Out-of-bounds Write (HTTP2Shell)

Overview Affected versions of this package are vulnerable to Out-of-bounds Write HTTP2Shell via block-switch handling in the bundled Brotli decoder, specifically DecodeBlockTypeAndLength in decode.c. An attacker can execute arbitrary code by supplying a crafted Brotli-compressed stream with an...

Symlink Attack

Overview Affected versions of this package are vulnerable to Symlink Attack in the handling of Unix named-mutex and shared-memory paths via insecure global directories, symlink races, and unsafe permission changes. An attacker can truncate or overwrite files, widen directory permissions, or eleva...

Symlink Attack

Overview Affected versions of this package are vulnerable to Symlink Attack via the handling of Unix named-mutex and shared-memory paths in global directories. An attacker can gain elevated privileges, truncate or overwrite files, or widen directory permissions by exploiting symlink races or...

Insertion of Sensitive Information Into Sent Data

Overview Affected versions of this package are vulnerable to Insertion of Sensitive Information Into Sent Data via the SocketsHttpHandler process. An attacker can obtain sensitive proxy credentials by causing an HTTP redirect that results in the Proxy-Authorization header being sent to an...

Inefficient Algorithmic Complexity

Overview Affected versions of this package are vulnerable to Inefficient Algorithmic Complexity in the processing of signed XML data due to inefficient algorithmic complexity in the System.Security.Cryptography.Xml and System.Private.Xml components. An attacker can cause excessive resource...

Out-of-bounds Write

Overview Affected versions of this package are vulnerable to Out-of-bounds Write in the DateTime Hebrew-number parsing process. An attacker can cause the application to terminate unexpectedly by providing specially crafted input that leads to reading outside the expected stack bounds. Remediation...

Uncontrolled Recursion

Overview Affected versions of this package are vulnerable to Uncontrolled Recursion through the processing of XML data in cryptographic operations. An attacker can cause excessive resource consumption and application unavailability by submitting specially crafted XML input that triggers...

Improper Certificate Validation

Overview Affected versions of this package are vulnerable to Improper Certificate Validation in the System.Net.Security process. An attacker can bypass mutual TLS client authentication by presenting an invalid or unauthorized client certificate, potentially gaining unauthorized access to resource...

Unchecked Return Value

Overview Affected versions of this package are vulnerable to Unchecked Return Value due to improper access control in the diagnostics IPC. An attacker can gain elevated privileges by exploiting a missing error check that results in incorrect access control lists being applied to shared resources...

Unchecked Input for Loop Condition

Overview Affected versions of this package are vulnerable to Unchecked Input for Loop Condition via unchecked input for the loop condition in the System.Net.WebSockets. An attacker can cause a denial of service by sending specially crafted network requests that trigger excessive resource...

Improper Encoding or Escaping of Output

Overview Affected versions of this package are vulnerable to Improper Encoding or Escaping of Output via message routing in the System.Net.Mail SMTP client. An attacker can spoof email messages by exploiting flaws in the SMTP client during message routing, causing messages to appear as though the...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via HTTP/2 request processing. An attacker can cause a denial of service by sending crafted HTTP/2 traffic that triggers an out-of-memory condition, exhausting available memory and...