PT-2023-3605 · Zyxel · Zyxel Usg Flex Series +4

Name of the Vulnerable Software and Affected Versions: Zyxel USG FLEX series firmware versions 5.00 through 5.36 Patch 2 Zyxel USG FLEX 50W series firmware versions 5.10 through 5.36 Patch 2 Zyxel USG20W-VPN series firmware versions 5.10 through 5.36 Patch 2 Zyxel ATP series firmware versions 5.1...

kernel: ipv6: ensure sane device mtu in tunnels

A flaw was found in the Linux kernel’s IPv6 networking code affecting the handling of IPv6 GRE tunnels. Under certain conditions, an IPv6 tunnel configuration could result in an invalid MTU Maximum Transmission Unit value being written to a network device without sanitization. Because the MTU val...

K49144112: tcpdump vulnerabilities CVE-2016-7934, CVE-2016-7935, CVE-2016-7936, CVE-2016-7937, and CVE-2016-7939

Security Advisory Description CVE-2016-7934 The RTCP parser in tcpdump before 4.9.0 has a buffer overflow in print-udp.c:rtcpprint. CVE-2016-7935 The RTP parser in tcpdump before 4.9.0 has a buffer overflow in print-udp.c:rtpprint. CVE-2016-7936 The UDP parser in tcpdump before 4.9.0 has a buffer...

SUSE CVE-2016-7939

The GRE parser in tcpdump before 4.9.0 has a buffer overflow in print-gre.c, multiple functions...

SUSE CVE-2017-5342

In tcpdump before 4.9.0, a bug in multiple protocol parsers Geneve, GRE, NSH, OTV, VXLAN and VXLAN GPE could cause a buffer overflow in print-ether.c:etherprint...

SUSE CVE-2017-5897

The ip6greerr function in net/ipv6/ip6gre.c in the Linux kernel allows remote attackers to have unspecified impact via vectors involving GRE flags in an IPv6 packet, which trigger an out-of-bounds access...

CVE-2022-40997

Several stack-based buffer overflow vulnerabilities exist in the DetranCLI command parsing functionality of Siretta QUARTZ-GOLD G5.0.1.5-210720-141020. A specially-crafted network packet can lead to arbitrary command execution. An attacker can send a sequence of requests to trigger these...

CVE-2022-40997

Several stack-based buffer overflow vulnerabilities exist in the DetranCLI command parsing functionality of Siretta QUARTZ-GOLD G5.0.1.5-210720-141020. A specially-crafted network packet can lead to arbitrary command execution. An attacker can send a sequence of requests to trigger these...

CVE-2022-40999: Buffer Copy without Checking Size of Input

Several stack-based buffer overflow vulnerabilities exist in the DetranCLI command parsing functionality of Siretta QUARTZ-GOLD G5.0.1.5-210720-141020. A specially-crafted network packet can lead to arbitrary command execution. An attacker can send a sequence of requests to trigger these...

CVE-2022-40998: Buffer Copy without Checking Size of Input

Several stack-based buffer overflow vulnerabilities exist in the DetranCLI command parsing functionality of Siretta QUARTZ-GOLD G5.0.1.5-210720-141020. A specially-crafted network packet can lead to arbitrary command execution. An attacker can send a sequence of requests to trigger these...

RapperBot Campaign Launches DDoS Attacks on Game Servers

Threat Level Attack Report For a detailed threat advisory, download the pdf file here Summary The new RapperBot malware version creates a botnet capable of launching Distributed Denial of Service DDoS attacks. The latest version can launch Telnet brute-force strikes, DoS attacks using the Generic...

CVE-2022-20946

A vulnerability in the generic routing encapsulation GRE tunnel decapsulation feature of Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. This vulnerability is due to a memory handling err...

CVE-2022-20946

A vulnerability in the generic routing encapsulation GRE tunnel decapsulation feature of Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. This vulnerability is due to a memory handling err...

kernel: ip_gre: test csum_start instead of transport header

In the Linux kernel, the following vulnerability has been resolved: ipgre: test csumstart instead of transport header GRE with TUNNELCSUM will apply local checksum offload on CHECKSUMPARTIAL packets. ipgrexmit must validate csumstart after an optional skbpull, else lcocsum may trigger an overflow...

CVE-2022-20946: Heap-based Buffer Overflow

A vulnerability in the generic routing encapsulation GRE tunnel decapsulation feature of Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. This vulnerability is due to a memory handling err...

CVE-2022-20946

Cisco Firepower Threat Defense (FTD) Software is affected by CVE-2022-20946, a memory-handling error in GRE tunnel decapsulation that can be exploited by unauthenticated remote attackers to restart the device and cause DoS. The issue affects GRE processing in FTD; exploitation requires sending a ...

Cisco Firepower Threat Defense Software Generic Routing Encapsulation Denial of Service Vulnerability

A vulnerability in the generic routing encapsulation GRE tunnel decapsulation feature of Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. This vulnerability is due to a memory handling err...

Linux ip_gre.c Gre Handle Offload

The vulnerability of the grehandleoffloads function in the ipgre.c component of the Linux operating system is related to the disclosure of information in the erroneous data area. Exploiting this vulnerability allows an attacker to gain access to confidential data...

GSD-2022-1003258 ip_gre: test csum_start instead of transport header

ipgre: test csumstart instead of transport header This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.47 by commit...

GSD-2022-1002589 ip_gre: test csum_start instead of transport header

ipgre: test csumstart instead of transport header This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.18.4 by commit...