#dos

SpyCamLizard version 1.230 remote denial of service exploit.

Although custom parameters and functions are only supported at the database level, it was allowed to invoke those entities at the root or namespace level. This would cause a panic which would crash the SurrealDB server, leading to denial of service. ### Impact A client that is authorized to run queries at the root or namespace level in a SurrealDB server is able to run a query invoking a parameter or a function at that level, which will cause a panic. This will crash the server, leading to denial of service. ### Patches - Version 1.1.1 and later are not affected by this issue. ### Workarounds Concerned users unable to update may want to limit the ability of untrusted users to run arbitrary SurrealQL queries in the affected versions of SurrealDB to the database level. To limit the impact of the denial of service, SurrealDB administrators may also want to ensure that the SurrealDB process is running so that it can be automatically re-started after a crash. ### References - #3297

An issue was discovered in Contiki-NG tinyDTLS versions through 2018-08-30. A buffer over-read exists in the dtls_sha256_update function. This bug allows remote attackers to cause a denial of service (crash) and possibly read sensitive information by sending a malformed packet with an over-large fragment length field, due to servers incorrectly handling malformed packets.

An issue was discovered in Contiki-NG tinyDTLS versions through 2018-08-30. An assertion failure in check_certificate_request() causes the server to exit unexpectedly, resulting in a denial of service.

An issue was discovered in Contiki-NG tinyDTLS versions through 2018-08-30. Incorrect handling of over-large packets in dtls_ccm_decrypt_message() causes a buffer over-read that can expose sensitive information.

An issue was discovered in Contiki-NG tinyDTLS versions through 2018-08-30. An infinite loop bug exists during the handling of a ClientHello handshake message. This bug allows remote attackers to cause a denial of service by sending a malformed ClientHello handshake message with an odd length of cipher suites, which triggers an infinite loop (consuming all resources) and a buffer over-read that can disclose sensitive information.

An issue was discovered in Contiki-NG tinyDTLS versions through 2018-08-30. DTLS servers mishandle the early use of a large epoch number. This vulnerability allows remote attackers to cause a denial of service and false-positive packet drops.

An issue was discovered in Contiki-NG tinyDTLS versions through 2018-08-30. One incorrect handshake could complete with different epoch numbers in the packets Client_Hello, Client_key_exchange, and Change_cipher_spec, which may cause denial of service.

Redis raft versions master-1b8bd86 to master-7b46079 were discovered to contain an ODR violation via the component hiredisAllocFns at /opt/fs/redisraft/deps/hiredis/alloc.c.

View CSAF 1. EXECUTIVE SUMMARY CVSS v3 7.5 ATTENTION: Exploitable remotely/low attack complexity Vendor: AVEVA Equipment: PI Server Vulnerabilities: Improper Check or Handling of Exceptional Conditions, Missing Release of Resource after Effective Lifetime 2. RISK EVALUATION Successful exploitation of these vulnerabilities could allow an attacker to crash the product being accessed or throttle the memory leading to a partial denial-of-service condition. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following versions of AVEVA PI Server, are affected: PI Server: 2023 PI Server: 2018 SP3 P05 and prior 3.2 Vulnerability Overview 3.2.1 IMPROPER CHECK OR HANDLING OF EXCEPTIONAL CONDITIONS CWE-703 AVEVA PI Server versions 2023 and 2018 SP3 P05 and prior contain a vulnerability that could allow an unauthenticated user to remotely crash the PI Message Subsystem of a PI Server, resulting in a denial-of-service condition. CVE-2023-34348 has been assigned to this vulnerability. A CVSS v3 base sco...