An out-of-bounds read in IPsec of Ivanti Connect Secure before version 22.7R2.1 allows a remote unauthenticated attacker to cause a denial of service.
A NULL pointer dereference in WLAvalancheService in Ivanti Avalanche 6.3.1 allows a remote unauthenticated attacker to crash the service, resulting in a DoS.
A heap-based buffer overflow in IPsec of Ivanti Connect Secure before version 22.7R2.3 allows a remote unauthenticated attacker to cause a denial of service.
An out of bounds read in Ivanti Connect Secure before version 22.7R2.3 allows a remote unauthenticated attacker to trigger an infinite loop, causing a denial of service.
An off-by-one error in WLInfoRailService in Ivanti Avalanche 6.3.1 allows a remote unauthenticated attacker to crash the service, resulting in a DoS.
A vulnerability exists on all versions of Ivanti Connect Secure below 22.6R2 where an attacker can send a specific request which may lead to Denial of Service (DoS) of the appliance.
Jonathan Looney discovered that the TCP retransmission queue implementation in tcp_fragment in the Linux kernel could be fragmented when handling certain TCP Selective Acknowledgment (SACK) sequences. A remote attacker could use this to cause a denial of service. This has been fixed in stable kernel releases 4.4.182, 4.9.182, 4.14.127, 4.19.52, 5.1.11, and is fixed in commit f070ef2ac66716357066b683fb0baf55f8191a2e.
Jonathan Looney discovered that the TCP_SKB_CB(skb)->tcp_gso_segs value was subject to an integer overflow in the Linux kernel when handling TCP Selective Acknowledgments (SACKs). A remote attacker could use this to cause a denial of service. This has been fixed in stable kernel releases 4.4.182, 4.9.182, 4.14.127, 4.19.52, 5.1.11, and is fixed in commit 3b4929f65b0d8249f19a50245cd88ed1a2f78cff.
An attacker sending specially crafted data packets to the Mobile Device Server can cause memory corruption which could result to a Denial of Service (DoS).
An Integer Overflow vulnerability in WLInfoRailService component of Ivanti Avalanche before 6.4.3 allows an unauthenticated remote attacker to perform denial of service attacks. In certain rare conditions this could also lead to reading content from memory.
Pulse Connect Secure (PCS) 8.2 before 8.2r1, 8.1 before 8.1r3, 8.0 before 8.0r11, and 7.4 before 7.4r13.4 allow remote attackers to cause a denial of service (CPU consumption) via unspecified vectors.
An attacker sending specially crafted data packets to the Mobile Device Server can cause memory corruption which could result to a Denial of Service (DoS).
An attacker sending specially crafted data packets to the Mobile Device Server can cause memory corruption which could result to a Denial of Service (DoS) or code execution.
A null pointer dereference vulnerability in IPSec component of Ivanti Connect Secure (9.x, 22.x) and Ivanti Policy Secure allows an unauthenticated malicious user to send specially crafted requests in-order-to crash the service thereby causing a DoS attack
An Improper Check for Unusual or Exceptional Conditions vulnerability in the web component of Ivanti Connect Secure (9.x, 22.x) and Ivanti Policy Secure (9.x, 22.x) allows a remote unauthenticated attacker to send specially crafted requests in-order-to cause service disruptions.
An out-of-bounds write in IPsec of Ivanti Connect Secure before version 22.7R2.1(Not Applicable to 9.1Rx) allows a remote unauthenticated attacker to cause a denial of service.
Pulse Secure Pulse One On-Premise 2.0.1649 and below does not properly validate requests, which allows remote users to query and obtain sensitive information.
A improper input validation vulnerability exists in Ivanti Endpoint Manager 2022 and below that could allow privilege escalation or remote code execution.
A vulnerability has been discovered in login.cgi in Pulse Secure Pulse Connect Secure (PCS) 8.1RX before 8.1R12 and 8.3RX before 8.3R2 and Pulse Policy Secure (PPS) 5.2RX before 5.2R9 and 5.4RX before 5.4R2 wherein an http(s) Host header received from the browser is trusted without validation.
Improper input validation in the Central Filestore in Ivanti Avalanche 6.3.1 allows a remote authenticated attacker with admin rights to achieve RCE.
An input validation issue has been found with login_meeting.cgi in Pulse Secure Pulse Connect Secure 8.3RX before 8.3R2.
An attacker can send a specially crafted message to the Wavelink Avalanche Manager, which could result in service disruption or arbitrary code execution. Thanks to a Researcher at Tenable for finding and reporting. Fixed in version 6.4.1.
A vulnerability in the Pulse Connect Secure < 9.1R9 admin web interface could allow an authenticated attacker to perform an arbitrary file reading vulnerability is fixed using encrypted URL blacklisting that prevents these messages.
Microsoft .NET Framework 4.6, 4.6.1, 4.6.2, and 4.7 allow an attacker to send specially crafted requests to a .NET web application, resulting in denial of service, aka .NET Denial of Service Vulnerability.
In Wireshark 2.2.0 to 2.2.6 and 2.0.0 to 2.0.12, the openSAFETY dissector could crash or exhaust system memory. This was addressed in epan/dissectors/packet-opensafety.c by checking for a negative length.
The PPTP-ALG component in CRS Carrier Grade Services Engine (CGSE) and ASR 9000 Integrated Service Module (ISM) in Cisco IOS XR allows remote attackers to cause a denial of service (module reset) via crafted packet streams, aka Bug ID CSCue91963.
The SIP channel driver (channels/chan_sip.c) in Asterisk Open Source 1.8.x before 1.8.23.1, 10.x before 10.12.3, and 11.x before 11.5.1; Certified Asterisk 1.8.15 before 1.8.15-cert3 and 11.2 before 11.2-cert2; and Asterisk Digiumphones 10.x-digiumphones before 10.12.3-digiumphones allows remote attackers to cause a denial of service (NULL pointer dereference, segmentation fault, and daemon crash) via an invalid SDP that defines a media description before the connection description in a SIP request.
An incorrect "pair?" check in the Scheme "length" procedure results in an unsafe pointer dereference in all CHICKEN Scheme versions prior to 4.13, which allows an attacker to cause a denial of service by passing an improper list to an application that calls "length" on it.
The qemu-nbd server in QEMU (aka Quick Emulator), when built with the Network Block Device (NBD) Server support, allows remote attackers to cause a denial of service (segmentation fault and server crash) by leveraging failure to ensure that all initialization occurs before talking to a client in the nbd_negotiate function.
In Wireshark 2.2.0 to 2.2.6, the IPv6 dissector could crash. This was addressed in epan/dissectors/packet-ipv6.c by validating an IPv6 address.
The Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.28, is vulnerable to an invalid read of size 1 because the existing reloc offset range tests didn't catch small negative offsets less than the size of the reloc field. This vulnerability causes programs that conduct an analysis of binary programs using the libbfd library, such as objdump, to crash.
In Wireshark 2.2.0 to 2.2.6 and 2.0.0 to 2.0.12, the RGMP dissector could crash. This was addressed in epan/dissectors/packet-rgmp.c by validating an IPv4 address.
Vulnerabilities in RPC servers in (1) Microsoft Exchange Server 2000 and earlier, (2) Microsoft SQL Server 2000 and earlier, (3) Windows NT 4.0, and (4) Windows 2000 allow remote attackers to cause a denial of service via malformed inputs.
If a long user name is used in a username/password combination in a site URL (such as " http://UserName:Password@example.com"), the resulting modal prompt will hang in a non-responsive state or crash, causing a denial of service. This vulnerability affects Firefox < 55.
Huawei firewall products USG9500 V500R001C50 has a DoS vulnerability.A remote attacker who controls the peer device could exploit the vulnerability by sending malformed IKE packets to the target device. Successful exploit of the vulnerability could cause the device to restart.
AC6005 V200R006C10SPC200,AC6605 V200R006C10SPC200,AR1200 with software V200R005C10CP0582T, V200R005C10HP0581T, V200R005C20SPC026T,AR200 with software V200R005C20SPC026T,AR3200 V200R005C20SPC026T,CloudEngine 12800 with software V100R003C00, V100R005C00, V100R005C10, V100R006C00, V200R001C00,CloudEngine 5800 with software V100R003C00, V100R005C00, V100R005C10, V100R006C00, V200R001C00,CloudEngine 6800 with software V100R003C00, V100R005C00, V100R005C10, V100R006C00, V200R001C00,CloudEngine 7800 with software V100R003C00, V100R005C00, V100R005C10, V100R006C00, V200R001C00,CloudEngine 8800 with software V100R006C00, V200R001C00,E600 V200R008C00,S12700 with software V200R005C00, V200R006C00, V200R007C00, V200R008C00,S1700 with software V100R006C00, V100R007C00, V200R006C00,S2300 with software V100R005C00, V100R006C00, V100R006C03, V100R006C05, V200R003C00, V200R003C02, V200R003C10, V200R005C00, V200R005C01, V200R005C02, V200R005C03, V200R006C00, V200R007C00, V200R008C00,S2700 with software V100R005C00, V100R006C00, V100R006C03, V100R006C05, V200R003C00, V200R003C02, V200R003C10, V200R005C00, V200R005C01, V200R005C02, V200R005C03, V200R006C00, V200R007C00, V200R008C00,S5300 with software V100R005C00, V100R006C00, V100R006C01, V200R001C00, V200R001C01, V200R002C00, V200R003C00, V200R003C02, V200R003C10, V200R005C00, V200R006C00, V200R007C00, V200R008C00,S5700 with software V100R005C00, V100R006C00, V100R006C01, V200R001C00, V200R001C01, V200R002C00, V200R003C00, V200R003C02, V200R003C10, V200R005C00, V200R006C00, V200R007C00, V200R008C00,S6300 with software V100R006C00, V200R001C00, V200R001C01, V200R002C00, V200R003C00, V200R003C02, V200R003C10, V200R005C00, V200R008C00,S6700 with software V100R006C00, V200R001C00, V200R001C01, V200R002C00, V200R003C00, V200R003C02, V200R003C10, V200R005C00, V200R006C00, V200R007C00, V200R008C00,S7700 with software V100R003C00, V100R006C00, V200R001C00, V200R001C01, V200R002C00, V200R003C00, V200R005C00, V200R006C00, V200R007C00, V200R008C00,S9300 with software V100R001C00, V100R002C00, V100R003C00, V100R006C00, V200R001C00, V200R002C00, V200R003C00, V200R005C00, V200R006C00, V200R007C00, V200R008C00, V200R008C10,S9700 with software V200R001C00, V200R002C00, V200R003C00, V200R005C00, V200R006C00, V200R007C00, V200R008C00,Secospace USG6600 V500R001C00SPC050 have a MaxAge LSA vulnerability due to improper OSPF implementation. When the device receives special LSA packets, the LS (Link Status) age would be set to MaxAge, 3600 seconds. An attacker can exploit this vulnerability to poison the route table and launch a DoS attack.
EMC AppSync host plug-in versions 3.5 and below (Windows platform only) includes a denial of service (DoS) vulnerability that could potentially be exploited by malicious users to compromise the affected system.
XStream through 1.4.9, when a certain denyTypes workaround is not used, mishandles attempts to create an instance of the primitive type 'void' during unmarshalling, leading to a remote application crash, as demonstrated by an xstream.fromXML("<void/>") call.
Buffer overflow in the web-application interface on Cisco 9900 IP phones allows remote attackers to cause a denial of service (webapp interface outage) via long values in unspecified fields, aka Bug ID CSCuh10343.
Adobe LiveCycle Data Services 3.1 and earlier, LiveCycle 9.0.0.2 and earlier, and BlazeDS 4.0.1 and earlier do not properly handle object graphs, which allows attackers to cause a denial of service via unspecified vectors, related to a "complex object graph vulnerability."
Palo Alto Networks Traps ESM Console before 3.4.4 allows attackers to cause a denial of service by leveraging improper validation of requests to revoke a Traps agent license.
Moxa MXView 2.8 allows remote attackers to cause a Denial of Service by sending overly long junk payload for the MXView client login credentials.
OpenVPN version 2.3.12 and newer is vulnerable to unauthenticated Denial of Service of server via received large control packet. Note that this issue is fixed in 2.3.15 and 2.4.2.
An issue was discovered in EMC ScaleIO 2.0.1.x. A vulnerability in message parsers (MDM, SDS, and LIA) could potentially allow an unauthenticated remote attacker to send specifically crafted packets to stop ScaleIO services and cause a denial of service situation.
There is a DOS attack vulnerability in Apache Traffic Server (ATS) 5.2.0 to 5.3.2, 6.0.0 to 6.2.0, and 7.0.0 with the TLS handshake. This issue can cause the server to coredump.
An assertion-failure flaw was found in Qemu before 2.10.1, in the Network Block Device (NBD) server's initial connection negotiation, where the I/O coroutine was undefined. This could crash the qemu-nbd server if a client sent unexpected data during connection negotiation. A remote user or process could use this flaw to crash the qemu-nbd server resulting in denial of service.
In TigerVNC 1.7.1 (SSecurityPlain.cxx SSecurityPlain::processMsg), unauthenticated users can crash the server by sending long usernames.
NetIQ iManager 3.x before 3.0.3.1 has an issue in the renegotiation of connection parameters with Tomcat.
On F5 BIG-IP systems running 13.0.0, 12.1.0 - 12.1.3.1, or 11.6.1 - 11.6.2, the BIG-IP ASM bd daemon may core dump memory under some circumstances when processing undisclosed types of data on systems with 48 or more CPU cores.
In Wireshark 2.2.0 to 2.2.4 and 2.0.0 to 2.0.10, there is a K12 file parser crash, triggered by a malformed capture file. This was addressed in wiretap/k12.c by validating the relationships between lengths and offsets.