Multiple format string vulnerabilities in lib/silcclient/command.c in Secure Internet Live Conferencing (SILC) Toolkit before 1.1.10, and SILC Client 1.1.8 and earlier, allow remote attackers to execute arbitrary code via format string specifiers in a channel name, related to (1) silc_client_command_topic, (2) silc_client_command_kick, (3) silc_client_command_leave, and (4) silc_client_command_users.

Multiple format string vulnerabilities in lib/silcclient/client_entry.c in Secure Internet Live Conferencing (SILC) Toolkit before 1.1.10, and SILC Client before 1.1.8, allow remote attackers to execute arbitrary code via format string specifiers in a nickname field, related to the (1) silc_client_add_client, (2) silc_client_update_client, and (3) silc_client_nickname_format functions.

The decrypt_public function in lib/crypt.cpp in the client in Berkeley Open Infrastructure for Network Computing (BOINC) 6.2.14 and 6.4.5 does not check the return value from the OpenSSL RSA_public_decrypt function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077.

vncviewer.exe in RealVNC Windows Client 4.1.2.0 allows remote VNC servers to cause a denial of service (application crash) via a crafted frame buffer update packet.

Nortel SIP Multimedia PC Client 4.x MCS5100 and MCS5200 does not limit the number of concurrent sessions, which allows attackers to cause a denial of service (resource consumption) via a large number of sessions.

Stack-based buffer overflow in artegic Dana IRC client 1.3 and earlier allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a long IRC message.

No-IP Dynamic Update Client (DUC) 2.2.1 on Windows uses weak permissions for the HKLM\SOFTWARE\Vitalwerks\DUC registry key, which allows local users to obtain obfuscated passwords and other sensitive information by reading the (1) TrayPassword, (2) Username, (3) Password, and (4) Hosts registry values.

The silc_pkcs1_decode function in the silccrypt library (silcpkcs1.c) in Secure Internet Live Conferencing (SILC) Toolkit before 1.1.7, SILC Client before 1.1.4, and SILC Server before 1.1.2 allows remote attackers to execute arbitrary code via a crafted PKCS#1 message, which triggers an integer underflow, signedness error, and a buffer overflow. NOTE: the researcher describes this as an integer overflow, but CVE uses the "underflow" term in cases of wraparound from unsigned subtraction.

Unspecified vulnerability in the Groupmax Collaboration - Schedule component in Hitachi Groupmax Collaboration Portal 07-30 through 07-30-/F and 07-32 through 07-32-/C, uCosminexus Collaboration Portal 06-30 through 06-30-/F and 06-32 through 06-32-/C, and Groupmax Collaboration Web Client - Mail/Schedule 07-30 through 07-30-/F and 07-32 through 07-32-/B might allow remote attackers to obtain sensitive information via unspecified vectors related to schedule portlets.

The Nortel UNIStim IP Softphone 2050, IP Phone 1140E, and additional Nortel products from the IP Phone, Business Communications Manager (BCM), Mobile Voice Client, and other product lines, allow remote attackers to block calls and force re-registration via a resume message to the Signaling Server that has a spoofed source IP address for the phone. NOTE: the attack is more disruptive if a new spoofed resume message is sent after each re-registration.