CVSS: 6.5EPSS: 0%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
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 under specific conditions. Authenticated users or attackers can exploit this vulnerability to make calls to the "rpcecho" server, requesting it to block for a specified duration, effectively disrupting most services and leading to a complete denial of service on the AD DC. • https://access.redhat.com/errata/RHSA-2023:6209 https://access.redhat.com/errata/RHSA-2023:6744 https://access.redhat.com/errata/RHSA-2023:7371 https://access.redhat.com/errata/RHSA-2023:7408 https://access.redhat.com/errata/RHSA-2023:7464 https://access.redhat.com/errata/RHSA-2023:7467 https://access.redhat.com/security/cve/CVE-2023-42669 https://bugzilla.redhat.com/show_bug.cgi?id=2241884 https://bugzilla.samba.org/show_bug.cgi?id=15474 https://security.netapp.com& • CWE-400: Uncontrolled Resource Consumption •
CVSS: 5.3EPSS: 0%CPEs: 10EXPL: 0CVE-2023-34968 – Samba: spotlight server-side share path disclosure
https://notcve.org/view.php?id=CVE-2023-34968
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. • https://access.redhat.com/errata/RHSA-2023:6667 https://access.redhat.com/errata/RHSA-2023:7139 https://access.redhat.com/errata/RHSA-2024:0423 https://access.redhat.com/errata/RHSA-2024:0580 https://access.redhat.com/security/cve/CVE-2023-34968 https://bugzilla.redhat.com/show_bug.cgi?id=2222795 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BPCSGND7LO467AJGR5DYBGZLTCGTOBCC https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject. •
CVSS: 5.9EPSS: 29%CPEs: 9EXPL: 0CVE-2023-34967 – Samba: type confusion in mdssvc rpc service for spotlight
https://notcve.org/view.php?id=CVE-2023-34967
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() function, which returns the object associated with a key, a caller may trigger a crash in talloc_get_size() when talloc detects that the passed-in pointer is not a valid talloc pointer. With an RPC worker process shared among multiple client connections, a malicious client or attacker can trigger a process crash in a shared RPC mdssvc worker process, affecting all other clients this worker serves. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Samba. • https://access.redhat.com/errata/RHSA-2023:6667 https://access.redhat.com/errata/RHSA-2023:7139 https://access.redhat.com/errata/RHSA-2024:0423 https://access.redhat.com/errata/RHSA-2024:0580 https://access.redhat.com/security/cve/CVE-2023-34967 https://bugzilla.redhat.com/show_bug.cgi?id=2222794 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BPCSGND7LO467AJGR5DYBGZLTCGTOBCC https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject. • CWE-843: Access of Resource Using Incompatible Type ('Type Confusion') •
CVSS: 7.5EPSS: 12%CPEs: 9EXPL: 0CVE-2023-34966 – Samba: infinite loop in mdssvc rpc service for spotlight
https://notcve.org/view.php?id=CVE-2023-34966
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 run in an endless loop consuming 100% CPU. This flaw allows an attacker to issue a malformed RPC request, triggering an infinite loop, resulting in a denial of service condition. This vulnerability allows remote attackers to disclose sensitive information on affected installations of Samba. • https://access.redhat.com/errata/RHSA-2023:6667 https://access.redhat.com/errata/RHSA-2023:7139 https://access.redhat.com/errata/RHSA-2024:0423 https://access.redhat.com/errata/RHSA-2024:0580 https://access.redhat.com/errata/RHSA-2024:4101 https://access.redhat.com/security/cve/CVE-2023-34966 https://bugzilla.redhat.com/show_bug.cgi?id=2222793 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BPCSGND7LO467AJGR5DYBGZLTCGTOBCC https://lists.fedoraproje • CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •
CVSS: 5.9EPSS: 0%CPEs: 6EXPL: 0CVE-2023-3347 – Samba: smb2 packet signing is not enforced when "server signing = required" is set
https://notcve.org/view.php?id=CVE-2023-3347
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 modifying the SMB2 messages between client and server, affecting the integrity of the data. • https://access.redhat.com/errata/RHSA-2023:4325 https://access.redhat.com/errata/RHSA-2023:4328 https://access.redhat.com/security/cve/CVE-2023-3347 https://bugzilla.redhat.com/show_bug.cgi?id=2222792 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BPCSGND7LO467AJGR5DYBGZLTCGTOBCC https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OT74M42E6C36W7PQVY3OS4ZM7DVYB64Z https://security.netapp.com/advisory/ntap-20230731-0010 https://www • CWE-924: Improper Enforcement of Message Integrity During Transmission in a Communication Channel •