Resource management error in Samba - CVE-2023-42670

Vulnerability identifier: #VU81867

CSH Severity: Medium

CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2023-42670

CWE-ID: CWE-399

Exploitation vector: Remote access

Exploit availability: No public exploit available

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

The vulnerability exists due to improper management of internal resources within the application when Samba RPC server is under load, which can lead to incorrect start of servers not built for the AD DC. A remote user can cause a high load to Samba RPC server and perform a denial of service (DoS) attack.

Samba
Debian Linux
Gentoo Linux
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Micro
Slackware Linux
Basesystem Module
openSUSE Leap
Ubuntu
openEuler
Anolis OS
Fedora
Security Event Manager (SEM)
VMware Tanzu Application Service for VMs
Isolation Segment
JD Edwards EnterpriseOne Tools
samba-dc-bind-dlz
samba-debugsource
samba-usershares
ctdb
python3-samba-dc
samba-devel
samba-debuginfo
samba-winbind-clients
libsmbclient
samba-winbind
samba-dc-provision
libwbclient-devel
samba-common
samba-winbind-krb5-locator
samba-winbind-modules
samba-help
samba
python3-samba-test
python3-samba
samba-dc
samba-client
samba-dc-libs
samba-pidl
samba-vfs-glusterfs
libsmbclient-devel
samba-libs
samba-client-libs
samba-test
samba-common-tools
samba-krb5-printing
libwbclient
samba-libs-python3
libsamba-policy0-python3-debuginfo
samba-ldb-ldap-debuginfo
ctdb-debuginfo
samba-libs-python3-debuginfo
samba-test-debuginfo
samba-tool
samba-client-libs-debuginfo
samba-winbind-debuginfo
samba-client-debuginfo
samba-client-64bit
libsamba-policy-python3-devel
samba-python3-debuginfo
ctdb-pcp-pmda
ctdb-pcp-pmda-debuginfo
samba-libs-debuginfo
samba-ldb-ldap
libsamba-policy-devel
libsamba-policy0-python3
samba-winbind-libs
samba-gpupdate
samba-python3
samba-libs-64bit
samba-client-64bit-debuginfo
samba-libs-python3-64bit-debuginfo
samba-libs-python3-64bit
samba-client-libs-64bit-debuginfo
samba-devel-64bit
libsamba-policy0-python3-64bit
samba-client-libs-64bit
libsamba-policy0-python3-64bit-debuginfo
samba-libs-64bit-debuginfo
samba-winbind-libs-64bit
samba-winbind-libs-64bit-debuginfo
samba-ceph
samba-ceph-debuginfo
samba-doc
samba-winbind-libs-32bit
samba-winbind-libs-debuginfo
samba-devel-32bit
samba-client-libs-32bit
samba-client-32bit
samba-client-libs-32bit-debuginfo
samba-libs-32bit
samba-libs-python3-32bit-debuginfo
libsamba-policy0-python3-32bit-debuginfo
samba-client-32bit-debuginfo
samba-winbind-libs-32bit-debuginfo
samba-libs-python3-32bit
samba-libs-32bit-debuginfo
libsamba-policy0-python3-32bit
python3-samba-devel
samba-common-libs
samba-dcerpc
samba-ldb-ldap-modules
samba-test-libs
samba-tools
libnetapi-devel
libnetapi
samba-vfs-iouring
net-fs/samba
samba (Ubuntu package)
samba (Debian package)
QuTS hero
QNAP QTS
Storage Scale

Install updates from vendor's website.

Samba - addressed in versions 4.17.12, 4.18.8, 4.19.1
Security Event Manager (SEM) - update to 2023.4.1
samba-dc-bind-dlz - update to 4.17.5-8
samba-debugsource - update to 4.17.5-8
samba-usershares - update to 4.17.5-8
ctdb - update to 4.17.5-8
python3-samba-dc - update to 4.17.5-8
samba-devel - update to 4.17.5-8
samba-debuginfo - update to 4.17.5-8
samba-winbind-clients - update to 4.17.5-8
libsmbclient - update to 4.17.5-8
samba-winbind - update to 4.17.5-8
samba-dc-provision - update to 4.17.5-8
libwbclient-devel - update to 4.17.5-8
samba-common - update to 4.17.5-8
samba-winbind-krb5-locator - update to 4.17.5-8
samba-winbind-modules - update to 4.17.5-8
samba-help - update to 4.17.5-8
samba - update to 4.17.5-8
python3-samba-test - update to 4.17.5-8
python3-samba - update to 4.17.5-8
samba-dc - update to 4.17.5-8
samba-client - update to 4.17.5-8
samba-dc-libs - update to 4.17.5-8
samba-pidl - update to 4.17.5-8
samba-vfs-glusterfs - update to 4.17.5-8
libsmbclient-devel - update to 4.17.5-8
samba-libs - update to 4.17.5-8
samba-client-libs - update to 4.17.5-8
samba-test - update to 4.17.5-8
samba-common-tools - update to 4.17.5-8
samba-krb5-printing - update to 4.17.5-8
libwbclient - update to 4.17.5-8
samba-libs-python3 - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
libsamba-policy0-python3-debuginfo - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-winbind - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-ldb-ldap-debuginfo - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
ctdb-debuginfo - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-libs-python3-debuginfo - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-test-debuginfo - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-tool - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
ctdb - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-client-libs - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-client-libs-debuginfo - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-debugsource - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-winbind-debuginfo - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-client-debuginfo - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-client-64bit - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
libsamba-policy-python3-devel - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-python3-debuginfo - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
ctdb-pcp-pmda - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
ctdb-pcp-pmda-debuginfo - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-client - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-libs-debuginfo - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-libs - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-debuginfo - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-ldb-ldap - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
libsamba-policy-devel - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
libsamba-policy0-python3 - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-devel - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-winbind-libs - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-gpupdate - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-python3 - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-libs-64bit - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-client-64bit-debuginfo - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-libs-python3-64bit-debuginfo - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-libs-python3-64bit - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-client-libs-64bit-debuginfo - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-devel-64bit - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
libsamba-policy0-python3-64bit - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-client-libs-64bit - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
libsamba-policy0-python3-64bit-debuginfo - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-libs-64bit-debuginfo - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-winbind-libs-64bit - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-winbind-libs-64bit-debuginfo - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-ceph - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-ceph-debuginfo - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-doc - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-winbind-libs-32bit - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-winbind-libs-debuginfo - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-test - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-devel-32bit - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-client-libs-32bit - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-client-32bit - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-client-libs-32bit-debuginfo - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-libs-32bit - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-libs-python3-32bit-debuginfo - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
libsamba-policy0-python3-32bit-debuginfo - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-client-32bit-debuginfo - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-winbind-libs-32bit-debuginfo - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-libs-python3-32bit - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba-libs-32bit-debuginfo - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
libsamba-policy0-python3-32bit - update to 4.17.9+git.421.abde31ca5c2-150500.3.11.1
samba - addressed in versions 4.17.12-1.fc37, 4.18.8-1.fc38, 4.19.1-1.fc39
python3-samba-test - update to 4.18.8-1
samba-client - update to 4.18.8-1
samba - update to 4.18.8-1
samba-dc-libs - update to 4.18.8-1
python3-samba-devel - update to 4.18.8-1
python3-samba-dc - update to 4.18.8-1
python3-samba - update to 4.18.8-1
samba-client-libs - update to 4.18.8-1
samba-common-libs - update to 4.18.8-1
samba-common-tools - update to 4.18.8-1
samba-dc - update to 4.18.8-1
samba-dc-bind-dlz - update to 4.18.8-1
samba-vfs-glusterfs - update to 4.18.8-1
samba-dcerpc - update to 4.18.8-1
samba-devel - update to 4.18.8-1
samba-gpupdate - update to 4.18.8-1
samba-krb5-printing - update to 4.18.8-1
samba-ldb-ldap-modules - update to 4.18.8-1
samba-libs - update to 4.18.8-1
samba-test - update to 4.18.8-1
samba-test-libs - update to 4.18.8-1
samba-tools - update to 4.18.8-1
samba-usershares - update to 4.18.8-1
libwbclient - update to 4.18.8-1
libsmbclient-devel - update to 4.18.8-1
libsmbclient - update to 4.18.8-1
libnetapi-devel - update to 4.18.8-1
libnetapi - update to 4.18.8-1
ctdb - update to 4.18.8-1
samba-vfs-iouring - update to 4.18.8-1
samba-winbind - update to 4.18.8-1
samba-winbind-modules - update to 4.18.8-1
samba-pidl - update to 4.18.8-1
samba-dc-provision - update to 4.18.8-1
libwbclient-devel - update to 4.18.8-1
samba-common - update to 4.18.8-1
samba-winbind-krb5-locator - update to 4.18.8-1
samba-winbind-clients - update to 4.18.8-1
QuTS hero - update to h5.1.3.2578 build 20231110
VMware Tanzu Application Service for VMs - addressed in versions 3.0.18, 4.0.10
Isolation Segment - addressed in versions 3.0.18, 4.0.10
QNAP QTS - update to 5.1.3.2578 20231110
Storage Scale - update to 5.1.9.2
net-fs/samba - update to 4.18.9
samba - update to 4.18.8
samba (Ubuntu package) - addressed in versions 2:4.15.13+dfsg-0ubuntu0.20.04.6, 2:4.15.13+dfsg-0ubuntu0.20.04.7, 2:4.15.13+dfsg-0ubuntu1.5, 2:4.17.7+dfsg-1ubuntu2.3, 2:4.18.6+dfsg-1ubuntu2.1
samba (Debian package) - update to 2:4.17.12+dfsg-0+deb12u1

• https://www.samba.org/samba/security/CVE-2023-42670.html

• Multiple vulnerabilities in Samba
• Ubuntu update for samba
• Slackware Linux update for samba
• SUSE update for samba
• Fedora 39 update for samba
• Fedora 38 update for samba
• Fedora 37 update for samba
• Ubuntu update for samba
• Debian update for samba
• Ubuntu update for samba
• VMware Tanzu products update for Samba
• Multiple vulnerabilities in QNAP QTS and QuTS hero
• Gentoo update for Samba
• SolarWinds Security Event Manager (SEM) update for third-party components
• openEuler 22.03 LTS SP1 update for samba
• openEuler 22.03 LTS SP2 update for samba
• Anolis OS update for samba
• Multiple vulnerabilities in IBM Storage Scale
• Multiple vulnerabilities in JD Edwards EnterpriseOne Tools