CVSS: 6.8EPSS: 2%CPEs: 1EXPL: 0CVE-2023-5568 – Samba: heap buffer overflow with freshness tokens in the heimdal kdc
https://notcve.org/view.php?id=CVE-2023-5568
24 Oct 2023 — A heap-based Buffer Overflow flaw was discovered in Samba. It could allow a remote, authenticated attacker to exploit this vulnerability to cause a denial of service. Se descubrió una falla de desbordamiento de búfer basada en montón en Samba. Podría permitir que un atacante remoto y autenticado aproveche esta vulnerabilidad para provocar una denegación de servicio. • https://access.redhat.com/security/cve/CVE-2023-5568 • CWE-122: Heap-based Buffer Overflow CWE-787: Out-of-bounds Write •
CVSS: 10.0EPSS: 7%CPEs: 7EXPL: 1CVE-2023-3961 – Samba: smbd allows client access to unix domain sockets on the file system as root
https://notcve.org/view.php?id=CVE-2023-3961
12 Oct 2023 — 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 connect... • https://access.redhat.com/errata/RHSA-2023:6209 • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') •
CVSS: 6.8EPSS: 4%CPEs: 11EXPL: 0CVE-2023-42669 – Samba: "rpcecho" development server allows denial of service via sleep() call on ad dc
https://notcve.org/view.php?id=CVE-2023-42669
11 Oct 2023 — A vulnerability was found in Samba's "rpcecho" development server, a non-Windows RPC server used to test Samba's DCE/RPC stack elements. This vulnerability stems from an RPC function that can be blocked indefinitely. The issue arises because the "rpcecho" service operates with only one worker in the main RPC task, allowing calls to the "rpcecho" server to be blocked for a specified time, causing service disruptions. This disruption is triggered by a "sleep()" call in the "dcesrv_echo_TestSleep()" function u... • https://access.redhat.com/errata/RHSA-2023:6209 • CWE-400: Uncontrolled Resource Consumption •
CVSS: 6.8EPSS: 2%CPEs: 4EXPL: 0CVE-2023-42670 – Samba: ad dc busy rpc multiple listener dos
https://notcve.org/view.php?id=CVE-2023-42670
11 Oct 2023 — A flaw was found in Samba. It is susceptible to a vulnerability where multiple incompatible RPC listeners can be initiated, causing disruptions in the AD DC service. When Samba's RPC server experiences a high load or unresponsiveness, servers intended for non-AD DC purposes (for example, NT4-emulation "classic DCs") can erroneously start and compete for the same unix domain sockets. This issue leads to partial query responses from the AD DC, causing issues such as "The procedure number is out of range" when... • https://access.redhat.com/security/cve/CVE-2023-42670 • CWE-400: Uncontrolled Resource Consumption •
CVSS: 6.8EPSS: 1%CPEs: 7EXPL: 0CVE-2023-4091 – Samba: smb clients can truncate files with read-only permissions
https://notcve.org/view.php?id=CVE-2023-4091
11 Oct 2023 — A vulnerability was discovered in Samba, where the flaw allows SMB clients to truncate files, even with read-only permissions when the Samba VFS module "acl_xattr" is configured with "acl_xattr:ignore system acls = yes". The SMB protocol allows opening files when the client requests read-only access but then implicitly truncates the opened file to 0 bytes if the client specifies a separate OVERWRITE create disposition request. The issue arises in configurations that bypass kernel file system permissions che... • https://access.redhat.com/errata/RHSA-2023:6209 • CWE-276: Incorrect Default Permissions •
CVSS: 7.5EPSS: 0%CPEs: 3EXPL: 0CVE-2023-4154 – Samba: ad dc password exposure to privileged users and rodcs
https://notcve.org/view.php?id=CVE-2023-4154
11 Oct 2023 — A design flaw was found in Samba's DirSync control implementation, which exposes passwords and secrets in Active Directory to privileged users and Read-Only Domain Controllers (RODCs). This flaw allows RODCs and users possessing the GET_CHANGES right to access all attributes, including sensitive secrets and passwords. Even in a default setup, RODC DC accounts, which should only replicate some passwords, can gain access to all domain secrets, including the vital krbtgt, effectively eliminating the RODC / DC ... • https://access.redhat.com/security/cve/CVE-2023-4154 • CWE-787: Out-of-bounds Write •