Critical severity9.1NVD Advisory· Published Nov 3, 2023· Updated Jun 17, 2026
CVE-2023-3961
CVE-2023-3961
Description
A path traversal vulnerability was identified in Samba when processing client pipe names connecting to Unix domain sockets within a private directory. Samba typically uses this mechanism to connect SMB clients to remote procedure call (RPC) services like SAMR LSA or SPOOLSS, which Samba initiates on demand. However, due to inadequate sanitization of incoming client pipe names, allowing a client to send a pipe name containing Unix directory traversal characters (../). This could result in SMB clients connecting as root to Unix domain sockets outside the private directory. If an attacker or client managed to send a pipe name resolving to an external service using an existing Unix domain socket, it could potentially lead to unauthorized access to the service and consequential adverse events, including compromise or service crashes.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
54cpe:/a:redhat:enterprise_linux:8::crb+ 4 more
- cpe:/a:redhat:enterprise_linux:8::crbrange: 0:4.18.6-2.el8_9
- cpe:/o:redhat:enterprise_linux:6
- cpe:/o:redhat:enterprise_linux:7
- cpe:/o:redhat:enterprise_linux:9::baseosrange: 0:4.18.6-101.el9_3
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
- Red Hat/Red Hat Enterprise Linux 8.8 Extended Update Supportv5cpe:/a:redhat:rhel_eus:8.8::appstreamRange: 0:4.17.5-4.el8_8
- Red Hat/Red Hat Enterprise Linux 9.0 Extended Update Supportv5cpe:/a:redhat:rhel_eus:9.0::resilientstorageRange: 0:4.15.5-111.el9_0
- Red Hat/Red Hat Enterprise Linux 9.2 Extended Update Supportv5cpe:/a:redhat:rhel_eus:9.2::crbRange: 0:4.17.5-104.el9_2
- cpe:/a:redhat:storage:3
- cpe:/o:redhat:rhel_eus:8.6::baseosRange: 0:4.15.5-13.el8_6
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*range: <4.17.12
- (no CPE)
- cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_eus:9.0:*:*:*:*:*:*:*
- osv-coords39 versionspkg:rpm/almalinux/ctdbpkg:rpm/almalinux/libnetapipkg:rpm/almalinux/libnetapi-develpkg:rpm/almalinux/libsmbclientpkg:rpm/almalinux/libsmbclient-develpkg:rpm/almalinux/libwbclientpkg:rpm/almalinux/libwbclient-develpkg:rpm/almalinux/python3-sambapkg:rpm/almalinux/python3-samba-dcpkg:rpm/almalinux/python3-samba-develpkg:rpm/almalinux/python3-samba-testpkg:rpm/almalinux/sambapkg:rpm/almalinux/samba-clientpkg:rpm/almalinux/samba-client-libspkg:rpm/almalinux/samba-commonpkg:rpm/almalinux/samba-common-libspkg:rpm/almalinux/samba-common-toolspkg:rpm/almalinux/samba-dc-libspkg:rpm/almalinux/samba-dcerpcpkg:rpm/almalinux/samba-develpkg:rpm/almalinux/samba-krb5-printingpkg:rpm/almalinux/samba-ldb-ldap-modulespkg:rpm/almalinux/samba-libspkg:rpm/almalinux/samba-pidlpkg:rpm/almalinux/samba-testpkg:rpm/almalinux/samba-test-libspkg:rpm/almalinux/samba-toolspkg:rpm/almalinux/samba-usersharespkg:rpm/almalinux/samba-vfs-iouringpkg:rpm/almalinux/samba-winbindpkg:rpm/almalinux/samba-winbind-clientspkg:rpm/almalinux/samba-winbind-krb5-locatorpkg:rpm/almalinux/samba-winbind-modulespkg:rpm/almalinux/samba-winexepkg:rpm/opensuse/samba&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/samba&distro=openSUSE%20Tumbleweedpkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP5pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20Micro%205.5pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5
< 4.18.6-101.el9_3.alma.1+ 38 more
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.18.6-101.el9_3.alma.1
- (no CPE)range: < 4.17.9+git.421.abde31ca5c2-150500.3.11.1
- (no CPE)range: < 4.19.1+git.312.c912b3d2ef6-1.1
- (no CPE)range: < 4.17.9+git.421.abde31ca5c2-150500.3.11.1
- (no CPE)range: < 4.17.9+git.421.abde31ca5c2-150500.3.11.1
- (no CPE)range: < 4.17.9+git.421.abde31ca5c2-150500.3.11.1
Patches
Vulnerability mechanics
References
12- bugzilla.samba.org/show_bug.cginvdExploitIssue Tracking
- access.redhat.com/errata/RHSA-2023:6209nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2023:6744nvdThird Party Advisory
- access.redhat.com/security/cve/CVE-2023-3961nvdThird Party Advisory
- www.samba.org/samba/security/CVE-2023-3961.htmlnvdVendor Advisory
- bugzilla.redhat.com/show_bug.cginvdIssue Tracking
- access.redhat.com/errata/RHSA-2023:7371nvd
- access.redhat.com/errata/RHSA-2023:7408nvd
- access.redhat.com/errata/RHSA-2023:7464nvd
- access.redhat.com/errata/RHSA-2023:7467nvd
- lists.fedoraproject.org/archives/list/[email protected]/message/ZUMVALLFFDFC53JZMUWA6HPD7HUGAP5I/nvd
- security.netapp.com/advisory/ntap-20231124-0002/nvd
News mentions
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