Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software IKEv1 Denial of Service Vulnerability

A vulnerability in the Internet Key Exchange version 1 (IKEv1) feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) 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 improper management of system memory. An attacker could exploit this vulnerability by sending malicious IKEv1 traffic to an affected device. The attacker does not need valid credentials to authenticate the VPN session, nor does the attacker's source address need to match a peer statement in the crypto map applied to the ingress interface of the affected device. An exploit could allow the attacker to exhaust system memory resources, leading to a reload of an affected device.

HTTP/2 Flow‑Control Exploit Causes Unbounded Memory Growth in Proxygen

Proxygen lacked a generalized slow-consumer detection mechanism in its core HTTP session layer. A remote, unauthenticated attacker could exploit HTTP/2 flow-control by setting SETTINGS_INITIAL_WINDOW_SIZE to 0 or withholding WINDOW_UPDATE frames, causing the server to buffer complete response bodies in memory indefinitely for stalled streams. By opening many simultaneous streams requesting large resources while preventing the server from transmitting responses, an attacker could induce unbounded memory growth leading to service degradation, resource exhaustion, or denial of service. Versions v2017.01.16.00 through v2026.07.20.00 are affected.

IBM AIX denial of service

IBM AIX 7.1, 7.2, 7.3, and VIOS 3.1 could allow a non-privileged local user to exploit a vulnerability in the AIX NFS kernel extension to cause a denial of service. IBM X-Force ID: 238640.

Rockwell Automation ControlLogix PLC Improper Access Control

When an affected product receives a valid CIP message from an unauthorized or unintended source to Port 2222/TCP, Port 2222/UDP, Port 44818/TCP, or Port 44818/UDP that instructs the CPU to stop logic execution and enter a fault state, a DoS can occur. This situation could cause loss of availability and a disruption of communication with other connected devices. Rockwell Automation EtherNet/IP products; 1756-ENBT, 1756-EWEB, 1768-ENBT, and 1768-EWEB communication modules; CompactLogix L32E and L35E controllers; 1788-ENBT FLEXLogix adapter; 1794-AENTR FLEX I/O EtherNet/IP adapter; ControlLogix 18 and earlier; CompactLogix 18 and earlier; GuardLogix 18 and earlier; SoftLogix 18 and earlier; CompactLogix controllers 19 and earlier; SoftLogix controllers 19 and earlier; ControlLogix controllers 20 and earlier; GuardLogix controllers 20 and earlier; and MicroLogix 1100 and 1400

IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by a denial of service

IBM WebSphere Application Server - Liberty 19.0.0.7 through 26.0.0.5 and IBM WebSphere Application Server 9.0, and 8.5 and WebSphere Application Server Liberty are vulnerable to a denial of service, caused by sending a specially-crafted request. A remote attacker could exploit this vulnerability to cause the server to consume memory resources.

openssh: Memory exhaustion due to unregistered KEXINIT handler after receiving message

The kex_input_kexinit function in kex.c in OpenSSH 6.x and 7.x through 7.3 allows remote attackers to cause a denial of service (memory consumption) by sending many duplicate KEXINIT requests. NOTE: a third party reports that "OpenSSH upstream does not consider this as a security issue."

Use-after-free vulnerability in the Peer Objects component (aka iepeers.dll) in Microsoft Internet Explorer 6, 6 SP1, and 7 allows remote attackers to execute arbitrary code via vectors involving access to an invalid pointer after the deletion of an object, as exploited in the wild in March 2010, aka "Uninitialized Memory Corruption Vulnerability."

browser engine crashes

Multiple unspecified vulnerabilities in Mozilla Firefox before 2.0.0.13, Thunderbird before 2.0.0.13, and SeaMonkey before 1.1.9 allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unknown vectors related to the layout engine.

The virtual private dial-up network (VPDN) component in Cisco IOS before 12.3 allows remote attackers to cause a denial of service (resource exhaustion) via a series of PPTP sessions, related to the persistence of interface descriptor block (IDB) data structures after process termination, aka bug ID CSCdv59309.

javascript crashes

Multiple unspecified vulnerabilities in Mozilla Firefox before 2.0.0.13, Thunderbird before 2.0.0.13, and SeaMonkey before 1.1.9 allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unknown vectors related to the JavaScript engine.

Memory corruption in ImageMagick's PCX coder

Heap-based buffer overflow in the ReadPCXImage function in the PCX coder in coders/pcx.c in (1) ImageMagick 6.2.4-5 and 6.2.8-0 and (2) GraphicsMagick (aka gm) 1.1.7 allows user-assisted remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a crafted .pcx file that triggers incorrect memory allocation for the scanline array, leading to memory corruption.

The cadbd RPC service in CA BrightStor ARCServe BackUp v9.01 through R11.5, and Enterprise Backup r10.5, allows remote attackers to (1) execute arbitrary code via stack-based buffer overflows in unspecified RPC procedures, and (2) trigger memory corruption related to the use of "handle" RPC arguments as pointers.

clamav: DoS via crafted RAR archive

libclamunrar in ClamAV before 0.93 allows remote attackers to cause a denial of service (crash) via crafted RAR files that trigger "memory problems," as demonstrated by the PROTOS GENOME test suite for Archive Formats.

ovalarmsrv in HP OpenView Network Node Manager (OV NNM) 7.51, 7.53, and possibly other versions allows remote attackers to cause a denial of service (hang) via certain requests that do not provide all required arguments.

Mozilla layout engine crashes

The browser engine in Mozilla Firefox before 2.0.0.12, Thunderbird before 2.0.0.12, and SeaMonkey before 1.1.8 allows remote attackers to cause a denial of service (crash) and possibly trigger memory corruption via vectors related to the (1) nsTableFrame::GetFrameAtOrBefore, (2) nsAccessibilityService::GetAccessible, (3) nsBindingManager::GetNestedInsertionPoint, (4) nsXBLPrototypeBinding::AttributeChanged, (5) nsColumnSetFrame::GetContentInsertionFrame, and (6) nsLineLayout::TrimTrailingWhiteSpaceIn methods, and other vectors.

Windows Media Player 10.00.00.4036 in Microsoft Windows XP SP2 allows user-assisted remote attackers to cause a denial of service via a .MID (MIDI) file with a malformed header chunk without any track chunks, possibly involving (1) number of tracks of (2) time division fields that are set to 0.

Unspecified vulnerability in dbasvr in CA BrightStor ARCServe BackUp v9.01 through R11.5, and Enterprise Backup r10.5, has unknown impact and attack vectors related to memory corruption.

Unspecified vulnerability in Microsoft Visio 2002 SP2, 2003 SP2 and SP3, and 2007 up to SP1 allows user-assisted remote attackers to execute arbitrary code via a crafted .DXF file, aka "Visio Memory Validation Vulnerability."

Microsoft Project 2000 Service Release 1, 2002 SP1, and 2003 SP2 allows user-assisted remote attackers to execute arbitrary code via a crafted Project file, related to improper validation of "memory resource allocations."

security flaw

The do_ipv6_setsockopt function in net/ipv6/ipv6_sockglue.c in Linux kernel before 2.6.20, and possibly other versions, allows local users to cause a denial of service (oops) by calling setsockopt with the IPV6_RTHDR option name and possibly a zero option length or invalid option value, which triggers a NULL pointer dereference.