The vulnerability of the vpx_img_alloc() function in the libvpx video encoding/decoding library allows a perpetrator to execute arbitrary code.

The vulnerability of the vpximgalloc function in the libvpx video encoding/decoding library is related to integer overflow. Exploiting this vulnerability could allow a remote attacker to execute arbitrary code by sending specially crafted data...

DEBIAN-CVE-2024-5197

There exists interger overflows in libvpx in versions prior to 1.14.1. Calling vpximgalloc with a large value of the dw, dh, or align parameter may result in integer overflows in the calculations of buffer sizes and offsets and some fields of the returned vpximaget struct may be invalid. Calling...

[NetScaler-SDX] SVM Management UI displays "Halted" about VPX "VM State"

In a rare case, if you check the NetScaler VPX state on SVM UI, you may see "VM State" displays "Halted" with red light. Your VPX is actually healthy and you can logon VPX NSIP successfully. Business traffic is not impacted...

PT-2024-40776 · Libvpx · Libvpx

Name of the Vulnerable Software and Affected Versions: libvpx affected versions not specified Description: The issue is related to a crash caused by a use-of-uninitialized-value error. The crash occurs in the vpx codec peek stream info function, as reported by the OSS-Fuzz tool. Recommendations: ...

[NetScaler] Multicast packets may cross members within LA channel on SDX with i40e NICs

On a Fortville NIC SDX platform with i40e driver. When LA channel is configured with 10G or 25G NICs and is assigned to a NetScaler VPX. The VPX may receive unexpected multicast packets that was sent by itself through another member of the LA channel. Such as VRRP control plane messages. The...

VPX running on KVM platforms with virtio NICs might report TX stall when operating in single PE mode

VPX running on KVM platforms with virtio NICs might report TX stall when operating in single PE mode. The following conditions must be met to hit this issue. 1 VPX hosted on KVM 2 Version: 13.1-45.x or later 3 2vCPU single PE 4 When the packet takes more than 4 sec to get transferred...

ADM collector metric services port 5563 is down on VPXs

Traffic Management Load Balancing Service ADM collector metric services port 5563 is down on the VPX...

Extended ICA connection interruption during NetScaler HA failover on Azure

Users are encountering extended ICA connection interruptions during NetScaler High Availability HA failover events within the Azure environment. The HA node pairs have been configured on Azure, with VPX serving as the Citrix Gateway for a Citrix Virtual Apps and Desktops CVAD environment. Upon...

How to change admin profile on Citrix NetScaler VPX instances configured in cluster

This article provides instruction to change the admin profile of a Citrix NetScaler VPX instance that is configured in a cluster on a Citrix NetScaler SDX appliance. Requirements Two Citrix NetScaler SDX appliances should be provisioned in advance with Citrix NetScaler VPX instances and they shou...

Citrix ADC nsppe buffer overflow

Added: 08/09/2023 CVE: CVE-2023-3519 Background Citrix ADC formerly NetScaler ADC is an application delivery and load balancing platform. Problem A buffer overflow vulnerability in the nsppe process in Citrix ADC allows an unauthenticated attacker to execute arbitrary commands by making a special...

How to export a VPX instance on an SDX to an XVA file

This article will describe how to export an XVA file of a VPX from an SDX. This file contains the entire contents of the VPX including an image of the VPX's file systems...

Exploit for Code Injection in Citrix Netscaler_Application_Delivery_Controller

Citrix ADC RCE CVE-2023-3519 This exploit uses addresses and s...

How to Change NSIP of VPX Instance in SDX

Thisarticle explains how to modify the NSIP on a SDX VPX instance. Background User has already provisioned a VPX instance with NSIP on SDX and later decides to change the NSIP of the instance. To do this, the user had chosen “config ns” utility on instance and successfully modified and verified...

NetScaler/Gateway VPX GUI shows FREEMIUM.

NetScaler VPX GUI shows as freemium with limited Express features. As shown in below image...

How to increase space on Citrix ADC VPX instance

How to increase space on Citrix ADC VPX instance?...

virt-v2v security, bug fix, and enhancement update

2.0.7-6.0.1 - Replaced bugzilla.oracle.com references Orabug: 34202300 - replaced upstream references Orabug:34089586 1:2.0.7-6 - Install qemu-ga package during conversion resolves: rhbz2028764 1:2.0.7-5 - Remove LVM2 devices file during conversion resolves: rhbz2112801 - Add support for Zstandar...

Citrix ADC VPX VM STATE Halted after upgrade to SDX 13.1

After upgrade to SDX 13.1 27.59 or lower 13.1 version firmware, you may find SDX booted with SVM running, but VPX in Halted state. Try launch the VM you get the following error: "INTERNALERROR xenopsd internal error: Unix.UnixerrorUnix.ENODEV. "write". "" Checking mpscontrol.log on SVM, you may...

Unable to VPX instance on ADM : Error Exception unable to login

Symptoms - When adding instance onto their ADM some users see the below error message...

ADC VPX on Azure Cloud : Unable to boot due to error : can't load 'kernel'

Citrix VPX on Azure is unable to boot. In Azure console; Under Boot Diagnostics, it is observed that the booting is not completed. The error "can't load 'kernel'" is seen and the VPX boots in single-user mode...

VPX on SDX 22000 - 12.1 build 55.18 - SSL card going down due to unsupported ECDSA ECC Curves

SSL card on primary and secondary devices are showing failed and then both devices have become secondary. In thenewnslog , the countersslerrcardstatusdown will get incremented. In the packet trace, you can see the Client certificate with ECDSA ECC Curve 224...