CVE-2010-2834

Cisco IOS 12.2 through 12.4 and 15.0 through 15.1, Cisco IOS XE 2.5.x and 2.6.x before 2.6.1, and Cisco Unified Communications Manager aka CUCM, formerly CallManager 6.x before 6.15SU1, 7.x before 7.15, and 8.0 before 8.02 allow remote attackers to cause a denial of service device reload or...

Memory corruption

Memory leak in the SSL VPN feature in Cisco IOS 12.4, 15.0, and 15.1, when HTTP port redirection is enabled, allows remote attackers to cause a denial of service memory consumption by improperly disconnecting SSL sessions, leading to connections that remain in the CLOSE-WAIT state, aka Bug ID...

Code injection

Unspecified vulnerability in the H.323 implementation in Cisco IOS 12.1 through 12.4 and 15.0 through 15.1, and IOS XE 2.5.x before 2.5.2 and 2.6.x before 2.6.1, allows remote attackers to cause a denial of service traceback and device reload via crafted H.323 packets, aka Bug ID CSCtd33567...

Code injection

Cisco IOS 12.2 through 12.4 and 15.0 through 15.1, Cisco IOS XE 2.5.x and 2.6.x before 2.6.1, and Cisco Unified Communications Manager aka CUCM, formerly CallManager 6.x before 6.15SU1, 7.x before 7.15, and 8.0 before 8.02 allow remote attackers to cause a denial of service device reload or...

Code injection

Unspecified vulnerability in the H.323 implementation in Cisco IOS 12.1 through 12.4 and 15.0 through 15.1, and IOS XE 2.5.x before 2.5.2 and 2.6.x before 2.6.1, allows remote attackers to cause a denial of service device reload via crafted H.323 packets, aka Bug ID CSCtc73759...

CVE-2010-2829

CVE-2010-2829 affects Cisco IOS Software H.323 implementation; vulnerable are IOS 12.1–12.4, IOS 15.0–15.1, and IOS XE 2.5.x before 2.5.2 and 2.6.x before 2.6.1. A crafted H.323 packet can cause a denial of service (traceback and device reload) due to Bug CSCtd33567. Cisco advisories state update...

CVE-2010-2836

CVE-2010-2836 describes a memory leak in Cisco IOS SSL VPN when HTTP port redirection is enabled. A remote attacker can exploit this by disconnecting SSL sessions, causing sessions to linger in CLOSE_WAIT and eventual memory exhaustion, potentially denying service to new connections. Affected sof...

IOS Stack Group Bidding Protocol Crafted Packet DoS - Cisco Systems

The Cisco IOS Stack Group Bidding Protocol SGBP feature in certain versions of Cisco IOS software is vulnerable to a remotely-exploitable denial of service condition. Devices that do not support or have not enabled the SGBP protocol are not affected by this vulnerability. Cisco has made free...

Vulnerabilities in H.323 Message Processing - Cisco Systems

Multiple Cisco products contain vulnerabilities in the processing of H.323 messages, which are typically used in Voice over Internet Protocol VoIP or multimedia applications. A test suite has been developed by the University of Oulu to target this protocol and identify vulnerabilities. Support fo...

Cisco IOS User Datagram Protocol Delivery Issue For IPv4/IPv6 Dual-stack Routers - Cisco Systems

A device running Cisco IOS software that has Internet Protocol version 6 IPv6 enabled may be subject to a denial of service DoS attack. For the device to be affected by this vulnerability the device also has to have certain Internet Protocol version 4 IPv4 User Datagram Protocol UDP services...

Vulnerability in Cisco IOS While Processing SSL Packet - Cisco Systems

A Cisco IOS device may crash while processing an SSL packet. This can happen during the termination of an SSL-based session. The offending packet is not malformed and is normally received as part of the packet exchange. Cisco has released free software updates that address this vulnerability. Asi...

Cisco IOS Software H.323 Denial of Service Vulnerabilities (cisco-sa-20100324-h323)

The H.323 implementation in Cisco IOS Software contains two vulnerabilities that may be exploited remotely to cause a denial of service DoS condition on a device that is running a vulnerable version of Cisco IOS Software. Cisco has released free software updates that address these vulnerabilities...

Cisco IOS Software Crafted TCP Packet Denial of Service Vulnerability (cisco-sa-20100324-tcp)

Cisco IOS Software is affected by a denial of service vulnerability that may allow a remote unauthenticated attacker to cause an affected device to reload or hang. The vulnerability may be triggered by a TCP segment containing crafted TCP options that is received during the TCP session...

Voice Vulnerabilities in Cisco IOS and Cisco Unified Communications Manager - Cisco Systems

Multiple voice-related vulnerabilities are identified in Cisco IOS software, one of which is also shared with Cisco Unified Communications Manager. These vulnerabilities pertain to the following protocols or features: - Session Initiation Protocol SIP - Media Gateway Control Protocol MGCP -...

Cisco IOS IPS Denial of Service Vulnerability - Cisco Systems

The Cisco IOS Intrusion Prevention System IPS feature contains a vulnerability in the processing of certain IPS signatures that use the SERVICE.DNS engine. This vulnerability may cause a router to crash or hang, resulting in a denial of service condition. Cisco has released free software updates...

Vulnerability in Cisco IOS with OSPF, MPLS VPN, and Supervisor 32, Supervisor 720, or Route Switch Processor 720

Certain Cisco Catalyst 6500 Series and Cisco 7600 Router devices that run branches of Cisco IOS based on 12.2 can be vulnerable to a denial of service vulnerability that can prevent any traffic from entering an affected interface. For a device to be vulnerable, it must be configured for Open...

Cisco IOS Software Multiple Features IP Sockets Vulnerability

A vulnerability in the handling of IP sockets can cause devices to be vulnerable to a denial of service attack when any of several features of Cisco IOS Software are enabled. A sequence of specially crafted TCP/IP packets could cause any of the following results: Cisco has released free software...

Multiple IOS IPS Vulnerabilities

The Intrusion Prevention System IPS feature set of Cisco IOS contains several vulnerabilities. These include: - Fragmented IP packets may be used to evade signature inspection. CVE-2007-0917 - IPS signatures utilizing the regular expression feature of the ATOMIC.TCP signature engine may cause a...

Cisco IOS Software Multiple Features Crafted UDP Packet Vulnerability - Cisco Systems

Several features within Cisco IOS Software are affected by a crafted UDP packet vulnerability. If any of the affected features are enabled, a successful attack will result in a blocked input queue on the inbound interface. Only crafted UDP packets destined for the device could result in the...

IOS Heap-based Overflow Vulnerability in System Timers - Cisco Systems

The Cisco Internetwork Operating System IOS may permit arbitrary code execution after exploitation of a heap-based buffer overflow vulnerability. Cisco has included additional integrity checks in its software, that are intended to reduce the likelihood of arbitrary code execution. This is not a...