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Memory Allocation with Excessive Size Value

CVE-2024-2653

High
8.2/10

Summary

The package amphp/http implements HTTP/2 in a way that is vulnerable to "HTTP/2 CONTINUATION Flood". It will "CONTINUATION" frames in an unbounded buffer and will not check a limit until it has received the set "END_HEADERS" flag. Since the flag is never set, it will result in an Out-of-Memory (OOM) crash. This issue affects amphp/http versions 1.6.0-rc1 through 1.7.2 and 2.0.0-beta.1 through 2.1.0 and amphp/http-client versions 4.0.0-rc10 through 4.0.0.

  • LOW
  • NETWORK
  • LOW
  • UNCHANGED
  • NONE
  • NONE
  • NONE
  • HIGH

CWE-789 - Memory Allocation with Excessive Size Value

The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated.

References

Advisory Timeline

  • Published