CVE-2019-9516

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.

Weakness classification

• CWE-400: Uncontrolled Resource Consumption
• CWE-770: Allocation of Resources Without Limits or Throttling

Primary references

• cret@cert.org — Mailing List, Third Party Advisory
• cret@cert.org — Mailing List, Third Party Advisory
• cret@cert.org — Mailing List, Third Party Advisory
• cret@cert.org — Mailing List, Third Party Advisory
• cret@cert.org — Mailing List, Third Party Advisory
• cret@cert.org — Third Party Advisory
• cret@cert.org — Third Party Advisory
• cret@cert.org — Third Party Advisory
• cret@cert.org — Third Party Advisory
• cret@cert.org — Third Party Advisory
• cret@cert.org — Third Party Advisory
• cret@cert.org — Third Party Advisory