Stack-based buffer overflow in the AUTH_LIST_GROUPS_FOR_AUTHID function in IBM DB2 UDB 9.1 before Fixpak 3 allows attackers to cause a denial of service and possibly execute arbitrary code via a long argument.

The Java Message Service (JMS) in IBM WebSphere Application Server (WAS) before 6.1.0.7 allows attackers to cause a denial of service via unknown vectors involving the "double release [of] a bytebuffer input stream," possibly a double free vulnerability.

The telnet server in Infoprint 21 running controller software before 1.056007 allows remote attackers to cause a denial of service (crash) via a long username, possibly due to a buffer overflow.

IBM Tivoli Directory Server (TDS) 6.0.0.x before 6.0.0.8-TIV-ITDS-IF0007 does not properly handle invalid buffer references in LDAP BER requests, which might allow remote attackers to cause a denial of service (daemon crash) via vectors involving a buffer that has a memory address near the maximum possible address.

PCRE 7.8 and 8.32 through 8.37, and PCRE2 10.10 mishandle group empty matches, which might allow remote attackers to cause a denial of service (stack-based buffer overflow) via a crafted regular expression, as demonstrated by /^(?:(?(1)\\.|([^\\\\W_])?)+)+$/.

IBM Cognos TM1 10.1 and 10.2 is vulnerable to a denial of service, caused by a stack-based buffer overflow when parsing packets. A remote attacker could exploit this vulnerability to cause a denial of service. IBM X-Force ID: 114612.

Buffer overflow in the CLI on IBM WebSphere DataPower XC10 appliances 2.1 and 2.5 allows remote authenticated users to cause a denial of service via unspecified vectors.

Buffer overflow in KDSMAIN in the Basic Services component in IBM Tivoli Monitoring (ITM) 6.2.0 through FP3, 6.2.1 through FP4, 6.2.2 through FP9, and 6.2.3 before FP3, as used in IBM Application Manager for Smart Business (formerly Tivoli Foundations Application Manager) 1.2.1 before 1.2.1.0-TIV-IAMSB-FP0004 and other products, allows remote attackers to cause a denial of service (segmentation fault) via a crafted http URL.

The Spectrum Scale 4.2.0.0 through 4.2.3.21 and 5.0.0.0 through 5.0.4.3 file system component is affected by a denial of service security vulnerability. An attacker can force the Spectrum Scale mmfsd/mmsdrserv daemons to unexpectedly exit, impacting the functionality of the Spectrum Scale cluster and the availability of file systems managed by Spectrum Scale. IBM X-Force ID: 179987.

IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 could allow an unauthenticated user to send specially crafted packets to cause a denial of service from excessive memory usage.

IBM Spectrum Protect 7.1 and 8.1 dsmc and dsmcad processes incorrectly accumulate TCP/IP sockets in a CLOSE_WAIT state. This can cause TCP/IP resource leakage and may result in a denial of service. IBM X-Force ID: 148871.

IBM MQ, IBM MQ Appliance, IBM MQ for HPE NonStop 8.0, 9.1 CD, and 9.1 LTS could allow an attacker to cause a denial of service due to a memory leak caused by an error creating a dynamic queue. IBM X-Force ID: 179080.

IBM Sterling Connect Direct for Microsoft Windows 4.7, 4.8, 6.0, and 6.1 could allow a remote attacker to cause a denial of service, caused by a buffer over-read. Bysending a specially crafted request, the attacker could cause the application to crash. IBM X-Force ID: 188906.

IBM Spectrum Protect 7.1 and 8.1 could allow an attacker to cause a denial of service due ti improper validation of user-supplied input. IBM X-Force ID: 183613.

IBM DataPower Gateway 2018.4.1.0 through 2018.4.1.12 could allow a remote attacker to cause a denial of service by sending a chunked transfer-encoding HTTP/2 request. IBM X-Force ID: 184441.

IBM API Connect 2018.1 through 2018.3.7 could allow an unauthenticated attacker to cause a denial of service due to not setting limits on JSON payload size. IBM X-Force ID: 148802.

IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 is vulnerable to a denial of service, caused by improper handling of Secure Sockets Layer (SSL) renegotiation requests. By sending specially-crafted requests, a remote attacker could exploit this vulnerability to increase the resource usage on the system. IBM X-Force ID: 178507.

IBM DataPower Gateway 10.0.1.0 through 10.0.1.4 and 2018.4.1.0 through 2018.4.1.17 could allow a remote user to cause a temporary denial of service by sending invalid HTTP requests. IBM X-Force ID: 192906.

IBM DataPower Gateway 2018.4.1.0 through 2018.4.1.12 could allow a remote attacker to cause a denial of service by sending a specially crafted a JSON request with invalid characters. IBM X-Force ID: 184439.

IBM MQ 9.2 CD and LTS are vulnerable to a denial of service attack caused by an error processing connecting applications. IBM X-Force ID: 190833.

IBM DataPower Gateway 2018.4.1.0 through 2018.4.1.12 could allow a remote attacker to cause a denial of service by sending a specially crafted HTTP/2 request with invalid characters. IBM X-Force ID: 184438.

IBM QRadar Incident Forensics 7.2 and 7.3 does not properly restrict the size or amount of resources requested which could allow an unauthenticated user to cause a denial of service. IBM X-Force ID: 144650.

IBM MQ and MQ Appliance 7.1, 7.5, 8.0, 9.0 LTS, 9.1 LTS, and 9.1 C are vulnerable to a denial of service attack due to an error within the Data Conversion logic. IBM X-Force ID: 177081.

IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 could allow an unauthenticated attacker to cause a denial of service due a hang in the SSL handshake response. IBM X-Force ID: 193660.

Lotus Domino server 5.0.9a and earlier allows remote attackers to cause a denial of service by exhausting the number of working threads via a large number of HTTP requests for (1) an MS-DOS device name and (2) an MS-DOS device name with a large number of characters appended to the device name.

IBM Spectrum Protect Plus 10.1.0 through 10.1.7 could allow a remote user to inject arbitrary data iwhich could cause the serivce to crash due to excess resource consumption. IBM X-Force ID: 193659.

IBM Elastic Storage System 6.0.0 through 6.0.1.2 and IBM Elastic Storage Server 5.3.0 through 5.3.6.2 could allow a remote attacker to cause a denial of service by sending malformed UDP requests. IBM X-Force ID: 193486.

The IBM Spectrum Scale 4.2 and 5.0 file system component is affected by a denial of service security vulnerability. An attacker can force the Spectrum Scale mmfsd/mmsdrserv daemons to unexpectedly exit, impacting the functionality of the Spectrum Scale cluster and the availability of file systems managed by Spectrum Scale. IBM X-Force ID: 175067.

Buffer overflow in the FC client for IBM AIX 4.3.x allows remote attackers to cause a denial of service (crash and core dump).

Common Inventory Technology (CIT) before 2.7.0.2050 in IBM License Metric Tool 7.2.2, 7.5, and 9; Endpoint Manger for Software Use Analysis 9; and Tivoli Asset Discovery for Distributed 7.2.2 and 7.5 allows remote attackers to cause a denial of service (CPU consumption or application crash) via a crafted XML query, a different vulnerability than CVE-2014-8926.

Common Inventory Technology (CIT) before 2.7.0.2050 in IBM License Metric Tool 7.2.2, 7.5, and 9; Endpoint Manger for Software Use Analysis 9; and Tivoli Asset Discovery for Distributed 7.2.2 and 7.5 allows remote attackers to cause a denial of service (CPU consumption or application crash) via a crafted XML query, a different vulnerability than CVE-2014-8927.

The web administration interface for IBM AS/400 Firewall allows remote attackers to cause a denial of service via an empty GET request.

IBM Curam Social Program Management (SPM) 5.2 before SP6 EP6, 6.0 SP2 before EP26, 6.0.4 before 6.0.4.6, and 6.0.5 before 6.0.5.6 requires failed-login handling for web-service accounts to have the same lockout policy as for standard user accounts, which makes it easier for remote attackers to cause a denial of service (web-service outage) by making many login attempts with a valid caseworker account name.

IBM MQ Appliance 9.2 CD and 9.2 LTS are vulnerable to a denial of service in the Login component of the application which could allow an attacker to cause a drop in performance.

IBM Spectrum Protect 8.1.0.0 through 8.1.14.0 dsmcad, dsmc, and dsmcsvc processes incorrectly handle certain read operations on TCP/IP sockets. This can result in a denial of service for IBM Spectrum Protect client operations. IBM X-Force ID: 225348.

IBM Sterling External Authentication Server and IBM Sterling Secure Proxy 6.0.3.0, 6.0.2.0, and 3.4.3.2 could allow a remote user to consume resources causing a denial of service due to a resource leak. IBM X-Force ID: 219395.

IBM Spectrum Protect Plus 10.1.0.0 through 10.1.9.2 and IBM Spectrum Copy Data Management 2.2.0.0 through 2.2.14.3 do not limit the length of a connection which could allow for a Slowloris HTTP denial of service attack to take place. This can cause the Admin Console to become unresponsive. IBM X-Force ID: 220485.

IBM WebSphere Portal 6.1.0 through 6.1.0.6 CF27, 6.1.5 through 6.1.5.3 CF27, 7.0 through 7.0.0.2 CF28, and 8.0 before 8.0.0.1 CF12 allows remote attackers to cause a denial of service (resource consumption and daemon crash) via a crafted web request.

The web-server plugin in IBM WebSphere Application Server (WAS) 7.x before 7.0.0.33, 8.x before 8.0.0.9, and 8.5.x before 8.5.5.2, when POST retries are enabled, allows remote attackers to cause a denial of service (daemon crash) via unspecified vectors.

The command-port listener in IBM WebSphere MQ Internet Pass-Thru (MQIPT) 2.x before 2.1.0.1 allows remote attackers to cause a denial of service (remote-administration outage) via unspecified vectors.

IBM WebSphere Commerce 7.0 and 8.0 contains an unspecified vulnerability in Marketing ESpot's that could cause a denial of service. IBM X-Force ID: 131779.

The Meeting Server in IBM Sametime 8.x through 8.5.2.1 and 9.x through 9.0.0.1 allows remote attackers to cause a denial of service (room unusability) by generating a large number of fictitious users to enter a meeting room.

The Fast Communications Manager (FCM) in IBM DB2 Enterprise Server Edition and Advanced Enterprise Server Edition 10.1 before FP3 and 10.5, when a multi-node configuration is used, allows remote attackers to cause a denial of service via vectors involving arbitrary data.

The Basic Services component in IBM Tivoli Monitoring (ITM) 6.2.0 through FP3, 6.2.1 through FP4, 6.2.2 through FP9, and 6.2.3 before FP3, as used in IBM Application Manager for Smart Business (formerly Tivoli Foundations Application Manager) 1.2.1 before 1.2.1.0-TIV-IAMSB-FP0004 and other products, allows remote attackers to cause a denial of service (abend) via a crafted URL.

IBM DataPower Gateway 10.0.2.0, 10.0.3.0, 10.0.1.0 through 10.0.1.4, and 2018.4.1.0 through 2018.4.1.17 could allow a remote user to cause a denial of service by consuming resources with multiple requests. IBM X-Force ID: 208348.

IBM QRadar SIEM 7.3, 7.4, and 7.5 may be vulnerable to partial denial of service attack, resulting in some protocols not listening to specified ports. IBM X-Force ID: 214028.

IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 is vulnerable to a denial of service, caused by sending a specially-crafted request. A remote attacker could exploit this vulnerability to cause the server to consume all available CPU resources. IBM X-Force ID: 211405.

IBM Sterling B2B Integrator 5.0 and 5.1 allows remote attackers to cause a denial of service (memory and CPU consumption) via a crafted HTTP (1) Range or (2) Request-Range header.

IBM DB2 7.0 allows a remote attacker to cause a denial of service (crash) via a single byte to (1) db2ccs.exe on port 6790, or (2) db2jds.exe on port 6789.

IBM Tivoli Directory Server (TDS) 5.2 before 5.2.0.5-TIV-ITDS-LA0007 on AIX allows remote attackers to cause a denial of service (server destabilization) via an anonymous DIGEST-MD5 LDAP Bind operation.