad-dc, p-cpe:/a:novell:suse_linux:python3-ldb-debuginfo, p-cpe:/a:novell:suse_linux:libndr-devel, p-cpe:/a:novell:suse_linux:samba-python3, cpe:/o:novell:suse_linux:15, p-cpe:/a:novell:suse_linux:libnetapi0-debuginfo, p-cpe:/a:novell:suse_linux:libsamba-passdb0-debuginfo, p-cpe:/a:novell:suse_linux:libnetapi-devel, p-cpe:/a:novell:suse_linux:samba-ad-dc-debuginfo, p-cpe:/a:novell:suse_linux:python3-ldb, p-cpe:/a:novell:suse_linux:libtevent-util0, p-cpe:/a:novell:suse_linux:libdcerpc-samr-devel, p-cpe:/a:novell:suse_linux:libndr0-debuginfo, p-cpe:/a:novell:suse_linux:libsmbldap2, p-cpe:/a:novell:suse_linux:libtevent-util-devel, p-cpe:/a:novell:suse_linux:samba-core-devel, p-cpe:/a:novell:suse_linux:samba-libs-debuginfo, p-cpe:/a:novell:suse_linux:libndr-krb5pac0, p-cpe:/a:novell:suse_linux:samba-debugsource, p-cpe:/a:novell:suse_linux:libndr-krb5pac-devel, p-cpe:/a:novell:suse_linux:ldb-debugsource, p-cpe:/a:novell:suse_linux:samba-winbind-debuginfo, p-cpe:/a:novell:suse_linux:libsamdb0-debuginfo, p-cpe:/a:novell:suse_linux:samba-ceph-debuginfo, p-cpe:/a:novell:suse_linux:libsmbclient0, p-cpe:/a:novell:suse_linux:libsamdb0, p-cpe:/a:novell:suse_linux:libdcerpc-binding0-32bit-debuginfo, p-cpe:/a:novell:suse_linux:libndr0, p-cpe:/a:novell:suse_linux:libldb-devel, p-cpe:/a:novell:suse_linux:libsamba-policy0-python3-debuginfo, p-cpe:/a:novell:suse_linux:samba-libs-python3, p-cpe:/a:novell:suse_linux:libdcerpc-devel, p-cpe:/a:novell:suse_linux:samba-dsdb-modules, p-cpe:/a:novell:suse_linux:libsmbconf0, p-cpe:/a:novell:suse_linux:libwbclient-devel, p-cpe:/a:novell:suse_linux:samba-debuginfo

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 7/17/2020

Vulnerability Publication Date: 5/4/2020

Reference Information

CVE: CVE-2020-10700, CVE-2020-10704, CVE-2020-10730, CVE-2020-10745, CVE-2020-10760, CVE-2020-14303

Detections

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