Missing Authorization vulnerability in Himalaya Saxena Highcompress Image Compressor.This issue affects Highcompress Image Compressor: from n/a through 6.0.0.

A vulnerability has been discovered in VX Search Enterprise affecting version 10.2.14 that could allow an attacker to execute persistent XSS through /setup_smtp in smtp_server, smtp_user, smtp_password and smtp_email_address parameters. This vulnerability could allow an attacker to store malicious JavaScript payloads on the system to be triggered when the page loads.

A vulnerability has been discovered in VX Search Enterprise affecting version 10.2.14 that could allow an attacker to execute persistent XSS through /add_job in job_name. This vulnerability could allow an attacker to store malicious JavaScript payloads on the system to be triggered when the page loads.

A vulnerability has been discovered in VX Search Enterprise affecting version 10.2.14 that could allow an attacker to execute persistent XSS through /add_command_action in action_value. This vulnerability could allow an attacker to store malicious JavaScript payloads on the system to be triggered when the page loads.

A vulnerability has been discovered in VX Search Enterprise affecting version 10.2.14 that could allow an attacker to execute persistent XSS through /setup_odbc in odbc_data_source, odbc_user and odbc_password parameters. This vulnerability could allow an attacker to store malicious JavaScript payloads on the system to be triggered when the page loads.

Because of a logical error in XSA-407 (Branch Type Confusion), the mitigation is not applied properly when it is intended to be used. XSA-434 (Speculative Return Stack Overflow) uses the same infrastructure, so is equally impacted. For more details, see: https://xenbits.xen.org/xsa/advisory-407.html https://xenbits.xen.org/xsa/advisory-434.html

Unlike 32-bit PV guests, HVM guests may switch freely between 64-bit and other modes. This in particular means that they may set registers used to pass 32-bit-mode hypercall arguments to values outside of the range 32-bit code would be able to set them to. When processing of hypercalls takes a considerable amount of time, the hypervisor may choose to invoke a hypercall continuation. Doing so involves putting (perhaps updated) hypercall arguments in respective registers. For guests not running in 64-bit mode this further involves a certain amount of translation of the values. Unfortunately internal sanity checking of these translated values assumes high halves of registers to always be clear when invoking a hypercall. When this is found not to be the case, it triggers a consistency check in the hypervisor and causes a crash.

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Xenioushk BWL Advanced FAQ Manager.This issue affects BWL Advanced FAQ Manager: from n/a through 2.0.3.

Recent x86 CPUs offer functionality named Control-flow Enforcement Technology (CET). A sub-feature of this are Shadow Stacks (CET-SS). CET-SS is a hardware feature designed to protect against Return Oriented Programming attacks. When enabled, traditional stacks holding both data and return addresses are accompanied by so called "shadow stacks", holding little more than return addresses. Shadow stacks aren't writable by normal instructions, and upon function returns their contents are used to check for possible manipulation of a return address coming from the traditional stack. In particular certain memory accesses need intercepting by Xen. In various cases the necessary emulation involves kind of replaying of the instruction. Such replaying typically involves filling and then invoking of a stub. Such a replayed instruction may raise an exceptions, which is expected and dealt with accordingly. Unfortunately the interaction of both of the above wasn't right: Recovery involves rem…

Incorrect placement of a preprocessor directive in source code results in logic that doesn't operate as intended when support for HVM guests is compiled out of Xen.