Debian Samba vulnerabilities

CVE-2025-10230 [CRITICAL] CVE-2025-10230: samba - A flaw was found in Samba, in the front-end WINS hook handling: NetBIOS names fr... A flaw was found in Samba, in the front-end WINS hook handling: NetBIOS names from registration packets are passed to a shell without proper validation or escaping. Unsanitized NetBIOS name data from WINS registration packets are inserted into a shell command and executed by the Samba Active Directory Domain Controller’s wins hook, allowing an unauthenticated netw

CVE-2025-9640 [MEDIUM] CVE-2025-9640: samba - A flaw was found in Samba, in the vfs_streams_xattr module, where uninitialized ... A flaw was found in Samba, in the vfs_streams_xattr module, where uninitialized heap memory could be written into alternate data streams. This allows an authenticated user to read residual memory content that may include sensitive data, resulting in an information disclosure vulnerability. Scope: local bookworm: resolved (fixed in 2:4.17.12+dfsg-0+deb12u3) bullseye: r

CVE-2025-0620 [MEDIUM] CVE-2025-0620: samba - A flaw was found in Samba. The smbd service daemon does not pick up group member... A flaw was found in Samba. The smbd service daemon does not pick up group membership changes when re-authenticating an expired SMB session. This issue can expose file shares until clients disconnect and then connect again. Scope: local bookworm: resolved bullseye: resolved forky: resolved (fixed in 2:4.22.2+dfsg-1) sid: resolved (fixed in 2:4.22.2+dfsg-1) trixie: reso

CVE-2023-3961 [CRITICAL] CVE-2023-3961: samba - A path traversal vulnerability was identified in Samba when processing client pi... 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

CVE-2023-34966 [HIGH] CVE-2023-34966: samba - An infinite loop vulnerability was found in Samba's mdssvc RPC service for Spotl... An infinite loop vulnerability was found in Samba's mdssvc RPC service for Spotlight. When parsing Spotlight mdssvc RPC packets sent by the client, the core unmarshalling function sl_unpack_loop() did not validate a field in the network packet that contains the count of elements in an array-like structure. By passing 0 as the count value, the attacked function will ru

CVE-2023-4154 [HIGH] CVE-2023-4154: samba - A design flaw was found in Samba's DirSync control implementation, which exposes... 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 sho

CVE-2023-0225 [MEDIUM] CVE-2023-0225: samba - A flaw was found in Samba. An incomplete access check on dnsHostName allows auth... A flaw was found in Samba. An incomplete access check on dnsHostName allows authenticated but otherwise unprivileged users to delete this attribute from any object in the directory. Scope: local bookworm: resolved (fixed in 2:4.17.7+dfsg-1) bullseye: open forky: resolved (fixed in 2:4.17.7+dfsg-1) sid: resolved (fixed in 2:4.17.7+dfsg-1) trixie: resolved (fixed in 2:4

CVE-2023-0614 [MEDIUM] CVE-2023-0614: samba - The fix in 4.6.16, 4.7.9, 4.8.4 and 4.9.7 for CVE-2018-10919 Confidential attrib... The fix in 4.6.16, 4.7.9, 4.8.4 and 4.9.7 for CVE-2018-10919 Confidential attribute disclosure vi LDAP filters was insufficient and an attacker may be able to obtain confidential BitLocker recovery keys from a Samba AD DC. Scope: local bookworm: resolved (fixed in 2:4.17.7+dfsg-1) bullseye: open forky: resolved (fixed in 2:4.17.7+dfsg-1) sid: resolved (fixed in 2:4.17

CVE-2023-34967 [MEDIUM] CVE-2023-34967: samba - A Type Confusion vulnerability was found in Samba's mdssvc RPC service for Spotl... A Type Confusion vulnerability was found in Samba's mdssvc RPC service for Spotlight. When parsing Spotlight mdssvc RPC packets, one encoded data structure is a key-value style dictionary where the keys are character strings, and the values can be any of the supported types in the mdssvc protocol. Due to a lack of type checking in callers of the dalloc_value_for_key

CVE-2023-4091 [MEDIUM] CVE-2023-4091: samba - A vulnerability was discovered in Samba, where the flaw allows SMB clients to tr... 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 clien

CVE-2023-3347 [MEDIUM] CVE-2023-3347: samba - A vulnerability was found in Samba's SMB2 packet signing mechanism. The SMB2 pac... A vulnerability was found in Samba's SMB2 packet signing mechanism. The SMB2 packet signing is not enforced if an admin configured "server signing = required" or for SMB2 connections to Domain Controllers where SMB2 packet signing is mandatory. This flaw allows an attacker to perform attacks, such as a man-in-the-middle attack, by intercepting the network traffic and

CVE-2023-34968 [MEDIUM] CVE-2023-34968: samba - A path disclosure vulnerability was found in Samba. As part of the Spotlight pro... A path disclosure vulnerability was found in Samba. As part of the Spotlight protocol, Samba discloses the server-side absolute path of shares, files, and directories in the results for search queries. This flaw allows a malicious client or an attacker with a targeted RPC request to view the information that is part of the disclosed path. Scope: local bookworm: reso

CVE-2023-42670 [MEDIUM] CVE-2023-42670: samba - A flaw was found in Samba. It is susceptible to a vulnerability where multiple i... 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 uni

CVE-2023-42669 [MEDIUM] CVE-2023-42669: samba - A vulnerability was found in Samba's "rpcecho" development server, a non-Windows... 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

CVE-2023-0922 [MEDIUM] CVE-2023-0922: samba - The Samba AD DC administration tool, when operating against a remote LDAP server... The Samba AD DC administration tool, when operating against a remote LDAP server, will by default send new or reset passwords over a signed-only connection. Scope: local bookworm: resolved (fixed in 2:4.17.7+dfsg-1) bullseye: open forky: resolved (fixed in 2:4.17.7+dfsg-1) sid: resolved (fixed in 2:4.17.7+dfsg-1) trixie: resolved (fixed in 2:4.17.7+dfsg-1)

CVE-2023-5568 [MEDIUM] CVE-2023-5568: samba - A heap-based Buffer Overflow flaw was discovered in Samba. It could allow a remo... 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. Scope: local bookworm: resolved bullseye: resolved forky: resolved (fixed in 2:4.19.2+dfsg-1) sid: resolved (fixed in 2:4.19.2+dfsg-1) trixie: resolved (fixed in 2:4.19.2+dfsg-1)

CVE-2022-44640 [CRITICAL] CVE-2022-44640: heimdal - Heimdal before 7.7.1 allows remote attackers to execute arbitrary code because o... Heimdal before 7.7.1 allows remote attackers to execute arbitrary code because of an invalid free in the ASN.1 codec used by the Key Distribution Center (KDC). Scope: local bookworm: resolved (fixed in 7.8.git20221115.a6cf945+dfsg-1) bullseye: resolved (fixed in 7.7.0+dfsg-2+deb11u2) forky: resolved (fixed in 7.8.git20221115.a6cf945+dfsg-1) sid: resolved (fixed

CVE-2022-45141 [CRITICAL] CVE-2022-45141: samba - Since the Windows Kerberos RC4-HMAC Elevation of Privilege Vulnerability was dis... Since the Windows Kerberos RC4-HMAC Elevation of Privilege Vulnerability was disclosed by Microsoft on Nov 8 2022 and per RFC8429 it is assumed that rc4-hmac is weak, Vulnerable Samba Active Directory DCs will issue rc4-hmac encrypted tickets despite the target server supporting better encryption (eg aes256-cts-hmac-sha1-96). Scope: local bookworm: resolved (fixed

CVE-2022-0336 [HIGH] CVE-2022-0336: samba - The Samba AD DC includes checks when adding service principals names (SPNs) to a... The Samba AD DC includes checks when adding service principals names (SPNs) to an account to ensure that SPNs do not alias with those already in the database. Some of these checks are able to be bypassed if an account modification re-adds an SPN that was previously present on that account, such as one added when a computer is joined to a domain. An attacker who has the

CVE-2022-42898 [HIGH] CVE-2022-42898: heimdal - PAC parsing in MIT Kerberos 5 (aka krb5) before 1.19.4 and 1.20.x before 1.20.1 ... PAC parsing in MIT Kerberos 5 (aka krb5) before 1.19.4 and 1.20.x before 1.20.1 has integer overflows that may lead to remote code execution (in KDC, kadmind, or a GSS or Kerberos application server) on 32-bit platforms (which have a resultant heap-based buffer overflow), and cause a denial of service on other platforms. This occurs in krb5_pac_parse in lib/krb5/krb