The high-speed logging (HSL) feature in Cisco IOS XE 2.x and 3.x before 3.10.4S, 3.11 before 3.11.3S, 3.12 before 3.12.1S, 3.13 before 3.13.0S, 3.14 before 3.14.0S, and 3.15 before 3.15.0S allows remote attackers to cause a denial of service (device reload) via large IP packets that require NAT and HSL processing after fragmentation, aka Bug ID CSCuo25741.
Cisco IOS 12.2, 12.4, 15.0, 15.2, and 15.3 allows remote attackers to cause a denial of service (device reload) via malformed Common Industrial Protocol (CIP) UDP packets, aka Bug ID CSCum98371.
The Autonomic Networking Infrastructure (ANI) implementation in Cisco IOS 12.2, 12.4, 15.0, 15.2, 15.3, and 15.4 and IOS XE 3.10.xS through 3.13.xS before 3.13.1S allows remote attackers to cause a denial of service (disrupted domain access) via spoofed AN messages that reset a finite state machine, aka Bug ID CSCup62293.
Cisco IOS 12.2, 12.4, 15.0, 15.2, and 15.3 allows remote attackers to cause a denial of service (device reload) via malformed Common Industrial Protocol (CIP) TCP packets, aka Bug ID CSCun63514.
Cisco IP Phone 7861, when firmware from Cisco Unified Communications Manager 10.3(1) is used, allows remote attackers to cause a denial of service via crafted packets, aka Bug ID CSCus81800.
A vulnerability in the received packet parser of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) software could allow an unauthenticated, remote attacker to cause a reload of the affected system, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient size validation of user-supplied data. An attacker could exploit this vulnerability by sending crafted H.224 data in Real-Time Transport Protocol (RTP) packets in an H.323 call. An exploit could allow the attacker to overflow a buffer in a cache that belongs to the received packet parser, which will result in a crash of the application, resulting in a DoS condition. All versions of Cisco Expressway Series Software and Cisco TelePresence VCS Software prior to version X8.8.2 are vulnerable. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. Cisco Bug IDs: CSCus99263.
Cisco TelePresence Supervisor MSE 8050 before 2.3(1.31) allows remote attackers to cause a denial of service (CPU consumption or device reload) by establishing TCP connections at a high rate, aka Bug IDs CSCuf76076 and CSCuf79763.
Cisco IOS XE 3.2 through 3.4 before 3.4.5S, and 3.5 through 3.7 before 3.7.1S, on 1000 series Aggregation Services Routers (ASR), when VRF-aware NAT and SIP ALG are enabled, allows remote attackers to cause a denial of service (card reload) by sending many SIP packets, aka Bug ID CSCuc65609.
A vulnerability in the vDaemon process of Cisco SD-WAN Software could allow an unauthenticated, remote attacker to cause a device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to insufficient handling of malformed packets. An attacker could exploit this vulnerability by sending crafted traffic to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
A vulnerability in the vDaemon process of Cisco IOS XE SD-WAN Software could allow an unauthenticated, remote attacker to cause a device to reload, resulting a denial of service (DoS) condition. This vulnerability is due to insufficient handling of malformed packets. An attacker could exploit this vulnerability by sending crafted traffic to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
Multiple vulnerabilities in Cisco SD-WAN vManage Software could allow an unauthenticated, remote attacker to execute arbitrary code or gain access to sensitive information, or allow an authenticated, local attacker to gain escalated privileges or gain unauthorized access to the application. For more information about these vulnerabilities, see the Details section of this advisory.
A vulnerability in the Excel XLM macro parsing module in Clam AntiVirus (ClamAV) Software versions 0.103.0 and 0.103.1 could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to improper error handling that may result in an infinite loop. An attacker could exploit this vulnerability by sending a crafted Excel file to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process hang, resulting in a denial of service condition.
A vulnerability in the Border Gateway Protocol (BGP) Multicast VPN (MVPN) implementation of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause an affected device to unexpectedly reload, resulting in a denial of service (DoS) condition. The vulnerability is due to incomplete input validation of a specific type of BGP MVPN update message. An attacker could exploit this vulnerability by sending this specific, valid BGP MVPN update message to a targeted device. A successful exploit could allow the attacker to cause one of the BGP-related routing applications to restart multiple times, leading to a system-level restart. Note: The Cisco implementation of BGP accepts incoming BGP traffic from only explicitly configured peers. To exploit this vulnerability, an attacker must send a specific BGP MVPN update message over an established TCP connection that appears to come from a trusted BGP peer. To do so, the attacker must obtain information about the BGP peers in the trusted network of the affected system.
A vulnerability in the ICMP ingress packet processing of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 4110 appliances could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to incomplete input validation upon receiving ICMP packets. An attacker could exploit this vulnerability by sending a high number of crafted ICMP or ICMPv6 packets to an affected device. A successful exploit could allow the attacker to cause a memory exhaustion condition that may result in an unexpected reload. No manual intervention is needed to recover the device after the reload.
A vulnerability in the Flexible NetFlow Version 9 packet processor of Cisco IOS XE Software for Cisco Catalyst 9800 Series Wireless Controllers and Cisco AireOS Software for Cisco Wireless LAN Controllers (WLC) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient validation of certain parameters in a Flexible NetFlow Version 9 record. An attacker could exploit this vulnerability by spoofing the address of an existing Access Point on the network and sending a Control and Provisioning of Wireless Access Points (CAPWAP) packet that includes a crafted Flexible NetFlow Version 9 record to an affected device. A successful exploit could allow the attacker to cause a process crash that would lead to a reload of the device.
A vulnerability in the Session Initiation Protocol (SIP) library of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient sanity checks on received SIP messages. An attacker could exploit this vulnerability by sending crafted SIP messages to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service condition.
Multiple vulnerabilities in the implementation of the Common Industrial Protocol (CIP) feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerabilities are due to insufficient input processing of CIP traffic. An attacker could exploit these vulnerabilities by sending crafted CIP traffic to be processed by an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.
A vulnerability in the web UI of Cisco Small Business Switches could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper validation of requests sent to the web interface. An attacker could exploit this vulnerability by sending a malicious request to the web interface of an affected device. A successful exploit could allow the attacker to cause an unexpected reload of the device, resulting in a DoS condition. This vulnerability affects firmware releases prior than 1.3.7.18
The Internet Streamer application in Cisco Content Delivery System (CDS) with software 2.5.7, 2.5.8, and 2.5.9 before build 126 allows remote attackers to cause a denial of service (Web Engine crash) via a crafted URL, aka Bug IDs CSCtg67333 and CSCth25341.
The NAT implementation in Cisco IOS 12.1 through 12.4 and 15.0 through 15.1, and IOS XE 3.1.xSG, allows remote attackers to cause a denial of service (device reload or hang) via malformed NetMeeting Directory (aka Internet Locator Service or ILS) LDAP traffic, aka Bug ID CSCtd10712.
Unspecified vulnerability in Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 6.x before 6.1(5)su2, 7.x before 7.1(5)su1, 8.0 before 8.0(3), and 8.5 before 8.5(1) allows remote attackers to cause a denial of service (process failure) via a malformed SIP message, aka Bug ID CSCtg62855.
The ethernet-lldp component in Cisco IOS 12.2 before 12.2(33)SXJ1 does not properly support a large number of LLDP Management Address (MA) TLVs, which allows remote attackers to cause a denial of service (device crash) via crafted LLDPDUs, aka Bug ID CSCtj22354.
Cisco IOS 12.2(58)SE, when a login banner is configured, allows remote attackers to cause a denial of service (device reload) by establishing two SSH2 sessions, aka Bug ID CSCto62631.
Cisco Adaptive Security Appliances (ASA) 5500 series devices with software 8.0 before 8.0(5.20), 8.1 before 8.1(2.48), 8.2 before 8.2(3), and 8.3 before 8.3(2.1), when the RIP protocol and the Cisco Phone Proxy functionality are configured, allow remote attackers to cause a denial of service (device reload) via a RIP update, aka Bug ID CSCtg66583.
Cisco Adaptive Security Appliances (ASA) 5500 series devices with software 7.0 before 7.0(8.11), 7.1 and 7.2 before 7.2(5.1), 8.0 before 8.0(5.19), 8.1 before 8.1(2.47), 8.2 before 8.2(2.19), and 8.3 before 8.3(1.8); Cisco PIX Security Appliances 500 series devices; and Cisco Firewall Services Module (aka FWSM) 3.1 before 3.1(20), 3.2 before 3.2(20), 4.0 before 4.0(15), and 4.1 before 4.1(5) allow remote attackers to cause a denial of service (device reload) via a malformed Skinny Client Control Protocol (SCCP) message, aka Bug IDs CSCtg69457 and CSCtl84952.
The XML-RPC implementation on Cisco TelePresence Multipoint Switch (CTMS) devices with software 1.0.x, 1.1.x, 1.5.x, 1.6.x, and 1.7.0 allows remote attackers to cause a denial of service (process crash) via a crafted request, aka Bug ID CSCtj44534.
Buffer overflow in the web-based management interface on the Cisco Linksys WRT54GC router with firmware before 1.06.1 allows remote attackers to cause a denial of service (device crash) via a long string in a POST request.
Unspecified vulnerability on Cisco Adaptive Security Appliances (ASA) 5500 series devices with software 8.2(4) and earlier allows remote attackers to cause a denial of service (block exhaustion) via multicast traffic, aka Bug ID CSCtg63992.
Unspecified vulnerability on Cisco Adaptive Security Appliances (ASA) 5500 series devices with software before 8.3(2) allows remote attackers to cause a denial of service (device crash) via a large number of LAN-to-LAN (aka L2L) IPsec sessions, aka Bug ID CSCth36592.
The Neighbor Discovery (ND) protocol implementation in the IPv6 stack on Cisco Adaptive Security Appliances (ASA) 5500 series devices with software 8.2(3) and earlier, and Cisco PIX Security Appliances devices, allows remote attackers to cause a denial of service (CPU consumption and device hang) by sending many Router Advertisement (RA) messages with different source addresses, as demonstrated by the flood_router6 program in the thc-ipv6 package, aka Bug ID CSCti24526.
Memory leak on Cisco Adaptive Security Appliances (ASA) 5500 series devices with software before 8.2(3) allows remote attackers to cause a denial of service (memory consumption) by making multiple incorrect LDAP authentication attempts, aka Bug ID CSCtf29867.
Unspecified vulnerability in the SIP inspection feature on Cisco Adaptive Security Appliances (ASA) 5500 series devices with software before 8.3(2) allows remote attackers to cause a denial of service (device crash) by making many SIP calls, aka Bug ID CSCte20030.
Unspecified vulnerability on Cisco Adaptive Security Appliances (ASA) 5500 series devices with software before 8.3(2) allows remote attackers to cause a denial of service (device crash) via multicast traffic, aka Bug IDs CSCtg61810 and CSCtg69742.
A vulnerability in the Network Time Protocol (NTP) feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to excessive use of system resources when the affected device is logging a drop action for received MODE_PRIVATE (Mode 7) NTP packets. An attacker could exploit this vulnerability by flooding the device with a steady stream of Mode 7 NTP packets. A successful exploit could allow the attacker to cause high CPU and memory usage on the affected device, which could cause internal system processes to restart or cause the affected device to unexpectedly reload. Note: The NTP feature is enabled by default.
Cisco Adaptive Security Appliances (ASA) 5500 series devices with software 8.2(3) and earlier allow remote attackers to cause a denial of service (block exhaustion) via EIGRP traffic that triggers an EIGRP multicast storm, aka Bug ID CSCtf20269.
The Neighbor Discovery (ND) protocol implementation in the IPv6 stack in Cisco IOS before 15.0(1)XA5 allows remote attackers to cause a denial of service (CPU consumption and device hang) by sending many Router Advertisement (RA) messages with different source addresses, as demonstrated by the flood_router6 program in the thc-ipv6 package, aka Bug ID CSCti33534.
Cisco Unified Wireless Network (UWN) Solution 7.x before 7.0.98.0 on 5508 series controllers allows remote attackers to cause a denial of service (buffer leak and device crash) via ARP requests that trigger an ARP storm, aka Bug ID CSCte43508.
The workgroup bridge (aka WGB) functionality in Cisco Unified Wireless Network (UWN) Solution 7.x before 7.0.98.0 allows remote attackers to cause a denial of service (dropped connection) via a series of spoofed EAPoL-Logoff frames, related to an "EAPoL logoff attack," aka Bug ID CSCte43374.
Unspecified vulnerability in the NAT for H.323 implementation in Cisco IOS 12.1 through 12.4 and 15.0 through 15.1 allows remote attackers to cause a denial of service (device reload) via transit traffic, aka Bug ID CSCtf91428.
Unspecified vulnerability in the IKE implementation on Cisco Adaptive Security Appliances (ASA) 5500 series devices with software 7.0 before 7.0(8.11), 7.1 and 7.2 before 7.2(5), 8.0 before 8.0(5.15), 8.1 before 8.1(2.44), 8.2 before 8.2(2.10), and 8.3 before 8.3(1.1) and Cisco PIX Security Appliances 500 series devices allows remote attackers to cause a denial of service (device reload) via a crafted IKE message, aka Bug ID CSCte46507.
Unspecified vulnerability on the Cisco Application Control Engine (ACE) Module with software A2(1.x) before A2(1.6), A2(2.x) before A2(2.3), and A2(3.x) before A2(3.1) for Catalyst 6500 series switches and 7600 series routers allows remote attackers to cause a denial of service (device reload) via a sequence of SSL packets, aka Bug ID CSCta20756.
Unspecified vulnerability in the deep packet inspection feature on the Cisco Application Control Engine (ACE) 4710 appliance with software before A3(2.6) allows remote attackers to cause a denial of service (device reload) via crafted HTTP packets, related to HTTP, RTSP, and SIP inspection, aka Bug ID CSCtb54493.
The SendCombinedStatusInfo implementation in Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 7.0SU before 7.0(2a)SU3, 7.1 before 7.1(5), and 8.0 before 8.0(3) allows remote attackers to cause a denial of service (process failure) via a malformed SIP REGISTER message, aka Bug ID CSCtf66305.
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.
Unspecified vulnerability in the Transport Layer Security (TLS) implementation on Cisco Adaptive Security Appliances (ASA) 5500 series devices with software 7.2 before 7.2(5), 8.0 before 8.0(5.15), 8.1 before 8.1(2.44), 8.2 before 8.2(2.17), and 8.3 before 8.3(1.6) and Cisco PIX Security Appliances 500 series devices allows remote attackers to cause a denial of service (device reload) via a sequence of crafted TLS packets, aka Bug ID CSCtf55259.
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.
Unspecified vulnerability in the SunRPC inspection feature on the Cisco Firewall Services Module (FWSM) with software 3.1 before 3.1(17.2), 3.2 before 3.2(16.1), 4.0 before 4.0(10.1), and 4.1 before 4.1(1.1) for Catalyst 6500 series switches and 7600 series routers allows remote attackers to cause a denial of service (device reload) via crafted SunRPC messages, aka Bug ID CSCte61662.
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 6.1(5), 7.0 before 7.0(2a)su3, 7.1su before 7.1(3b)su2, 7.1 before 7.1(5), and 8.0 before 8.0(1) allow remote attackers to cause a denial of service (device reload or voice-services outage) via a SIP REFER request with an invalid Refer-To header, aka Bug IDs CSCta20040 and CSCta31358.
Unspecified vulnerability in the SunRPC inspection feature on the Cisco Firewall Services Module (FWSM) with software 3.1 before 3.1(17.2), 3.2 before 3.2(16.1), 4.0 before 4.0(10.1), and 4.1 before 4.1(1.1) for Catalyst 6500 series switches and 7600 series routers allows remote attackers to cause a denial of service (device reload) via crafted SunRPC messages, aka Bug ID CSCte61710.
Unspecified vulnerability in the SIP implementation on the Cisco PGW 2200 Softswitch with software 9.7(3)S before 9.7(3)S9 and 9.7(3)P before 9.7(3)P9 allows remote attackers to cause a denial of service (TCP socket exhaustion) via unknown vectors, aka Bug ID CSCsk13561.