CVE-2023-20027

The CVE-2023-20027 issue affects Cisco IOS XE Software: IPv4 Virtual Fragmentation Reassembly (VFR) when MTU on a tunnel/physical interface is > 4,615 bytes. The root cause is improper reassembly of large fragments, allowing an unauthenticated remote attacker to trigger a DoS by sending fragme...

CVE-2023-20027 Cisco IOS XE Software Virtual Fragmentation Reassembly Denial of Service Vulnerability

A vulnerability in the implementation of the IPv4 Virtual Fragmentation Reassembly VFR feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. This vulnerability is due to improper reassembly of large packe...

CVE-2023-20027 Cisco IOS XE Software Virtual Fragmentation Reassembly Denial of Service Vulnerability

A vulnerability in the implementation of the IPv4 Virtual Fragmentation Reassembly VFR feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. This vulnerability is due to improper reassembly of large packe...

Cisco IOS XE Software Virtual Fragmentation Reassembly Denial of Service Vulnerability

A vulnerability in the implementation of the IPv4 Virtual Fragmentation Reassembly VFR feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. This vulnerability is due to improper reassembly of large packe...

PT-2023-2218 · Cisco · Cisco Ios Xe

Name of the Vulnerable Software and Affected Versions: Cisco IOS XE Software affected versions not specified Description: A vulnerability in the implementation of the IPv4 Virtual Fragmentation Reassembly VFR feature could allow an unauthenticated, remote attacker to cause a denial of service DoS...

Server side request forgery (ssrf)

Discourse is an open-source discussion platform. Prior to version 3.1.0.beta3 of the beta and tests-passed branches, attackers are able to bypass Discourse's server-side request forgery SSRF protection for private IPv4 addresses by using a IPv4-mapped IPv6 address. The issue is patched in the...

CVE-2023-28111 Discourse vulnerable to SSRF protection bypass possible with IPv4-mapped IPv6 addresses

Discourse is an open-source discussion platform. Prior to version 3.1.0.beta3 of the beta and tests-passed branches, attackers are able to bypass Discourse's server-side request forgery SSRF protection for private IPv4 addresses by using a IPv4-mapped IPv6 address. The issue is patched in the...

CVE-2023-28111 Discourse vulnerable to SSRF protection bypass possible with IPv4-mapped IPv6 addresses

Discourse is an open-source discussion platform. Prior to version 3.1.0.beta3 of the beta and tests-passed branches, attackers are able to bypass Discourse's server-side request forgery SSRF protection for private IPv4 addresses by using a IPv4-mapped IPv6 address. The issue is patched in the...

CVE-2023-28111 Discourse vulnerable to SSRF protection bypass possible with IPv4-mapped IPv6 addresses

Discourse is an open-source discussion platform. Prior to version 3.1.0.beta3 of the beta and tests-passed branches, attackers are able to bypass Discourse's server-side request forgery SSRF protection for private IPv4 addresses by using a IPv4-mapped IPv6 address. The issue is patched in the...

PT-2023-21570 · Discourse · Discourse

Name of the Vulnerable Software and Affected Versions: Discourse versions prior to 3.1.0.beta3 Description: The issue allows attackers to bypass Discourse's server-side request forgery SSRF protection for private IPv4 addresses by using an IPv4-mapped IPv6 address. Recommendations: For versions...

USN-5962-1 linux-intel-iotg vulnerabilities

It was discovered that the Upper Level Protocol ULP subsystem in the Linux kernel did not properly handle sockets entering the LISTEN state in certain protocols, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly execut...

CVE-2023-28099 OpenSIPS has vulnerability in the ds_is_in_list() function

OpenSIPS is a Session Initiation Protocol SIP server implementation. Prior to versions 3.1.9 and 3.2.6, if dsisinlist is used with an invalid IP address string NULL is illegal input, OpenSIPS will attempt to print a string from a random address stack garbage, which could lead to a crash. All user...

Ubuntu 22.10 : Linux kernel (KVM) vulnerabilities (USN-5950-1)

The remote Ubuntu 22.10 host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5950-1 advisory. It was discovered that the Upper Level Protocol ULP subsystem in the Linux kernel did not properly handle sockets entering the LISTEN state in certain...

Microsoft Defender for Cloud Management Port Exposure Confusion

Prior to March 9, 2023, Microsoft Defender for Cloud incorrectly marked some Azure virtual machines as having secured management ports including SSH port 22/TCP, RDP port 3389/TCP and WINRM port 5985/TCP, when in fact one or more of these ports were exposed to the internet. This occured when the...

USN-5951-1: Linux kernel (IBM) vulnerabilities

It was discovered that the Upper Level Protocol ULP subsystem in the Linux kernel did not properly handle sockets entering the LISTEN state in certain protocols, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly execut...

USN-5951-1 linux-ibm, linux-ibm-5.4 vulnerabilities

It was discovered that the Upper Level Protocol ULP subsystem in the Linux kernel did not properly handle sockets entering the LISTEN state in certain protocols, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly execut...

CVE-2023-20049

A vulnerability in the bidirectional forwarding detection BFD hardware offload feature of Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers, ASR 9902 Compact High-Performance Routers, and ASR 9903 Compact High-Performance Routers could allow an unauthenticated, remote...

Design/Logic Flaw

A vulnerability in the bidirectional forwarding detection BFD hardware offload feature of Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers, ASR 9902 Compact High-Performance Routers, and ASR 9903 Compact High-Performance Routers could allow an unauthenticated, remote...

USN-5941-1: Linux kernel (KVM) vulnerabilities

It was discovered that the Upper Level Protocol ULP subsystem in the Linux kernel did not properly handle sockets entering the LISTEN state in certain protocols, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly execut...

USN-5941-1 linux-kvm vulnerabilities

It was discovered that the Upper Level Protocol ULP subsystem in the Linux kernel did not properly handle sockets entering the LISTEN state in certain protocols, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly execut...