DEBIAN-CVE-2023-45288
- Source
- https://security-tracker.debian.org/tracker/DEBIAN-CVE-2023-45288
- Import Source
- https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-45288.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2023-45288
- Upstream
- Published
- 2024-04-04T21:15:16Z
- Modified
- 2025-09-18T05:19:37Z
- Summary
- [none]
- Details
-
An attacker may cause an HTTP/2 endpoint to read arbitrary amounts of header data by sending an excessive number of CONTINUATION frames. Maintaining HPACK state requires parsing and processing all HEADERS and CONTINUATION frames on a connection. When a request's headers exceed MaxHeaderBytes, no memory is allocated to store the excess headers, but they are still parsed. This permits an attacker to cause an HTTP/2 endpoint to read arbitrary amounts of header data, all associated with a request which is going to be rejected. These headers can include Huffman-encoded data which is significantly more expensive for the receiver to decode than for an attacker to send. The fix sets a limit on the amount of excess header frames we will process before closing a connection.
- References