The SMB server in Microsoft Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows remote attackers to cause a denial of service (system hang) via a crafted (1) SMBv1 or (2) SMBv2 request, aka "SMB Request Parsing Vulnerability."

Double free vulnerability in IBM WebSphere Application Server (WAS) 6.1.0.x before 6.1.0.35 and 7.x before 7.0.0.15 allows remote backend IIOP servers to cause a denial of service (S0C4 ABEND and storage corruption) by rejecting IIOP requests at opportunistic time instants, as demonstrated by requests associated with an ORB_Request::getACRWorkElementPtr function call.

The Service Integration Bus (SIB) messaging engine in IBM WebSphere Application Server (WAS) before 7.0.0.15 allows remote attackers to cause a denial of service (daemon hang) by performing close operations via network connections to a queue manager.

Memory leak in the messaging engine in IBM WebSphere Application Server (WAS) before 7.0.0.15 allows remote attackers to cause a denial of service (memory consumption) via network connections associated with a NULL return value from a synchronous JMS receive call.

The Session Initiation Protocol (SIP) Proxy in the HTTP Transport component in IBM WebSphere Application Server (WAS) before 7.0.0.15 allows remote attackers to cause a denial of service (worker thread exhaustion and UDP messaging outage) by sending many UDP messages.

Memory leak in com.ibm.ws.jsp.runtime.WASJSPStrBufferImpl in the JavaServer Pages (JSP) component in IBM WebSphere Application Server (WAS) 6.1.0.x before 6.1.0.37 and 7.x before 7.0.0.15 allows remote attackers to cause a denial of service (memory consumption) by sending many JSP requests that trigger large responses.

Memory leak in org.apache.jasper.runtime.JspWriterImpl.response in the JavaServer Pages (JSP) component in IBM WebSphere Application Server (WAS) before 7.0.0.15 allows remote attackers to cause a denial of service (memory consumption) by accessing a JSP page of an application that is repeatedly stopped and restarted.

The Security component in IBM WebSphere Application Server (WAS) 6.1.0.x before 6.1.0.35 and 7.x before 7.0.0.15 allows remote authenticated users to cause a denial of service (memory consumption) by using a Lightweight Third-Party Authentication (LTPA) token for authentication.

The SOAP with Attachments API for Java (SAAJ) implementation in the Web Services component in IBM WebSphere Application Server (WAS) 6.1.0.x before 6.1.0.37 and 7.x before 7.0.0.15 allows remote attackers to cause a denial of service (memory consumption) via encrypted SOAP messages.

Opera before 11.50 allows remote attackers to cause a denial of service (disk consumption) via invalid URLs that trigger creation of error pages.

Use-after-free vulnerability in WebKit, as used in Apple Safari before 5.0.5; iOS before 4.3.2 for iPhone, iPod, and iPad; iOS before 4.2.7 for iPhone 4 (CDMA); and possibly other products allows remote attackers to execute arbitrary code by adding children to a WBR tag and then removing the tag, related to text nodes, as demonstrated by Chaouki Bekrar during a Pwn2Own competition at CanSecWest 2011.

daemon/worker.c in Unbound 1.x before 1.4.10, when debugging functionality and the interface-automatic option are enabled, allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a crafted DNS request that triggers improper error handling.

apr: DoS flaw in apr_fnmatch() due to fix for CVE-2011-0419

The fnmatch implementation in apr_fnmatch.c in the Apache Portable Runtime (APR) library 1.4.3 and 1.4.4, and the Apache HTTP Server 2.2.18, allows remote attackers to cause a denial of service (infinite loop) via a URI that does not match unspecified types of wildcard patterns, as demonstrated by attacks against mod_autoindex in httpd when a /*/WEB-INF/ configuration pattern is used. NOTE: this issue exists because of an incorrect fix for CVE-2011-0419.

fetchmail: Application hang due unguarded blocking I/O in IMAP/POP3 STARTTLS initialization (fetchmail-SA-2011-01)

fetchmail 5.9.9 through 6.3.19 does not properly limit the wait time after issuing a (1) STARTTLS or (2) STLS request, which allows remote servers to cause a denial of service (application hang) by acknowledging the request but not sending additional packets.

lib/logmatcher.c in Balabit syslog-ng before 3.2.4, when the global flag is set and when using PCRE 8.12 and possibly other versions, allows remote attackers to cause a denial of service (memory consumption) via a message that does not match a regular expression.

common.php in Post Revolution before 0.8.0c-2 allows remote attackers to cause a denial of service (infinite loop) via malformed HTML markup, as demonstrated by an a< sequence.

wireshark: Infinite loop in the DICOM dissector

The dissect_dcm_main function in epan/dissectors/packet-dcm.c in the DICOM dissector in Wireshark 1.2.x before 1.2.17 and 1.4.x before 1.4.7 allows remote attackers to cause a denial of service (infinite loop) via an invalid PDU length.

Tcpip.sys in the TCP/IP stack in Microsoft Windows 7 Gold and SP1 and Windows Server 2008 R2 and R2 SP1 does not properly implement URL-based QoS, which allows remote attackers to cause a denial of service (reboot) via a crafted URL to a web server, aka "TCP/IP QOS Denial of Service Vulnerability."

The Remote Desktop Protocol (RDP) implementation in Microsoft Windows XP SP2 and SP3 and Windows Server 2003 SP2 does not properly process packets in memory, which allows remote attackers to cause a denial of service (reboot) by sending crafted RDP packets triggering access to an object that (1) was not properly initialized or (2) is deleted, as exploited in the wild in 2011, aka "Remote Desktop Protocol Vulnerability."

The kernel in Microsoft Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 does not properly parse file metadata, which allows local users to cause a denial of service (reboot) via a crafted file, aka "Windows Kernel Metadata Parsing DOS Vulnerability."