Description
Some HTTP/2 implementations are vulnerable to a header leak, potentially leading to a denial of service. The attacker sends a stream of headers with a 0-length header name and 0-length header value, optionally Huffman encoded into 1-byte or greater headers. Some implementations allocate memory for these headers and keep the allocation alive until the session dies. This can consume excess memory.
Remediation
References
Related Vulnerabilities
Oracle HTTP Server Out-of-bounds Write Vulnerability (CVE-2022-23943)
WordPress Plugin File Groups 'fgid' Parameter SQL Injection (1.1.2)
Drupal Core 8.9.x Security Bypass (8.9.0 - 8.9.5)
WordPress Plugin Error Log Viewer by BestWebSoft Cross-Site Scripting (1.0.5)
WordPress Plugin WP Table Builder-WordPress Table Cross-Site Scripting (1.4.6)